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DLT2000 SCSI Interface 

DLT2000/DLT2700 Cartridge Tape Subsystem  8-93 

8.4.14 READ BUFFER (3Ch)   

Bit

7

6

5

4

3

2

1

0

0

Operation Code (3Ch)

Logical Unit Number

Reserved

Mode

(MSB)

Byte

(LSB)

Allocation Length

Unused

Flag

Buffer Offset

Buffer ID

1

(MSB)

(LSB)

Reserved

2

Link

3

4

5

6

7

8

9

 

Figure 8-60 READ BUFFER CDB   

READ BUFFER is used in conjunction with WRITE BUFFER as a diagnostic function 
for testing the drive's data buffer and the SCSI bus integrity.  

Mode  

The drive supports the following values within the field. If any nonsupported value is 
set, the drive terminates the command with a CHECK CONDITION status and an 
ILLEGAL REQUEST sense key set.  

Mode

Description

Combined Header and Data
Data
Descriptor

000b
010b
011b

 

Figure 8-61 READ BUFFER Modes Supported  

Buffer ID & Offset  

The drive only supports a single Buffer ID field of zero, and offsetting of data is not 
supported. If these fields are nonzero, the drive returns a CHECK CONDITION status 
with an ILLEGAL REQUEST sense key set.  

Summary of Contents for DLT 2500

Page 1: ... DLT2000 DLT2500 DLT2700 Cartridge Tape Subsystem Product Manual Date 19 January 96 Order Number 81 109132 03 ...

Page 2: ...on Number 81 109132 03 SERVICE CENTERS Quantum Service Center 715 Sycamore Avenue Milpitas California 95035 Phone 408 894 4000 Fax 408 894 3218 Quantum Gmbh Genferstrasse 4B 60437 Frankfurt am Main 56 Germany Phone 49 69 509 1080 Fax 49 69 509 10891 Quantum Asia Pacific Pte Ltd 50 Tagore Lane b1 04 Singapore 2678 Phone 65 450 9333 Fax 65 452 2544 CompacTape is a trademark of Quantum Corporation DL...

Page 3: ...d 4 Consult the dealer or an experienced radio TV technician for help The shielded interconnect cable shipped with the unit should not be altered or modified in any way The unit shipped without a shielded interconnect cable must use a shielded interconnect cable The user may find the following booklet prepared by the Federal Communications Commission helpful How to Identify and Resolve Radio TV In...

Page 4: ...erence in which case the user at his own expense will be required to take whatever measures may be required to correct the interference The shielded interconnect cable shipped with the unit should not be altered or modified in any way The unit shipped without a shielded cable must use a shielded interconnect cable Warning This is a Class A product In a domestic environment this product may cause r...

Page 5: ...art 2 1 2 2 2 Installation Setup 2 2 2 2 3 Site Setup 2 2 2 2 4 Site Guidelines 2 2 2 3 INSTALL THE SUBSYSTEM 2 4 2 4 CONFIGURE THE DLT2000 TABLETOP 2 4 2 4 1 Configuration Guidelines 2 4 2 4 2 DISABLE PARITY Checking 2 5 2 4 3 Changing the SCSI ID 2 5 2 5 CONNECT THE CABLES 2 5 2 5 1 Examine the DLT2000 Rear Panel 2 6 2 5 2 Connect the SCSI Signal Cable 2 6 2 5 3 Terminate the SCSI Bus 2 7 2 5 4 ...

Page 6: ...NG TAPE CARTRIDGE 3 23 3 9 UNLOADING A CARTRIDGE 3 24 3 10 PRESERVING CARTRIDGES 3 26 CHAPTER 4 CONFIGURING AND OPERATING THE DLT2500 MINI LIBRARY 4 1 IN THIS CHAPTER 4 1 4 2 INTRODUCTION TO THE MINI LIBRARY 4 6 4 3 CONFIGURE THE DLT2500 4 7 4 3 1 Configuration guidelines 4 7 4 3 2 Connecting the SCSI Signal Cable 4 7 4 4 INSTALLATION TESTING 4 8 4 4 1 Run POST 4 8 4 4 2 What to Do after POST 4 8 ...

Page 7: ...TION TO THE MINI LIBRARY 5 1 5 3 CONFIGURING THE DLT2700 5 2 5 3 1 Configuration Guidelines 5 3 5 3 2 Disable Parity Checking 5 3 5 3 3 Change the SCSI ID 5 3 5 4 MODE SELECT KEY 5 5 5 4 1 OCP Disabled Mode 5 5 5 4 2 Automatic Mode 5 7 5 4 3 Manual Mode 5 7 5 4 4 Service Mode 5 8 5 5 SELECTING DENSITY 5 9 5 6 OPERATOR CONTROL PANEL 5 12 5 7 POWER ON PROCESS 5 15 5 8 SLOT SELECT LOAD UNLOAD 5 17 5 ...

Page 8: ...1 Before Doing the Procedure 7 2 7 3 CREATING A FIRMWARE UPDATE TAPE 7 4 7 3 1 On UN X Systems 7 4 7 4 FIRMWARE UPDATE PROCEDURE 7 5 7 4 1 Updating the Firmware on DLT2000 Drive Only Configuration 7 5 7 4 2 Updating the Firmware on the DLT2500 Drive and Loader Configuration 7 10 7 4 3 Updating the Firmware on the DLT2700 Drive and Loader Configuration 7 14 CHAPTER 8 DLT2000 SCSI INTERFACE 8 1 OVER...

Page 9: ...ODE SELECT Parameter List 8 47 8 4 9 2 MODE SELECT Pages 8 50 8 4 9 3 Control Mode Page 0Ah 8 51 8 4 9 4 Data Compression Page 0Fh 8 53 8 4 9 5 Device Configuration Page 10h 8 55 8 4 9 6 Disconnect Reconnect Page 8 58 8 4 9 7 Medium Partition Page 11h 8 60 8 4 9 8 Read Write Error Recovery Page 01h 8 61 8 4 9 9 EEROM Vendor Unique Page 3Eh 8 63 8 4 9 10 MODE SELECT Changeable Parameters 8 69 8 4 1...

Page 10: ...4 26 1 Header and Data Mode 8 127 8 4 26 2 Write Data 8 127 8 4 26 3 Download Microcode 8 127 8 4 26 4 Download Microcode and Save 8 127 8 4 27 WRITE FILEMARKS 10h 8 129 8 5 SUPPORTED SCSI 2 MEDIUM CHANGER DEVICE COMMANDS 8 131 8 5 1 INITIALIZE ELEMENT STATUS 07h 8 132 8 5 2 READ ELEMENT STATUS B8h 8 133 8 5 2 1 Element Status Data Header 8 134 8 5 2 2 MEDIUM TRANSPORT ELEMENT STATUS PAGE 8 135 8 ...

Page 11: ...Magnetic Radiated Susceptibility A 20 A 6 5 Radiated Susceptibility A 21 A 6 6 Conducted Susceptibility A 21 A 6 7 ESD Failure Level Limits A 22 A 6 8 Acoustic Noise Emissions A 22 A 7 REGULATORY REQUIREMENTS A 24 A 7 1 Safety Requirements A 24 A 7 2 Electromagnetic Emission Requirements A 24 A 8 DRIVE RELIABILITY FACTORS A 25 A 9 COMPACTAPE RECORDING MEDIA SPECIFICATIONS A 26 B DEFINITION OF VEND...

Page 12: ...ITE PROTECT SWITCH ON A CARTRIDGE 4 20 4 7 DLT2500 MAGAZINE 4 22 4 8 INSERTING A CARTRIDGE INTO THE MAGAZINE 4 24 4 9 REMOVING A CARTRIDGE FROM THE MAGAZINE 4 25 5 1 CHANGING THE SCSI ID VIA THE PUSHBUTTON SWITCH 5 4 5 2 DLT2700 OPERATOR CONTROL PANEL 5 6 5 3 WRITE PROTECT SWITCH ON A CARTRIDGE 5 21 5 4 INSERTING A CARTRIDGE INTO THE MAGAZINE 5 22 5 5 REMOVING A CARTRIDGE FROM THE FRONT OF THE MAG...

Page 13: ...EAD WRITE BYTES TRANSFERRED LOG SENSE PAGE FORMAT 8 44 8 29 MODE SELECT CDB 8 46 8 30 MODE SELECT PARAMETER LIST 8 47 8 31 MODE SELECT PAGES SUPPORTED 8 50 8 32 CONTROL MODE PAGE 0AH 8 51 8 33 DATA COMPRESSION PAGE 8 53 8 34 DEVICE CONFIGURATION PAGE FORMAT 8 55 8 35 DISCONNECT RECONNECT PAGE FORMAT 8 58 8 36 DATA TRANSFER DISCONNECT CONTROL 8 59 8 37 MEDIUM PARTITION PAGE FORMAT 8 60 8 38 ERROR R...

Page 14: ...A 8 102 8 71 RESERVE UNIT CDB 8 112 8 72 RESERVE UNIT CDB 8 114 8 73 SEND DIAGNOSTIC CDB 8 115 8 74 SEND DIAGNOSTIC PARAMETER LIST FORMAT 8 117 8 75 SPACE CDB 8 120 8 76 SPACE CODE DEFINITION 8 120 8 77 TEST UNIT READY CDB 8 122 8 78 VERIFY CDB 8 123 8 79 WRITE CDB 8 124 8 80 WRITE BUFFER CDB 8 126 8 81 WRITE BUFFER MODES SUPPORTED 8 126 8 82 WRITE FILEMARKS CDB 8 129 8 83 INITIALIZE ELEMENT STATU...

Page 15: ...tem xv A 3 MOUNTING HOLE DIMENSIONS SIDE VIEW A 10 D 1 EEROM LOG AREA LAYOUT D 2 D 2 BUGCHECK LOG PACKET LAYOUT D 3 D 3 POST LOG PACKET LAYOUT D 4 D 4 EVENT LOG PACKET LAYOUT D 5 D 5 DIRECTORY R W ERROR EVENT LOG LAYOUT D 6 D 6 CODE UPDATE CUP LOG PACKET LAYOUT D 9 ...

Page 16: ... TO USE THE CLEANING CARTRIDGE 4 29 5 1 RESULTS OF DENSITY SELECTION USING A COMPACTAPE III TAPE 5 11 5 2 DLT2700 OPERATOR CONTROL PANEL 5 12 5 3 LOADER POWER ON SHELF TEST 5 15 5 4 LOAD UNLOAD FUNCTIONS 5 17 6 1 DLT2500 OCP BUTTON CONDITIONS 6 2 6 2 DLT2700 OCP BUTTON CONDITIONS 6 3 7 1 RESULTS DLT2000 CODE UPDATE 7 9 7 2 RESULTS DLT2500 CODE UPDATE 7 11 7 3 RESULTS DLT2700 CODE UPDATE 7 17 8 1 S...

Page 17: ...S A 17 A 17 NONOPERATING PACKAGED SHOCK DROP SPECIFICATIONS A 17 A 18 NONOPERATING UNPACKAGE VIBRATION SPECIFICATIONS A 17 A 19 NONOPERATING UNPACKAGED SHOCK SPECIFICATIONS A 18 A 20 CONDUCTED EMISSIONS A 20 A 21 RADIATED EMISSIONS 30 MHZ TO 30 GHZ A 20 A 22 LOW FREQUENCY MAGNETIC FIELDS 10 TO 3000 KHZ A 20 A 23 HIGH FREQUENCY ELECTRIC FIELDS 1 TO 1000 MHZ A 21 A 24 FAST TRANSIENT BURSTS FOR POWER...

Page 18: ...Table of Contents xviii DLT2000 DLT2500 DLT2700 Cartridge Tape Subsystem ...

Page 19: ...ates and reasons for the revisions Manual No Rev Level Date Summary of Changes 81 109132 01 April 14 1995 Original issue 81 109132 02 August 18 1995 Specifications and illustrations were upgraded DLT2500 Mini library section add 81 109132 03 January 19 1996 Caution added for unloading a tape cartridge AC Power Cord spec s added FCC Statement upgraded Upgraded Chapters 1 to 8 and appendix A ...

Page 20: ...Revision History xx DLT2000 DLT2500 DLT2700 Cartridge Tape Subsystem ...

Page 21: ...lease send your comments to Technical Publications Quantum Corporation 333 South Street Shrewsbury MA 01545 Purpose of This Manual This manual is isssued for the DLT2000 Cartridge Tape drive and DLT2500 and DLT2700 Cartridge Tape Subsystems The manual describes operating procedures code update and SCSI protocol features All care is taken to ensure accuracy However some of the parameters drawings a...

Page 22: ...LT2700 Mini Library includes configuration selecting density and other operation information for the loader such as the power on process the loader Mode Select key the operator control panel and functions of the Slot Select Load Unload and Eject buttons Chapter 6 Troubleshooting Guide for the DLT2500 DLT2700 Mini Library gives instructions on how to clear failures and describes the necessary condi...

Page 23: ...idrange and high end computing systems Using data compression and compaction the DLT2000 drive features a formatted capacity of 30 GB and a sustained user data transfer rate of 2 5 MB s The DLT2000 is a 5 25 inch form factor half inch tape drive The design includes a dual channel read write head Lempel Ziv LZ high efficiency data compression and tape mark directory to maximize data throughput and ...

Page 24: ...s read 1 4 High Capacity The amount of data the user can store on a tape CompacTape III cartridge can be up to 10 0 GB native capacity or 20 0 GB compressed depending on whether you select compression mode Built in data compression increases cartridge capacity and drive transfer rate 2 to 2 5 times Compression can be selected on the loader or drive front panel or from the host by using the SCSI MO...

Page 25: ...CompacTape III cartridge On a write from BOT the DLT2000 DLT2500 DLT2700 reformats the CompacTape III cartridge recorded at 2 6 6 0 or 10 0 GB format to the new specified format using the new specified format 1 8 Firmware Update Capability The DLT2000 includes Flash EEPROM technology that allows easy on site installation of microcode updates from tape 1 9 Embedded Diagnostics The DLT2000 has embed...

Page 26: ...Overview and Features of the DLT2000 DLT2500 DLT2700 Product 1 4 DLT2000 DLT2500 DLT2700 Cartridge Tape Subsystem ...

Page 27: ...2 6 DLT2000 Troubleshooting Chart 2 7 2 2 Prepare for the Installation This section describes how to prepare for the installation of the DLT2000 cartridge tape subsystem including Topic Section Before You Start 2 2 1 Installation Setup 2 2 2 Site Setup 2 2 3 Site Guidelines 2 2 4 2 2 1 Before You Start Installing the DLT2000 tabletop cartridge tape subsystem requires no special tools If you need t...

Page 28: ...e for the DLT2000 tabletop subsystem 3 Power off the system on which the DLT2000 tabletop subsystem is to be installed 2 2 3 Site Setup Place the DLT2000 on a flat sturdy level area such as a desk or tabletop 2 2 4 Site Guidelines Be sure to follow these guidelines for your DLT2000 The DLT2000 is designed to operate in harsh environments However use care in placing the drive in an environment that...

Page 29: ... a n d l e U n l o a d T o L o a d T o U n l o a d P r e s s B u t t o n W a i t L i g h t O p e n t h i s H a n d l e R e m o v e T a p e W a i t L i g h t O p e n t h i s H a n d l e I n s e r t T a p e C l o s e t h i s H a n d l e Z K O 1 2 1 7 0 2 D G U s e 2 6 6 0 1 0 0 C o m p r e s s D e n s i t y O v e r r i d e D e n s i t y S e l e c t CARTRIDGE INSERT RELEASE HANDLE DOWN SELECT BUTTON ...

Page 30: ...ion Guidelines 2 4 1 Disable Parity Checking 2 4 2 Changing the SCSI ID 2 4 3 The DLT2000 is factory set to SCSI ID 5 unless otherwise specified The drive is factory set for parity generation and checking is enabled 2 4 1 Configuration Guidelines All system uses the SCSI ID to identify or address the DLT2000 Follow these guidelines when configuring the DLT2000 for use on your system If you are ins...

Page 31: ... the drive Press the switch button s above or below the number display 0 7 to set the desired SCSI ID Press the top button to increase the number or press the bottom button to decrease the number MLO 012870 0 0 Figure 2 2 Changing the SCSI ID via the Pushbutton Switch 2 5 Connect the Cables Section 2 5 includes the following topics Topic Section Examine the DLT2000 Rear Panel 2 5 1 Connect the SCS...

Page 32: ...ut Termination Power Switch Power Connector Figure 2 3 Rear Panel Components 2 5 2 Connect the SCSI Signal Cable To connect the SCSI signal cable 1 Connect one end of the SCSI cable to the leftmost SCSI signal connector on the DLT2000 rear panel 2 Snap the wire cable clamps into place to secure the cable 3 Connect the other end of the SCSI signal cable to the SCSI connector on your system or for d...

Page 33: ...oing to terminate the cables externally 1 Connect the SCSI terminator to one of the SCSI signal connectors on the DLT2000 rear panel 2 Snap the wire cable clamps into place or tighten screws whichever is supplied to secure the terminator Not the last or only device on the SCSI bus Be sure to install the terminator at the end of the bus The DLT2000 to supply TRM PWR on the bus by adding a jumper to...

Page 34: ...ottom All lights stay on for a few seconds 2 All lights on the left front panel turn on at the same time for about three seconds and then turn off 3 The green Operate Handle the orange Write Protected and the Yellow Use Cleaning Tape lights turn off The yellow Tape in Use light blinks while the tape drive initializes 4 After initialization if no cartridge is loaded the yellow Tape In Use light tur...

Page 35: ... What to Do after POST Table 2 3 After POST If Then All the events in Table 2 2 took place POST succeeded Bring up the system and run the optional system tests See Chapter 3 for operating the drive and selecting density All left or right side lights on the DLT2000 front panel blink only POST failed See Table 2 4 ...

Page 36: ...er might be incorrect Check your SCSI adapter installation The SCSI signal cable might be loose Make sure the connector on each end of the cable is fully seated The SCSI terminator might not be present or might be loose Install the terminator make sure the terminator is fully seated The SCSI bus might not be correctly terminated If the DLT2000 is the last or only device on the bus make sure the te...

Page 37: ...er cord connections with the DLT2000 power switch off All right side or all left side indicators on the DLT2000 front panel blink A drive fault has occurred Press the Unload button on the DLT2000 front panel to clear the error If unsuccessful power off then on and look at indicators to determine if POST executed successfully You are finding fatal or nonfatal errors for which you cannot determine t...

Page 38: ...Installing and Configuring the DLT2000 Tabletop Drive 2 12 DLT2000 DLT2500 DLT2700 Cartridge Tape Subsystem ...

Page 39: ... sections Topic Section Before You Install the DLT2000 Drive 3 2 Overview of the Front Panel 3 4 Selecting Density 3 3 Description of Controls and Indicators 3 5 Description of the Tape Cartridge 3 6 Loading a Cartridge 3 7 Using the Cleaning Tape Cartridge 3 8 Unloading a Cartridge 3 9 Preserving Cartridges 3 10 3 2 Before You Install the DLT2000 Drive Section 3 2 includes Topic Section Disabling...

Page 40: ...y you can disable parity checking by adding a jumper to the SCSI connector on the left side of the DLT2000 drive Figure 3 1 To disable parity 1 Use Figure 3 1 Number to locate the SCSI ID connector on the drive Left Side ZKO 1217 17 RGS Right Side 1 3 2 Front Bezel Front Bezel 1 TRM PWR TRM ENB Connector 2 SCSI ID Connector 3 Loader Connector Figure 3 1 DLT2000 Drive Connectors ...

Page 41: ...ctor represent ID Pins LKG 9295 94F Remote ID Present Disable Parity Figure 3 2 SCSI ID Connector Pins _________________________ Note _____________________________ A jumper must always be placed on the Remote ID Present position Figure 3 2 for the host to recognize any ID selection on this connector ___________________________________________________________ ...

Page 42: ... 5 I Disable parity checking The jumper goes in this position with any SCSI ID you choose 3 2 2 Changing the SCSI ID The drive is shipped with SCSI ID 5 unless otherwise specified You can change the SCSI ID by adding jumpers to the drive s SCSI connector Figure 3 1 To change the SCSI ID 1 Use Figure 3 1 number to locate the SCSI ID connector on the drive 2 Choose a SCSI ID from 0 to 7 3 Use Figure...

Page 43: ...roller module has active terminators The differential DLT2000 controller module does not have on board termination You can configure the single ended DLT2000 drive to supply termination power and termination on the bus To supply terminator power and provide termination for the SCSI bus 1 Use Figure 3 1 number to locate the TRM PWR TRM ENB connector on the drive 2 Place jumpers in the positions sho...

Page 44: ...idge Tape Subsystem 3 2 4 Locating the SCSI Cable and Power Connectors To install the DLT2000 drive note the location of the rear connectors Figure 3 5 Rear A ZKO 1217 16 RGS 3 Rear B 1 2 Figure 3 5 DLT2000 Rear Connectors SCSI Connector Power Connector Power Connector Storage Works Option ...

Page 45: ...e CompacTape III the user can select density by using any of the following operations 1 On all read operations and all write append operations the recorded density is the density to be used 2 On a Write from BOT the tape density may be changed by The Density Select button Using the Density Select button always overrides a host selection A programmable host selection via your operating system The D...

Page 46: ...of the following Change the density selection Unload the tape Density Select Example If you have loaded a tape with a prerecorded 2 6 density and you use the Density Select button to select 10 0 density the following should happen The 2 6 light remains lit density has not changed yet and the steady light indicates recorded tape density The 10 0 light blinks density change is pending Density Overri...

Page 47: ...nsity and the Density Override light For example if the actual tape density is 10 0 GB and the selected tape density is 10 0 GB then the indicator next to 10 0 lights The Density Select button is used and if the actual tape density differs from the density selected 1 The light with the actual density is on steady 2 The light with the selected density blinks 3 Density Override lights steady For exa...

Page 48: ...o v e T a p e W a i t L i g h t O p e n t h i s H a n d l e I n s e r t T a p e C l o s e t h i s H a n d l e Z K O 1 2 1 7 0 2 D G U s e 2 6 6 0 1 0 0 C o m p r e s s D e n s i t y O v e r r i d e D e n s i t y S e l e c t CARTRIDGE INSERT RELEASE HANDLE DOWN SELECT BUTTON Figure 3 6 DLT2000 Indicators Indicators Left Side of Drive Indicators Right Side of Drive Density light 2 6 Write Protected ...

Page 49: ...ape When the user pushes Unload the DLT2000 waits until an active write to tape is completed before beginning the unload sequence The drive then rewinds the tape back into the cartridge The tape must be completely rewound and unloaded into the cartridge before you can remove the cartridge from the drive An unload operation may take 20 seconds from BOT If the drive is in error state all right side ...

Page 50: ...0 Basic Tape Drive 3 12 DLT2000 DLT2500 DLT2700 Cartridge Tape Subsystem 3 5 4 Indicator Action during Power On Self Test and Operation When you turn on system power the drive performs the power on self test POST The sequence of events is ...

Page 51: ...Use light turns off 2 The green Operate Handle light turns on 3 The handle is unlatched 4 The drive beeps momentarily You can now raise the handle and insert a cartridge b A cartridge is present and the handle is down The drive loads the cartridge When the yellow Tape In Use light stops blinking and stays on the tape s actual density lights For example if the actual tape density is 2 6 GB then the...

Page 52: ...mands However it might take longer for the media to become ready After a bus reset the tape drive responds within a bus selection timeout period Use this table to determine the drive s operating condition Table 3 3 Determining the Drive s Operating Condition Label Color State Operating Condition Light Right front panel Write Protected Orange On Off Tape is write protected Tape is write enabled Tap...

Page 53: ... Yellow On Blinking Tape is recorded in 2 6 format Tape is recorded in another density You selected this density for a write from BOT 6 0 Yellow On Blinking Tape is recorded in 6 0 format Tape is recorded in another density You selected this density for a write ROM BOT 10 0 Yellow On default Blinking Tape is recorded in 10 0 format Tape is recorded in another density You selected this density for ...

Page 54: ...ve 3 16 DLT2000 DLT2500 DLT2700 Cartridge Tape Subsystem Table 3 4 Determining the Drive s Operating Condition cont d Label Color State Operating Condition Light Left Front Panel All four right side or all left side lights Blinking A POST error occurred ...

Page 55: ...al erasure of data Before loading the tape cartridge into the drive position the write protect switch on the front of the cartridge Figure 3 7 Left so the cartridge is write protected Right so the cartridge is write enabled When you slide the switch to the left the small orange rectangle is visible This means data cannot be written to the tape The arrow beneath the orange rectangle and over the tw...

Page 56: ... Tape Drive 3 18 DLT2000 DLT2500 DLT2700 Cartridge Tape Subsystem Figure 3 7 shows the write protect switch on the tape cartridge ORANGE INDICATOR WRITE PROTECTED WRITE Z K O 1 2 1 7 0 4 D G WRITE PROTECT SWITCH ENABLED Figure 3 7 Tape Cartridge ...

Page 57: ... you move the write protect switch Then To the left the tape is write protected the orange indicator on the cartridge shows Data cannot be written to the tape To the right the tape is write enabled Data can be written to the tape if it is not software write protected Table 3 6 describes what happens to data protection when you move the write protect switch during operation Table 3 6 After Loading ...

Page 58: ...loading a cartridge Figure 3 8 1 When the green light is on steady pull the cartridge insert release handle open 2 Insert the cartridge 3 Push the cartridge into the drive 4 Push the handle closed The green light turns off and the yellow light blinks to show the tape is loading When the tape is at the BOT marker the yellow light turns on steady The tape is now ready for use ...

Page 59: ...ing the DLT2000 Basic Tape Drive DLT2000 DLT2500 DLT2700 Cartridge Tape Subsystem 3 21 Figure 3 8 shows how to load a cartridge into the drive Handle Unload Unload Z K O 1 2 1 7 1 0 D G 1 2 3 4 Figure 3 8 Loading a Cartridge ...

Page 60: ...y A cartridge is loaded but the tape is not moving This can mean no application is communicating with the controller or that the application is communicating but is not delivering commands for tape motion The yellow light blinks irregularly A calibration read or write is in progress The yellow light blinks regularly The tape is loading unloading or rewinding The green light turns on and the beeper...

Page 61: ...remove the cleaning cartridge 2 A data cartridge causes Use Cleaning Tape to blink The data cartridge may be damaged Back up this data onto another cartridge Discard the old cartridge which may be damaged A damaged cartridge may cause unnecessary use of the cleaning cartridge 3 Use Cleaning Tape still lights after you clean the drive head Your data cartridge may be causing the problem Try another ...

Page 62: ...______________________________________________ To unload a cartridge from the drive Figure 3 9 1 Press the Unload button or issue the appropriate system software command The yellow Tape in Use light blinks as the tape rewinds 2 When the green light turns on the beeper also sounds pull the cartridge insert release handle open to eject the cartridge __________________________CAUTION ________________...

Page 63: ...Configuring and Operating the DLT2000 Basic Tape Drive DLT2000 DLT2500 DLT2700 Cartridge Tape Subsystem 3 25 Unload Z K O 1 2 1 7 0 9 D G 1 2 3 4 Figure 3 9 Unloading a Cartridge ...

Page 64: ...ge life always store the cartridge in its plastic container and in room environment conditions of 72 F 7 F 22 C 4 C If the tape cartridge has been exposed to heat or cold extremes stabilize the cartridge at room temperature for the same amount of time it was exposed up to 24 hours Do not place cartridges near electromagnetic interference sources such as terminals motors and video or X ray equipmen...

Page 65: ...the mini library and its operation Chapter 4 includes these main topics and sections Topic Section Introduction to the Mini Library 4 2 Configure the DLT2500 Mini Library 4 3 Installation Test 4 4 Operator Control Panel 4 5 Key Lock 4 6 Selecting Density 4 7 Default Operating Modes 4 8 Tape Cartridge Description 4 9 Magazine Description 4 10 When to Use the Cleaning Tape Cartridge 4 11 ...

Page 66: ...nfiguring and Operating the DLT2500 Mini Library 4 2 DLT2000 DLT2500 DLT2700 Cartridge Tape Subsytem MLO 012160 Shipping Screw Locking Lever Figure 4 1 Loosening the Shipping Screw Under the Mini Library ...

Page 67: ... DLT2500 DLT2700 Cartridge Tape Subsytem 4 3 MLO 012863 Figure 4 2 Rotate the Locking Lever Lift the locking lever on the front of the mini library Figure 4 2 to rotate the magazine locking mechanism This allows you to remove the magazine from the mini library ...

Page 68: ...uring and Operating the DLT2500 Mini Library 4 4 DLT2000 DLT2500 DLT2700 Cartridge Tape Subsytem MLO 012002 Label Power Switch Power Connector Fan SCSI Connectors Figure 4 3 Mini Library Rear Panel Components ...

Page 69: ...Configuring and Operating the DLT2500 Mini Library DLT2000 DLT2500 DLT2700 Cartridge Tape Subsytem 4 5 MLO 012131 Magazine Door Display Operator Buttons Key Lock Figure 4 4 Front of the DLT2500 ...

Page 70: ...bled to the media stored in the magazine slots Sequential access is disabled to the media supported automatically in auto loading mode If you do not issue the SCSI 2 medium changer commands the default mode of operation is sequential access to the media supported automatically in auto loading mode Auto loading is implemented as a side effect of the SCSI UNLOAD command as shown If Then An unload is...

Page 71: ...at is unique from any other device or system ID on the SCSI bus If you need to change the SCSI ID see the section on setting the SCSI ID later in this chapter The last or only device on the SCSI bus The user must terminate the bus by installing a terminator 4 3 2 Connecting the SCSI Signal Cable to the Mini Library Examine the components on the mini library rear panel Figure 4 3 to complete the ph...

Page 72: ...panel Ensure the sequence of events are the same as listed Event Action 1 The message LDR RST loader reset displays 2 The message LDR ACT loader active displays 3 A series of numbers display as the mini library elevator goes up and down 4 The message LDR RDY loader ready displays 4 4 2 What to Do after POST Verify whether the POST events took place If Then All the events took place POST succeeded ...

Page 73: ...ry DLT2000 DLT2500 DLT2700 Cartridge Tape Subsytem 4 9 4 5 Operator Control Panel The operator control panel OCP has 4 pushbuttons Figure 4 5 and Table 4 1 MLO 012191 Display Mode Select Load Unload Open Figure 4 5 Mini Library Operator Control Panel ...

Page 74: ...nts the current slot number on the display to the next slot number Load Unload Loads the currently selected cartridge into the tape drive Unloads the cartridge currently in the tape drive Resets the mini library if a loader error has occurred When the ERR LDR message displays press the Load Unload button to reset the mini library Open Opens the magazine door to access the magazine for loading and ...

Page 75: ...not moving DRV REW Tape is rewinding HC Use cleaning tape LDR RDY Power is on and no cartridge is in the drive LDR ACT Loader is moving a cartridge ERR MAG The status of cartridges reported by the loader and the drive is inconsistent ERR LDR A loader transfer assembly error occurred ERR DRV A drive error occurred ERR CTL A controller error occurred ERR UNK An error of unknown origin occurred SLOT ...

Page 76: ...rmat Flashing means the tape is recorded in another density You selected this density for a write from BOT 6 Tape drive activity as follows On steady means the tape is recorded in 6 GB format Blinking means the tape is recorded in another density You selected this density for a write from BOT 10 Tape drive activity as follows On steady means the tape is recorded in 10 GB format Flashing means the ...

Page 77: ... to open the door electronically ___________________________________________________________ 4 6 1 OCP Locked or Disabled When you insert the magazine into the mini library and close the magazine door the elevator scans the magazine The OCP pushbuttons are disabled 4 6 2 OCP Unlocked or Enabled The OCP pushbuttons unlocked or enabled allow operator intervention 4 6 3 Setting the SCSI ID Choose an ...

Page 78: ...any of the following 1 On a write from beginning of tape BOT tape density is selected by one of the following Front panel Density Select mode __________________________NOTE ____________________________ The user can execute a front panel density selection at any time but the selection takes effect only on the next write from BOT ____________________________________________________________ Programma...

Page 79: ...the density selection state until you do one of the following Change the density selection Press the Open button to open the door 3 Enter Density Select mode by pressing the Display Mode button and then the Select button on the OCP Using Density Select mode always overrides a host selection Example If you loaded a tape with a prerecorded 2 6 density and you use Density Select mode to select 10 den...

Page 80: ...density differs from the density you selected On operation before Write from BOT the display shows 1 Actual tape density on steady 2 Selected density flashing 3 OVR flashing On operation after write from BOT the display shows 1 Selected density on steady 2 OVR on steady 4 7 2 Programmable Host Selection via Your Operating System To select density via the SCSI bus 1 Do a SCSI MODE SELECT with the d...

Page 81: ...ng this mode depends on the state of the mini library If the display says It means the LDR ACT Loader is active LDR RDY Loader is inactive and no cartridge is in the drive DRV RDY Drive is ready DRV ACT Drive is active DRV REW Tape is rewinding HC Use cleaning tape WP Drive is in write protect status Switch Functions While in Normal mode When you press and release the Display Mode button the mini ...

Page 82: ... display says It means the DNS SEL Mini library is in Density Select mode OVR Front panel selection overrides host selection DRV RDY Drive is ready DRV ACT Drive is active DRV REW Tape is rewinding HC Use cleaning tape WP Drive is in write protect status Switch Functions While in Density Select mode When you press and release the Display Mode button once the mini library enters Normal mode ...

Page 83: ... SCSI ID is set to 0 SCSI ID 1 SCSI ID is set to 1 SCSI ID 2 SCSI ID is set to 2 SCSI ID 3 SCSI ID is set to 3 SCSI ID 4 SCSI ID is set to 4 SCSI ID 5 SCSI ID is set to 5 SCSI ID 6 SCSI ID is set to 6 SCSI ID 7 SCSI ID is set to 7 If you press the Select button while in SCSI ID Select mode the stored SCSI ID you chose moves by one increment If you press the Select button when the stored SCSI ID is...

Page 84: ...to the Left so the cartridge is Write Protected Right so the cartridge is Write Enabled When you slide the switch to the left the small orange rectangle is visible This means data cannot be written to the tape The arrow beneath the orange rectangle and over the two lines on the write protect switch lets you know that data cannot be written to the tape On the right side of the write protect switch ...

Page 85: ...sage displays Table 4 4 describes what happens to data protection when you move the write protect switch before you load the cartridge Table 4 4 Before Loading the Cartridge If you move the write protect switch Then To the left the tape is write protected with the orange indicator showing Data cannot be written to the tape To the right the tape is write enabled Data can be written to the tape if i...

Page 86: ...e front of the magazine has numbers 0 through 4 to indicate each slot number __________________________NOTE ____________________________ Insert and remove all cartridges at the front of the magazine ____________________________________________________________ MLO 012004 0 1 2 3 4 Magazine Handle Cartridge Slots Figure 4 7 DLT2500 Magazine ...

Page 87: ...azine Before cartridge insertion 1 Grasp the cartridge with the write protect switch on the right side facing you 2 Set the cartridge s write protect switch to the desired position If you want to Then Write to the tape Slide the switch to the right orange indicator is not visible Write protect the tape Slide the switch to the left orange indicator is visible ...

Page 88: ... insert a cartridge into the magazine Figure 4 8 Place the magazine on a flat surface with the slots facing you Each slot is numbered to ensure you are inserting the cartridge correctly in the front of the magazine Usually cartridges are inserted into consecutive slots Insert the cartridge by pushing it into the slot until you hear a click Notice a small metal tab This holds the cartridge in place...

Page 89: ...4 Figure 4 9 Removing a Cartridge from the Magazine 4 10 2 Removing a Cartridge from the Magazine To remove a cartridge from the magazine Figure 4 9 At the front of the magazine where you can see the metal tab next to the slot number press in on the cartridge until it stops and you hear a click Then release The slot has a spring release action ...

Page 90: ...open the door of the mini library Pressing just the Open button also returns the tape to the magazine and opens the door 2 Slide the door all the way to the left 3 Grasp the magazine s handle and pull the magazine out of the mini library 4 10 4 Installing the Magazine into the Mini Library To install the magazine into the mini library open the mini library door by pressing the Open button ________...

Page 91: ...e into the Drive To load the cartridge from the magazine into the drive press the Load Unload button Table 4 5 explains what happens after you press the button Table 4 5 After Loading the Cartridge Stage What Happens 1 The elevator moves to the selected slot 2 The cartridge is then removed from the magazine and placed in the elevator 3 The elevator moves to the drive position and inserts the cartr...

Page 92: ... the display reads LDR RDY The ERR LDR message displays showing a malfunction Press the Load Unload button to reset the mini library and try to clear the error 4 10 8 Opening the Magazine Door The Open button opens the magazine door for inserting or removing the magazine The button is disabled when the key lock is in the locked or disabled position When Then You should A cartridge is not in the dr...

Page 93: ...rive and returns to the magazine The LDR RDY message displays 2 A data cartridge causes the HC message to display frequently The data cartridge may be damaged Back up this data onto another cartridge Discard the old cartridge which may be damaged A damaged cartridge may cause unnecessary use of the cleaning cartridge 3 The HC message still displays after you clean the drive head Your data cartridg...

Page 94: ...Configuring and Operating the DLT2500 Mini Library 4 30 DLT2000 DLT2500 DLT2700 Cartridge Tape Subsytem ...

Page 95: ...unctions 5 8 Magazine 5 9 5 2 Introduction to the Mini Library The mini library option includes a DLT2000 tape drive a media loader and a 7 cartridge removable magazine The same SCSI target controller board controls the tape drive and the media loader The tape drive is always LUN 0 If the controller detects the loader s presence when the system is turned on the loader is presented as a SCSI 2 medi...

Page 96: ...ridge in the next slot is moved from the magazine into the drive and made ready The next slot is empty or the cartridge unloaded was for the last slot in the magazine No cartridge is loaded into the drive 5 3 Configure the DLT2700 This section describes how to configure the DLT2700 including Topic Section Configuration Guidelines 5 3 1 Switchpack Location 5 3 2 Disable Parity Checking 5 3 2 Change...

Page 97: ...Be sure to use a SCSI ID that is unique from any other device or system ID on the SCSI bus The last or only device on the SCSI bus The user must terminate the bus by installing a terminator 5 3 2 Disable Parity Checking To disable parity see your service representative 5 3 3 Change the SCSI ID The user can change the SCSI ID via the pushbutton switch on the mini library rear panel Press the switch...

Page 98: ...2500 DLT2700 Cartridge Tape Subsystem Figure 5 1 shows the location of the SCSI ID pushbutton switch Figure 5 1 Changing the SCSI ID via the Pushbutton Switch SCSI Connector Wire Cable Clamps Pushbutton Switch Fan Power Connector Power Switch Voltage Selection Switch ...

Page 99: ...ine automatically loads into the drive When you copy data to the tape operations stop if one of the following happens Storage capacity of the last tape cartridge is exceeded No tape cartridge is in the next sequential slot in the magazine To lock the DLT2700 subsystem into the enclosure and lock the receiver set the Mode Select key to OCP Disabled The OCP pushbuttons are disabled The following res...

Page 100: ...o w e r O n T a p e I n U s e E j e c t L o a d U n l o a d S l o t S e l e c t Write Protected Loader Fault OPERATOR CONTROL PANEL ZKO 1217 18 DG CURRENT SLOT INDICATORS 0 6 M a g a z i n e Fault 0 1 2 3 4 5 6 U s e Cleaning Tape M a g a z i n e Fault E j e c t L o a d U n l o a d S l o t S e l e c t BUTTON AND INDICATOR AREA OCP LABEL D e n s i t y S e l e c t Compress Bus ID Density 2 6 6 0 10 ...

Page 101: ...leave the receiver unlocked set the Mode Select key to Automatic mode The following results of setting the Mode Select key to Automatic mode are The OCP pushbuttons are enabled SCSI media changer commands are enabled Cartridge are sequentially loaded by the SCSI unload command but the lowest numbered cartridge is not automatically loaded upon magazine insertion Behavior in this mode is modified by...

Page 102: ...eturns to the magazine but the current Slot Select indicator does not advance forward to the next available cartridge ____________________________________________________________ 5 4 4 Service Mode Service mode allows for servicing procedures SCSI test unit ready commands always return not ready For details on controls and indicators and operation see the sections after Section 5 5 in this chapter...

Page 103: ...ng the Density Select button always overrides a host selection A programmable host selection via your operating system The Density Override light is off indicating automatic or host density selection Native default density 10 0 GB for the CompacTape III assuming the Density Select button or the host selection was not used How to Select Density To select density with the DLT2700 using the CompacTap...

Page 104: ...corded 2 6 GB density and you use the Density Select button to select 10 0 GB density the following should happen The 2 6 light remains lit density has not changed yet and the steady light indicates recorded tape density The 10 0 light blinks density change is pending Density Override lights When a write from BOT occurs the following should happen 2 6 turns off 10 0 lights steady Density Override ...

Page 105: ...sity you selected The actual density and Density Override light For example if the actual tape density is 10 0 GB and the selected tape density is 10 0 GB then the light next to 10 0 is on You select the Density Select button and if the actual tape density differs from the density selected 1 The light with the actual density is on steady 2 The light with the selected density blinks 3 Density Overr...

Page 106: ...e tape from the drive to the magazine if a tape is inserted Eject light Green Indicates you can press the Eject button to unload cartridges from the drive to the magazine and open the receiver Lights when a magazine fault has occurred to indicate Eject is the only function available at that time Load Unload button Loads the currently selected cartridge into the tape drive Unloads the cartridge cur...

Page 107: ...pe is rewinding Rapid blinking indicates tape is reading or writing When on steadily indicates a cartridge is in the drive and the tape is not moving When off indicates no cartridge is in the drive Use Cleaning Tape light Orange The read write head needs cleaning See Chapter 3 Magazine Fault light Red Indicates a magazine failure Loader Fault light Red Indicates a loader transfer assembly error or...

Page 108: ... tape is recorded in 2 6 GB format Blinking tape is recorded in another density You selected this density for a write from BOT 6 0 Yellow Indicates tape drive activity as follows On steady tape is recorded in 6 0 GB format Blinking tape is recorded in another density You selected this density for a write from BOT 10 0 Yellow Indicates tape drive activity as follows On steady tape is recorded in 10...

Page 109: ...later all lights are on Within 15 seconds POST of the loader mechanics completes If the Magazine Fault and Loader Fault lights turn off loader POST succeeded If the Magazine Fault and Loader Fault lights stay on loader POST failed 3 A few seconds later the drive controller resets the loader 4 Loader POST starts again If Then POST The Magazine Fault and Loader Fault lights turn off and shortly afte...

Page 110: ...0 DLT2500 DLT2700 Cartridge Tape Subsystem Table 5 3 Loader Power On Self Test cont d Phase What Happens 6 If the subsystem magazine has a cartridge in slot 0 and no cartridge is in the drive these lights should be on Power On Eject Load Unload Slot Select Slot 0 ...

Page 111: ...t available slot After a successful initialization the DLT2700 subsystem automatically selects slot 0 and the Slot Select button becomes active The Load Unload and Eject lights remain on during slot selection 5 8 2 Loading the Cartridge To load the cartridge from the loader into the drive press the Load Unload button Table 5 4 explains what happens after pressing the button Table 5 4 Load Unload F...

Page 112: ...load light must be on before you press the Load Unload button to load or unload a cartridge ____________________________________________________________ If Then You want to unload the cartridge from the drive Press the Load Unload button The Select Slot Load Unload and Eject lights turn off The cartridge unloads from the drive into the magazine However automatic operation now stops and the Select ...

Page 113: ...ve The Slot Select Load Unload and Eject lights are on before any operation begins Press the Eject button to turn off all lights The elevator then returns to its home position and the receiver opens A cartridge is in the drive The Eject and Load Unload lights are on before the operation begins Press the Eject button to turn off both lights and the cartridge unloads from the drive and moves back in...

Page 114: ...urface with the slots facing you Figure 5 4 Each slot is numbered to ensure you are inserting the cartridge correctly in the front of the magazine Usually cartridges are inserted into consecutive slots To insert a cartridge into the magazine 1 Grasp the cartridge with the write protect switch on the right side facing you Figure 5 3 2 Set the cartridge s write protect switch to the desired position...

Page 115: ...ating the DLT2700 Mini Library DLT2000 DLT2500 DLT2700 Cartridge Tape Subsystem 5 21 ORANGE INDICATOR WRITE PROTECTED WRITE Z K O 1 2 1 7 0 4 D G WRITE PROTECT SWITCH ENABLED Figure 5 3 Write Protect Switch on a Cartridge ...

Page 116: ...DLT2000 DLT2500 DLT2700 Cartridge Tape Subsystem 1 2 3 SLOT NUMBERS 0 6 FRONT OF MAGAZINE ZKO 1217 05 DG BACK OF MAGAZINE 0 1 2 3 4 5 6 5 0 1 2 3 4 5 6 NOTE Push tape in until a click is heard 0 1 2 3 4 5 6 Figure 5 4 Inserting a Cartridge into the Magazine ...

Page 117: ...iver To remove the magazine from the receiver first ensure 1 The Power On light is on Figure 5 2 2 The Eject light is on It must be on before you can press the Eject button Then 1 Press the Eject button Figure 5 2 to open the receiver If a tape is loaded in the drive pressing the Eject button also causes the tape to unload 2 Grasp the receiver after it opens Figure 5 6 and gently pull it forward t...

Page 118: ... DLT2500 DLT2700 Cartridge Tape Subsystem 0 1 2 3 4 5 6 0 1 2 3 4 5 6 0 1 2 3 4 5 6 NOTE Push tape in until a click is heard 1 2 3 4 5 SLOT NUMBERS 0 6 FRONT OF MAGAZINE ZKO 1217 06 DG BACK OF MAGAZINE Figure 5 5 Removing a Cartridge from the Front of the Magazine ...

Page 119: ...W r i t e P r o t e c t P o w e r O n U s e E j e c t L o a d U n l o a d S l o t S e l e c t D r i v e F a u l t L o a d F a u l t ZKO 3135 04 DG C l e a n i n g T a p e T a p e I n U s e D e n s i t y 2 6 6 0 1 0 0 C o m p r e s s D e n s i t y S e l e c t O v e r r i d e 1 5 0 Figure 5 6 Receiver Opened ...

Page 120: ...Configuring and Operating the DLT2700 Mini Library 5 26 DLT2000 DLT2500 DLT2700 Cartridge Tape Subsystem ...

Page 121: ...Conditions DLT2500 DLT2700 6 5 6 6 Power Problems 6 7 6 2 Conditions Necessary for Button Operation Be sure to review information in the previous chapters to ensure you are correctly operating the DLT2500 DLT2700 mini library Before you press the Slot Select Load Unload or Eject button on the DLT2500 DLT2700 OCP check for the conditions listed in Table 6 1 and ensure the Power On indicator is on R...

Page 122: ...f the DLT2500 OCP buttons Table 6 1 DLT2500 OCP Button Conditions If you want to First ensure the Then you can press this button Select another slot in the magazine Magazine contains at least two cartridges LDR RDY displays Select Load the selected cartridge into the tape drive Magazine contains at least one cartridge LDR RDY displays Load Unload Return the selected cartridge to its original slot ...

Page 123: ...ntains at least one cartridge Load Unload light is on Load Unload Return the selected cartridge to its original slot in the magazine Load Unload light is on Load Unload Clear a magazine or loader fault Load Unload light is on Magazine Fault or Loader Fault light is on Load Unload Open the receiver or unload the cartridge from the drive and open the receiver Eject light is on Eject 6 3 Backup Opera...

Page 124: ...on as the one shown in Figure 6 1 __________________________Caution___________________________ Do not touch the exposed magnetic tape If the tape leader is not in the correct position use a new cartridge ____________________________________________________________ Be sure the receiver is fully closed and the current slot indicator is on for the starting cartridge Be sure no slots in the magazine a...

Page 125: ...he magazine and the magazine is not defective If you still cannot clear the error call your service representative 6 5 2 DLT2500 Loader Error Description The ERR LDR message tells you the mini library detected an error in the loader transfer assembly In some loader transfer assembly errors the mini library retries the error three times before showing failure All loader errors cause the ERR LDR mes...

Page 126: ... on If you cannot resolve the fault call your service representative Loader Fault This condition most likely requires service from a service representative It is indicated when the Loader Fault light is on 6 6 1 DLT2700 Magazine Fault Cases A magazine fault can occur during any of the following cases 1 A cartridge has been removed from the magazine incorrectly __________________________Note ______...

Page 127: ...l tab is found over an open slot 1 Reinsert the missing cartridge properly by pushing the tab aside and insert cartridge until it snaps into place If no cartridge is needed in this slot push one into the slot and then remove it according to normal procedure Chapter 5 This step is critical to avoid more magazine faults 2 Insert the magazine into the receiver 3 Close the receiver 6 6 1 2 Detecting C...

Page 128: ...ubcode to light Loader Fault indicates errors in the loader transfer assembly controller module or drive The suspected fault location is indicated by the following slot lights Slots 4 and 0 a controller module Slots 5 and 0 a loader transfer assembly Slots 6 and 0 drive __________________________Note _____________________________ Error lights do not blink During hardware failures the controller mo...

Page 129: ...rtridge Tape Subsystem family can automatically update the controller firmware directly from a tape containing the appropriate information The user places the subsystem into firmware Update Mode via the front panel and then simply load a tape that includes the DLT2000 firmware image file The subsystem automatically reads and verifies the tape information has a valid DLT2000 firmware image If the i...

Page 130: ...__________________________________________ 7 2 1 1 Updating Firmware on a Standalone System The user can update the subsystem even when the subsystem is not attached to a SCSI bus that is a standalone system However to do an update the Power On Self Test POST must pass first and to pass POST needs a properly terminated bus The single ended DLT2000 controller module has active terminators Note the ...

Page 131: ...ape DLT2000 DLT2500 DLT2700 Cartridge Tape Subsystem 7 3 Left Side ZKO 1217 17 RGS Right Side 1 3 2 Front Bezel Front Bezel Figure 7 1 DLT2000 Subsystem Connectors TRM PWR TRM ENB Connector SCSI ID Connector Loader Connector ...

Page 132: ... Update Tape To do the firmware update you must have a CompacTape III cartridge with a copy of the firmware image This image must be byte written onto the tape in a 4K block format The image must be copied onto the tape instead of using the backup utility 7 3 1 On UN X Systems The FTP utility can be used to transfer the binary firmware image file onto the UN X system Be sure to specify type image ...

Page 133: ... Drive and Loader Configuration Drive and loader configuration see Updating the Firmware on the DLT2700 Drive and Loader Configuration _________________________ Caution __________________________ Never turn off power if you think the firmware is being updated This can damage the controller ___________________________________________________________ 7 4 1 Updating the Firmware on DLT2000 Drive Only...

Page 134: ...ds Try the procedure again If the drive and controller are not properly communicating you cannot select firmware update 3 Once you have selected the firmware update mode insert a cartridge into the drive which a Temporarily turns off the Tape in Use and Write Protect indicators __________________________Note _____________________________ Calibration and directory processing cause the tape to move ...

Page 135: ...y 5 When the drive code update is complete the drive resets and goes through Power On Self Test POST The process waits until the tape is reloaded at beginning of tape BOT 6 If the firmware image is valid the controller s flash EEPROM memory is automatically updated with the new firmware image The Write Protect and Tape in Use indicators flash again during the controller firmware update ...

Page 136: ...s means a successful update On the DLT2000 the media is placed into the cartridge the door is unlocked and the green Operate Handle indicator is turned on The firmware update cartridge is NOT unloaded this means the update was unsuccessful The subsystem should still be usable but this depends on why the update failed Reasons for failure could be 1 Power failure 2 Bad image on the tape 3 Broken Fla...

Page 137: ...ware update tape 2 The tape does not contain a valid image No update is attempted The Write Protect and Tape In Use indicators do not blink The drive resets and the tape stays loaded to signal the firmware update was unsuccessful The tape contains a valid image but for some reason the reprogramming flash memory fails The controller is probably unusable and needs to be replaced The tape drive reset...

Page 138: ... seconds until the SCSI ID SEL message displays d Press and hold the Load Unload button until the SCSI ID SEL message starts to flash Immediately release the button and then press it again The CODE UPDATE MODE message now displays 3 Press the Open button two times to open the magazine door Load the magazine with the code update tape into the mini library and close the door Wait until the elevator ...

Page 139: ...ape cartridge returns to the magazine The LDR RDY message displays 5 If the code update succeeds the mini library resets itself A magazine scan takes place 7 4 2 1 Interpreting the Results DLT2500 Code Update The following results can occur Table 7 2 Results DLT2500 Code Update If This means And you should The code update cartridge unloads from the drive and loads into the magazine slot from which...

Page 140: ...cartridge from the drive 2 Press the Open button to open the magazine door 3 Remove the magazine and close the door The mini library does an elevator scan 4 Open the door again The message LDR RDY displays 5 Verify you have the valid image for your drive type variant in the magazine Ensure the image copied to the tape cartridge is using a block size of 4096 6 Try the code update procedure again us...

Page 141: ...emove the magazine and close the door The mini library does an elevator scan 4 Open the door again The message LDR RDY displays 5 Rebuild the valid image on a good cartridge 6 Try the code update procedure again using the valid tape image If you still cannot do the update call your service representative A power failure occurs during the code update The drive may be unusable Try unloading the cart...

Page 142: ...To do this a Remove any magazine in the DLT2700 loader receiver and close the receiver b Put the Mode Select key in Service Mode wrench icon c Press the Load Unload button on the operator control panel OCP and hold the button about 6 seconds until the Write Protect indicator blinks This means the DLT2700 subsystem has recognized your request for firmware update mode and is waiting for completion o...

Page 143: ...e update procedure goes faster if the magazine contains only the firmware update cartridge But the procedure still works if other cartridges are present 5 Press the Load Unload button to load the Firmware Update Tape into the drive 6 Once you have selected the firmware update mode the drive a Automatically reads the tape _________________________ Note _____________________________ Calibration and ...

Page 144: ...update cartridge was the only tape cartridge in the magazine If six other cartridges are present the scan takes an extra minute or more 7 4 3 1 Interpreting the Results DLT2700 Code Update Two possible results can occur The firmware update cartridge is unloaded this means a successful update On the DLT2700 the cartridge is unloaded from the drive and into the magazine slot from which it came If an...

Page 145: ... so you can remove the cartridge This shows a successful firmware update The tape is NOT a valid firmware update tape No update is attempted Write Protect and Tape In Use do not blink The tape contains a valid image but for some reason reprogramming of Flash memory fails The controller is probably unusable and needs to be replaced The tape drive resets itself and reruns POST which fails if the Fla...

Page 146: ...Firmware Update From Tape 7 18 DLT2000 DLT2500 DLT2700 Cartridge Tape Subsystem ...

Page 147: ...ransfer phases where the device writes data to the SCSI bus and checked during all information transfer phases where data is read from the bus Parity checking can be disabled Refer to Chapter 2 for details _________________________ Note _____________________________ The SCSI specification referrers to mini libraries as medium changers where as Quantum uses the term min libraries throughout this ma...

Page 148: ... command to any LUN from 1 to 7 Refer to MODE SELECT section in this chapter Unsupported LUNs will be treated as follows If the LUN specified in the IDENTIFY message is invalid the DLT2000 shall accept the Command Descriptor Block CDB There are three cases of what happens next 1 If the command is INQUIRY the target shall return the INQUIRY data with the peripheral qualifier set to 011 indicating t...

Page 149: ...sting ones will be left queued A LOAD command will not generate a Unit Attention for the initiator that issued the command since the transition to ready is synchronous 8 2 5 Behavior Around Power On and SCSI Bus Reset All device SCSI lines shall go to high impedance when the DLT2000 is powered off The DLT2000 will not generate any spurious signals on the SCSI bus at power on Within 5 seconds of po...

Page 150: ...performance that will result ____________________________________________________________ The write data cache shall be written flushed to the media under the following circumstances When WRITE FILEMARKS command is issued with the immediate bit is set to zero When a WRITE 0 FILEMARKS command is issued Data in the cache longer than specified by the value of the Mode Parameter Write Delay Time shall...

Page 151: ...HECK CONDITION 02 A contingent allegiance condition occurred The REQUEST SENSE command should be sent following this status to determine the nature of the event BUSY 08 The target is busy This status is returned whenever the device is unable to accept a command from an otherwise acceptable initiator The initiator should reissue the command at a later time INTERMEDIATE GOOD 10h This status is retur...

Page 152: ...e the initiator cannot perform any operation which would cause tape motion for example write read verify space and so forth These commands will return a CHECK CONDITION status with a DRIVE NOT READY sense key The initiator may however execute commands that do not require access to the media and a GOOD status may be returned These commands are as follows These commands are as follows INQUIRY LOAD U...

Page 153: ...the bus which most likely would result in undetected data corruption On properly configured SCSI buses parity errors should be extremely rare If any are detected they should be quickly addressed by improving the configuration of the SCSI bus A well configured SCSI system in a normal environment should be virtually free of bus parity errors Bus parity errors cause the drive to either retry the oper...

Page 154: ...ode In Out Description Section 06 Out ABORT ABORT 06h 0D Out ABORT TAG ABORT TAG 0Dh 0C Out BUS DEVICE RESET BUS DEVICE RESET 0Ch 0E Out CLEAR QUEUE CLEAR QUEUE 0Eh 00 In COMMAND COMPLETE COMMAND COMPLETE 00h 04 In DISCONNECT DISCONNECT 04h 01 Both EXTENDED MESSAGE SDTR only and wide Data Transfer Request See note ExtENDED MESSAGE 01h 08 FF Both IDENTIFY IDENTIFY 80h FFh 05 Out INITIATOR DETECTED ...

Page 155: ... to the BUS FREE state The drive then executes a hard reset which leaves it as if a Bus Reset had occurred All data in the write buffer will be flushed to the media CLEAR QUEUE 0Eh This message clears all I O processes for all initiators A Unit Attention condition will be generated for all other initiators that had outstanding I O processes with Additional Sense Code ASC of Command Cleared by Anot...

Page 156: ...xtended Message Format The Extended Message Length specifies the length of the Extended Message plus the number of additional parameter bytes that are to follow The length does not include bytes 0 and 1 A value of zero for the Extended Message Length indicates 256 bytes to follow Possible Extended Message codes are 00h MODIFY DATA POINTER not supported 01h SYNCHRONOUS DATA TRANSFER REQUEST 02h Res...

Page 157: ...age mechanism LINKED COMMAND COMPLETE 0Ah This message is sent from a target to an initiator to indicate that the execution of a linked command with the Flag bit zero is complete and that status has been sent The initiator then sets the pointers to the initial state for the next command When received as a target it is handled as an illegal message the drive enters the MESSAGE IN phase and returns ...

Page 158: ... a selection the drive proceeds to the COMMAND phase provided ATN does not continue being asserted The NO OP message is ignored by the tape drive RESTORE POINTERS 03h This message is sent from a target to direct the initiator to restore the most recently saved pointers for the currently attached logical unit Pointers to the command data and status locations for the logical unit are restored to the...

Page 159: ...he SDTR message has the following format Byte 0 Byte 1 Byte 2 Byte 3 Byte 4 Extended Message Identifier 01h Length 3 Message Code 1 SDTR msg Transfer Period min 50 32h Transfer Req Ack Offset max 15 Figure 8 2 SDTR Extended Message Format _________________________ NOTE ____________________________ The tape drive supports initiating synchronous transfer negotiations with the host but this feature i...

Page 160: ...of the Command Descriptor Block contains the Flag and Link bits Use of these bits is entirely initiator dependent Setting the Link bit provides an automatic link to the next command bypassing the usual ARBITRATION SELECTION and MESSAGE OUT phases which would normally occur between commands All other bits in the Control Byte are considered to be reserved ...

Page 161: ...B LOAD UNLOAD 8 4 5 2B LOCATE 8 4 6 4C LOG SELECT 8 4 7 4D LOG SENSE 8 4 8 15 MODE SELECT 8 4 9 1A 5A MODE SENSE 8 4 10 1E PREVENT ALLOW MEDIUM REMOVAL 8 4 11 08 READ 8 4 12 05 READ BLOCK LIMITS 8 4 13 3C READ BUFFER 8 4 14 34 READ POSITION 8 4 15 1C RECEIVE DIAG RESULTS 8 4 16 17 RELEASE UNIT 8 4 17 03 REQUEST SENSE 8 4 18 16 RESERVE UNIT 8 4 19 01 REWIND 8 4 20 1D SEND DIAGNOSTIC 8 4 21 11 SPACE...

Page 162: ...d If the Immediate bit is set to zero the target will not return status until the selected operation has completed If the bit is set to one status will be returned as soon as the operation has been initiated Long The Long bit controls the distance to be erased If the bit is set filler and EOD blocks will be written if needed and then the entire rest of the tape will be erased _____________________...

Page 163: ... condition before the drive reports CHECK CONDITION status the target will perform the INQUIRY and will not clear the UNIT ATTENTION condition EVPD The DLT2000 implements the Vital Product Data pages option on LUNs 0 and the optional medium loader LUN Page Code There are three Vital Product Data pages implemented 00h Supported Vital Product Data pages 80h Unit Serial Number page C0h Code Build Inf...

Page 164: ...Re 8 15 Vendor ID Quantum 16 31 Product ID DLT2000 32 35 Product Revision Level hhss 36 55 Vendor Unique bytes Figure 8 5 INQUIRY Response Data Peripheral Qualifier The tape drive returns one of the following values in this field 000b The indicated Peripheral Device Type is connected to the logical unit 001b The indicated Peripheral Device Type is not connected to the logical unit however the tape...

Page 165: ...ata Format Set to 2 Inquiry Data in SCSI 2 format Byte 4 Additional Length The tape drive sets this field to indicate the number of additional bytes of INQUIRY Response Data available Byte 6 All bits set to zero except MChngr Set to 1 if an integrated Media Loader is present and EEROM parameter EnbIngMedChgr is set to 1 This SCSI 3 bit indicates that the Read Element Status and Move Medium command...

Page 166: ...______Note _____________________________ If a 5 cartridge media loader is attached to the tape drive the Product ID will indicate DLT2500 instead of DLT2000 If a 7 cartridge media loader is attached to the tape drive the Product ID will indicate DLT2700 instead of DLT2000 ____________________________________________________________ Product Revision Level This field contains four bytes of ASCII dat...

Page 167: ...mware Version 48 Media Loader Hardware Version 49 Media Loader Mechanical Version 50 Media Loader Present flag 51 Module Revision 55 Figure 8 6 INQUIRY Vendor Unique Bytes Definition Vendor Specific Inquiry Bytes To more precisely identify the product and the installed firmware additional information is available Released Flag This flag differentiates between released and test versions of firmware...

Page 168: ...odule Revision A four byte ASCII string represents the revision of the ECM module 8 4 4 3 Vital Product Data Pages The following figures show the information in the supported Vital Product Data Pages Bit 7 6 5 4 3 2 1 0 0 Peripheral Qualifier Peripheral Device Type Byte 1 Page Code 00h 2 Reserved 3 Page Length 3 more bytes 4 00h this page 5 80h Unit Serial Number page 6 C0h Firmware Build Info pag...

Page 169: ...ottom of the DLT2000 It can be found on the bar code label The serial number is returned in ASCII Bit 7 6 5 4 3 2 1 0 0 Peripheral Qualifier Peripheral Device Type Byte 1 Page Code C0h 2 Reserved 3 Page Length 20h 4 5 Servo Firmware Checksum 6 7 Servo EEPROM Checsum 8 11 Read Write Firmware Checksum 12 35 Read Write Firmware build Data Figure 8 9 Firmware Build Information page VU The checksums ar...

Page 170: ...sponse The DLT2000 controller generates INQUIRY Data on the Medium Changer LUN that is very similar to that of the tape drive LUN The key differences are Peripheral Device Type is set to 8 for SCSI 2 Medium Changer Product ID bytes are set to DLT2500 or DLT2700 for 5 or 7 cartridge loader respectively ...

Page 171: ...when a media loader is attached If none of the media loader specific commands has been issued then the device will operate in the sequential mode of operation Once a media loader specific command has been issued the sequential mode of operation is disabled and the UNLOAD command becomes a no op If the device is still in the default sequential mode of operation and an UNLOAD command is received by ...

Page 172: ...cartridge is inserted the media is automatically loaded and positioned by the drive at BOM Logically the drive will be positioned at the beginning of Partition 0 If the Load bit is set and the media is already loaded no action is taken If the media was unloaded but the cartridge was not removed a Load will cause it to be loaded to BOP again and made ready If the Load bit is zero and media is loade...

Page 173: ...mmand can be used to position back to the same logical position for high performance restore operations of particular blocks of data BT The Block Type bit indicates how the Block Address field is interpreted For the DLT2000 products SCSI Logical Block addresses are always returned that is setting the BT bit does not affect the values returned The first recorded object block or filemark is at addre...

Page 174: ...ader with information about log page format parameters and supported pages The command specific bits are used as follows PCR If Parameter Code Reset bit is set to 1 and parameter list length is 0 all accumulated values of page code 2 3 and 32 are set to zero and all threshold values are set to default If PCR is set to 1 and the Parameter List Length Field is not zero the command will be terminated...

Page 175: ...modified When the PC field is set to 11b and the Parameter List Length field is 0 then all Current Cumulative Values will be reset to the Default Cumulative Values This is equivalent to clearing all log pages which can be cleared Parameter List Length This field specifies the length in bytes of the LOG SELECT parameter list to be transferred from the initiator to the target during the DATA OUT pha...

Page 176: ...arameter value as the log parameters The following pages can be cleared in this manner Page Code Page Description 02h 03h 32h Write Error Counter Page Read Error Counter Page Compression ratio page Figure 8 14 Clearable Log Pages If multiple pages are sent during this DATA OUT phase they must be sent in ascending order according to page code Otherwise the command will terminate with a CHECK CONDIT...

Page 177: ...erved Page Code Byte 1 Reserved 2 MSB Page Length 3 LSB Log Parameters 0 MSB Parameter Length 1 LSB 2 DU DS TSD ETC TMC Rsvd LP 3 Parameter Length Byte 4 MSB 5 Parameter Value 6 7 LSB Figure 8 15 Read Write Error Log Select Page Format Page Code The Page Code specifies what Log Page this LOG SELECT command is for Page Length The page length specifies the total number of bytes contained in this log...

Page 178: ...and TSD Saving parameters is not supported they both should be set to 1 If the DS and or TSD are set to zero the command is terminated with CHECK CONDITION status with the sense key set to ILLEGAL REQUEST with the additional sense code set to INVALID FIELD IN PARAMETER LIST ETC Enable Threshold Comparison When set to 1 the drive will perform a comparison with threshold values once the cumulative v...

Page 179: ...rameter The following conditions constitute errors in the parameter block that will cause the drive to return CHECK CONDITION with the sense data set to ILLEGAL REQUEST and additional sense code INVALID FIELD IN PARAMETER LIST If a page header is received with unsupported page codes Incorrect log page length is specified in the page header An illegal parameter code within a valid page code Paramet...

Page 180: ... that the parameter data requested from the device will start with the parameter code specified in the Parameter Pointer field and return the number of bytes specified in the Allocation Length field in ascending order of parameter codes from the specified log page A PPC bit of zero and a Parameter Point field of zero causes all available parameter data for that page code to be returned to the init...

Page 181: ...8 LOG Page Control Definitions The Default Threshold Values are the maximum values that each parameter can attain The Current Cumulative Values are the values computed since the last reset of the device either by power cycling BUS DEVICE RESET or SCSI RESET The Default Cumulative Values are the values to which each parameter gets initialized on a reset condition as described previously Default val...

Page 182: ...erminate the command with CHECK CONDITION status The sense key is set to ILLEGAL REQUEST and the additional sense code is set to INVALID FIELD IN CDB __________________________Note _____________________________ Parameters within a page are always returned in ascending order according to parameter code ____________________________________________________________ Allocation Length The Allocation Len...

Page 183: ...Page Page 0 When page 0 is requested the 4 byte page header is returned followed by the pages supported in ascending order one byte for each Bit 7 6 5 4 3 2 1 0 0 Reserved Page Code 00h Byte 1 Reserved 2 MSB Page LENGTH 05H 3 LSB 4 00h 5 02h 6 03h 7 07h 8 32h Figure 8 20 Supported Pages Page Format ...

Page 184: ... DU DS TSD ETC TMC Rsvd LP 3 Parameter Length Byte 4 MSB Parameter Value 11 LSB Figure 8 21 Read Write Error Log SENSE Page Format Page Code The Page Code echoes the page code that was specific in the LOG SENSE CDB Page Length The Page Length specifies the total number of bytes contained in this log page not including the four bytes of the heads For example if PPC bit is zero and parameter pointer...

Page 185: ...his bit is set by the drive when accumulated values reach maximum This is also returned set if the host set the bit in the last LOG SELECT command The default is zero _________________________ Note _____________________________ For parameter types other than threshold and cumulative values this bit is always zero ___________________________________________________________ DS Disable Save Saving pa...

Page 186: ...parameter code criteria is met ____________________________________________________________ Code Basis of Comparison Every update of the cumulative value equal to threshold value 00b 01b 10b 11b Cumulative value Cumulative value not equal to threshold value Cumulative value greater than threshold value Figure 8 23 Threshold Met Criteria LP List Parameter This bit will always be set to zero as we t...

Page 187: ...eater than the Parameter Number specified in the CDB Parameter Code Parameter code values are assigned from 0 to 27 where 0 would be the oldest event stored and the highest parameter code returned would be the most recent event Hex ASCII String The text of the parameter includes a Packet which is a value from 0 to 255 This internal number is assigned when the packet is written into EEROM Zero is n...

Page 188: ...ription 00h Read Compression Ratio 100 01h Write Compression Ratio 100 02h MBytes Transferred to Host 03h Bytes Transferred to Host 04h MBytes Read from Tape 05h Bytes Read from Tape 06h MBytes Transferred from Host 07h Bytes Transferred from Host 08h MBytes Written to Tape 09h Bytes Written to Tape Figure 8 25 Parameter Codes Supported Bit 7 6 5 4 3 2 1 0 0 Reserved Page Code Byte 1 Reserved 2 MS...

Page 189: ...This bit is always zero DS Disable Save Saving parameters is not supported this bit will always be set to 1 TSD Target Save Disable Saving parameters is not supported this bit will always be set to 1 ETC Enable Threshold Comparison Threshold checking is not supported on this page this bit is always a zero TMC Threshold Met Criteria Always a zero LP List Parameter This bit will always be set to zer...

Page 190: ...is bit is always a zero TMC Threshold Met Criteria Always a zero LP List Parameter This bit will always be set to zero as we treat the parameter codes as data counter Counter Value These parameter codes provide a count of the number of bytes transferred since the current tape cartridge was inserted or since the last time the counters were reset via a MODE SELECT command Parameter codes 02 and 03 r...

Page 191: ...tor to the buffer Parameter code 06 reports the number of full megabytes transferred Parameter code 07 reports the number of bytes less than a full megabyte that has been transferred Multiplying the counter returned for parameter 06 by 1 048 576 and then adding the counter value returned for parameter 07 will give the actual total bytes transferred from the initiator to the buffer Parameter codes ...

Page 192: ...ve to the host s preferred configuration The drive always powers up with its default configurations set This is also true if the drive receives a BUS DEVICE RESET message or a hard reset through the RST line on the SCSI bus PF The Page Format bit indicates that the data sent by the host after the MODE SELECT header and block descriptors complies with the definition of pages in the SCSI 2 specifica...

Page 193: ... Byte 1 Media Type 2 WP Buffered Mode Speed 3 Block Descriptor Length 08h Block Descriptor 0 Density Code 1 MSB 2 Number of Blocks 000000h 3 LSB Byte 4 Reserved 5 MSB 6 Block Length 7 LSB Page Descriptor 0 PS 0 0 Page Code Byte 1 Additional Length 2 Page Defined or Vendor Unique Parameter Bytes Figure 8 30 MODE SELECT Parameter List Media Type This field is ignored for Mode Select parameter WP Thi...

Page 194: ...bled not having buffered mode enabled will cause some capacity loss depending on compression ratios This is because the block packing feature is essentially disabled by turning off buffered mode If this field is greater than 1 the command will be rejected with a Check Condition with a Sense Key of ILLEGAL REQUEST Speed The tape drive supports only one speed the default speed Block Descriptor Lengt...

Page 195: ...y supported by the specific media For CompacTape III it is 20 GB with compression ___________________________________________________________ Number of Blocks This MODE SENSE field will be sent as zero indicating that all of the remaining logical blocks on the tape will have the medium characteristics specified by the block descriptor Block Length This specifies the length in bytes of each logical...

Page 196: ...is reserved For the MODE SENSE command a Parameters Savable PS bit of one indicates that the page can be saved in nonvolatile memory by the drive If the PS bit is zero the supported parameters cannot be saved Saveable pages are not supported Additional Page Length This indicates the number of bytes in that page However the value does not include bytes 0 and 1 The length is returned on MODE SENSE a...

Page 197: ...ntrol Mode Page 0Ah A report log exception condition RLEC bit of one specifies the target shall report log exception conditions An RLEC bit of zero specifies the target shall not report log exception conditions Page Code The Page Code identifies the type of MODE SELECT page being transferred This is the Control Mode Page The valid value for Page Code is 0Ah Page Length The Page Length indicates th...

Page 198: ...gorithm Modifier This field must be 0 QErr Queue Error This bit must be 0 DQue Disable Queuing This bit must be 0 EECA Enable Extended Contingent Allegiance The DLT2000 does not support extended contingent allegiance so this bit must be 0 RAENP Ready AEN Permission The DLT2000 does not support asynchronous event notification AEN so this bit must be 0 UAAENP Unit Attention AEN Permission The DLT200...

Page 199: ...1 Reserved DDE LSB 12 15 2 MSB 3 MSB 4 7 8 Figure 8 33 Data Compression Page 0Fh Page Code The Page Code identifies the type of MODE SELECT page being transferred This is the Data Compression Page The valid value for the Page Code is 0Fh Page Length The Page Length indicates the number of bytes in the Data Compression Page that follow this byte The valid value for this byte is 0Eh DCE Data Compres...

Page 200: ...DCE bit byte 02 bit 7 is 1 The only value currently supported for this field is 10h __________________________Note _____________________________ Specifying a value other than 10h for this field causes the DLT2000 to return Check Condition status with the sense key set to Illegal Request 5h ____________________________________________________________ Decompression Algorithm The Decompression Algori...

Page 201: ...VC SOCF RBO EEG SEW Reserved Buffer Size at Early Warning optional DBR 0 CAF Reserved 1 MSB Gap Size BIS Write Buffer Full Ratio REW Select Data Compression Algorithm EOD Defined 2 MSB Read Buffer Empty Ratio LSB 3 Write Delay Time 4 5 6 7 8 9 10 11 12 13 14 15 Figure 8 34 Device Configuration Page Format In this page only the Write Delay Time and Select Data Compression Algorithm parameters are c...

Page 202: ...n cause data to be written sooner than the Write Delay time would indicate The Write Delay Time defaults to 200 C8h This causes the buffer to be flushed in 20 seconds Maximum value is 6500 1964h and the minimum is 15 0Fh This represents delays from almost 11 minutes down to 1 5 seconds Values between 0 and 15 on a MODE SELECT are rounded down to 0 This causes the data to go straight to the media w...

Page 203: ...at EW is not supported and must be zero Select Data Compression Algorithm One enables data compression a zero disables it The front panel setting will override what is specified in the MODE SELECT but no error will result If the front panel is returned to automatic mode the value from the last MODE SELECT command will determine whether compression will be used or not ...

Page 204: ... Reserved 2 Bus Inactivity Limit MSB LSB Maximum Burst Size Reserved 3 Reserved MSB LSB 4 5 6 7 8 9 10 11 12 13 14 15 Figure 8 35 Disconnect Reconnect Page Format In this page only the Maximum Burst Size parameter is changeable The following parameters in this page are supported Maximum Burst Size This value specifies the maximum amount of data that will be transferred without disconnecting A valu...

Page 205: ... not attempt to disconnect once the data transfer of a command has started until all data the command is to transfer has been transferred 10b Reserved 11b A target does not attempt to disconnect once the data transfer of a command has started until the command is complete Figure 8 36 Data Transfer Disconnect Control If DTDC is non zero and the maximum burst size is non zero the DLT2000 returns CHE...

Page 206: ...titions are supported this field must be zero Additional Partitions Defined The field specifies the number of additional partitions to be defined for the tape based on the settings of the SDP and IDP bits The maximum allowed is the value returned in the Maximum Additional Partitions field Since only one partition is supported this field must be zero Option Flags FDP Fixed Data Partitions bit must ...

Page 207: ...ameter is changeable If PER is set Check Conditions will be created with Sense Key of Recovered Error and VU Sense Data detailing the cause Normally these events should be rare and only occur if the recovered write or read retry rates reach excessive levels Option Flags TB The Transfer Block when not fully recovered function is not supported EER The Enable Early Recovery function is always enabled...

Page 208: ...ystem Read Retry Count This field reports the maximum number of rereads that are done before declaring an unrecoverable error Write Retry Count This field reports the maximum number of overwrite retries that will be performed before declaring an unrecoverable error ...

Page 209: ...ct command It has the following format 0 PS 0 Page Code Additional Page Length ASCII String of parameter name and value 1 2 Figure 8 39 EEROM Vendor Unique Page Format The ASCII string has a parameter name followed by one or more space characters a parameter value and an ASCII line feed or null character When the string is parsed the parameter value will be interpreted as indicated in the followin...

Page 210: ...f on powerup reset 1 Compression defaulted to on on powerup reset DEFFIXEDBLKLEN ASCII Decimal 0 0 8 Default fixed block size ENBINQMEDCHGR ASCII Binary 0 0 1 0 disable media changer bit 1 enable media changer bit in byte 6 of inquiry data LOADERLUN ASCII Decimal 1 0 1 1 7 LUN to report media loader device on REWINDONRESET ASCII Binary 1 0 1 0 Do not rewind on Bus Reset or BDR msg Caution May have...

Page 211: ...er FOURLAMPMODEL ASCII Binary 0 1 1 If turned on front panel SELECT button can only select 2 6 GB 10 0 GB or Compress done with 10 0 GB only PROTECTDIRONWP ASCII Binary 0 0 1 To protect tape directory if the cartridge write protect switch is in write protect position ENACLNGLTRPT ASCII Binary 1 0 1 To report error status if cleaning light is on LONGXPORTPAGE ASCII Binary 1 0 1 To report 18 or 6 by...

Page 212: ...SCII Binary 0 0 1 To make variable Read command handled as if the SILI bit is set if set CACHETMS ASCII Decimal 0 0 1 0 1 Don t cache filemarks unless Imm bit is 1 2 Cache if not 2 in a row unless Imm bit is 1 3 Always cache filemarks LDRCYCLERESET ASCII Binary 0 0 1 To cause the first cartridge to be loaded if unloading the last cartridge when the loader product is operated in sequential mode if ...

Page 213: ...n EEROM vendor unique page that will modify the VENDORID parameter to XXXYY 0 0 0 Page Code 3EH Page Length 0FH v 76H 10 or 00H 1 e 65H 11 2 n 6EH 12 3 d 64H 13 4 o 6FH 14 5 r 72H 15 6 i 69H 16 7 d 64H 8 20H 9 X 58H X 58H X 58H Y 59H Y 59H LF 0AH Figure 8 40 EEROM Vendor Unique Page Example 1 ...

Page 214: ...n EEROM vendor unique page that will modify the FORCEDENSITY parameter to 1 0 0 0 Page Code 3EH Page Length 0FH F 46H 10 or 00H 1 O 4FH 11 2 R 52H 12 3 C 43H 13 4 E 45H 14 5 D 44H 15 6 E 45H 16 7 N 4EH 8 S 53H 9 I 49H T 54H Y 59H 20H 1 31H LF 0AH Figure 8 41 EEROM Vendor Unique Page Example 2 ...

Page 215: ...ameters Page Parameter Default Minimum Maximum Header Buffered Mode Device Specific Byte 1 0 1 Block Descriptor Length 08h 00h 08h Block Descriptor Block Length 2 6 GB and 6 0 GB mode 10 0 GB and 20 0 GB mode 0 0 0 0 40000h FFFFFFh Read Write Error Recovery 01h PER Bit 0 0 1 Control Mode 0Ah RLEC 0 0 1 Data Compression 0Fh DCE 1 0 1 Disconnect Reconnect 02h Maximum Burst Size 0080h 0000h FFFFh Dis...

Page 216: ...ion Code 1Ah Logical Unit Number Reser DBD Reserved Byte PC Page Code Reserved Allocation Length Unused Flag Link 4 1 Reserved 2 3 4 5 Figure 8 42 MODE SENSE CDB 6 The DLT2000 products also support the 10 byte MODE SENSE which is required to request the VU EEROM Parameter page because of the large amount of data that needs to be passed back MODE SENSE 10 can be used to retrieve the other pages as ...

Page 217: ...ptor Data If set then the Block Descriptor information is not returned PC The Page Control field indicates the type of page parameter values to be returned to the host as shown in the following table PC Description 0 0 1 1 0 1 0 1 Report Current Values Report Changeable Values Report Default Values Report Saved Values Figure 8 44 MODE SENSE Page Control Definition The Additional Page Length field ...

Page 218: ...llocation Length The Allocation Length field specifies the number of bytes that the host has allocated for returned MODE SENSE data An Allocation Length of zero means that the drive will return no MODE SENSE data This is not considered an error and GOOD status is returned ...

Page 219: ... 6 5 4 3 2 1 0 Byte 0 Sense Data Length 1 Media Type 2 WP Buffered Mode Speed 0 3 Block Descriptor Length 08h LSB Figure 8 45 MODE SENSE 6 Data Header The MODE SENSE 10 data contains an 8 byte header followed by one 8 byte block descriptor followed by zero or more variable length pages The MODE SENSE 10 data header format is as follows Bit 7 6 5 4 3 2 1 0 0 MSB Byte 1 Mode Sense Data Length LSB 2 ...

Page 220: ...ode Byte 1 Additional Page Length 2 Page Defined or Vendor Unique Parameter Bytes Figure 8 48 MODE SENSE Page Descriptor Data Length The Sense Data Length specifies the length in bytes of the following MODE SENSE data that is available to be transferred during DATA IN phase The Sense Data Length does not include itself Media Type This field indicates the media type The value is as follows 00h Unkn...

Page 221: ...lt speed Block Descriptor Length This specifies the length in bytes of all the block descriptors Since the drive only allows one block descriptor this value will be 8 Density Code This field matches the current density of the media or zero if the density is unknown 00h use default density 0Ah 6667 bpi MFM serial cart tape X3B5 86 199 Read only CompacTape 16h 10000 bpi MFM serial cart tape X3 193 1...

Page 222: ... bytes of each logical block transferred over the SCSI bus A block length of zero indicates that the length is variable as specified in the I O command Any other value indicates the number of bytes per block that will be used for read write and verify type commands that specify a Fixed bit of 1 fixed block mode ...

Page 223: ... 10h Device Configuration Both 02h Disconnect Reconnect Both 01h Error Recovery Page Both 11h Medium Partition Both 3Eh EEPROM parameter Both 3Fh All Pages Sense Figure 8 49 MODE SENSE Pages Supported PS Bit A Parameters Savable PS bit of one indicates that the page can be saved in nonvolatile memory by the drive If the PS bit is zero the supported parameters cannot be saved Saveable pages are not...

Page 224: ...ode The Page Code identifies the type of MODE SENSE page being transferred The value returned for the Page Code is 0Ah Control Mode Page Page Length The Page Length indicates the number of bytes in the Control Mode Page that follow this byte The value returned for this byte is 06h RLEC Report Log Exception Condition The RLEC bit indicates whether the DLT2000 should return Check Condition status wi...

Page 225: ...RAENP Ready AEN Permission The DLT2000 does not support asynchronous event notification AEN so the value returned for this field is 0 UAAENP Unit Attention AEN Permission The DLT2000 does not support asynchronous event notification so the value returned for this field is 0 EAENP Error AEN Permission The DLT000xt does not support asynchronous event notification so the value returned for this field ...

Page 226: ...tion MSB LSB RSmk AVC SOCF RBO EEG SEW Reserv ed Buffer Size at Early Warning optional PS 0 CAF Reserved 1 Gap Size BIS Write Buffer Full Ratio MSB REW Select Data Compression Algorithm DBR 2 Read Buffer Empty Ratio LSB EOD Defined 3 Write Delay Time 4 5 6 7 8 9 10 11 12 13 14 15 Figure 8 51 Device Configuration Page Format PS Saving parameters is not supported and will be zero CAP CAF Active Form...

Page 227: ... defaults to 200 C8h This causes the buffer to be flushed in 20 seconds Maximum value is 6500 1964h and the minimum is 15 Fh This represents delays from almost 11 minutes down to 1 5 seconds Byte 8 DBR set to 0 Data buffer recovery not supported BIS set to 1 Block Identifiers Supported in media format RSmk set to 0 Setmarks not supported AVC set to 0 SOCF set to 0 RBO set to 0 REW set to 0 Do not ...

Page 228: ...12 15 2 MSB 3 MSB 4 7 8 Figure 8 52 Data Compression Page PS Parameters Savable The Parameters Savable bit indicates if the MODE SENSE parameter data contained in this page is savable The DLT2000 does not support this feature The value returned for this bit is 0 Page Code The Page Code identifies the type of MODE SENSE data being transferred The value returned for this field is 0Fh Data Compressio...

Page 229: ...ta Decompression Enable bit indicates whether data decompression is enabled or disabled as follows 0 Data decompression is disabled 1 Data decompression is enabled When the DLT2000 reads compressed data from tape it automatically decompresses the data before sending it to the initiator Therefore the value returned for this bit is always 1 data decompression enabled RED Report Exception on Decompre...

Page 230: ...vity Limit MSB LSB Maximum Burst Size Reserved 3 Reserved MSB LSB 4 5 6 7 8 9 10 11 12 13 14 15 Figure 8 53 Disconnect Reconnect Page Format The following parameters in this page are supported Maximum Burst Size This value specifies the maximum amount of data that will be transferred without disconnecting A value of zero sets no limit This value is in units of 512 bytes For example a value of 8 me...

Page 231: ...ional partitions are supported this field will be zero Additional Partitions Defined The field specifies the number of additional partitions to be defined for the tape based on the settings of the SDP and IDP bits The maximum allowed is the value returned in the Maximum Additional Partitions field Since only one partition is supported this field will be zero Option Flags FDP The Fixed Data Partiti...

Page 232: ... 10 11 Figure 8 55 Error Recovery Page Format Option Flags TB The Transfer Block when not fully recovered function is not supported EER The Enable Early Recovery function is always enabled PER The Post Error bit turns on reporting of Check Condition to report recovered read write errors The default setting of this bit is off DTE The Disable Transfer on Error feature is not supported so this bit wi...

Page 233: ...2000 SCSI Interface DLT2000 DLT2700 Cartridge Tape Subsystem 8 87 Write Retry Count This field reports the maximum number of overwrite retries that will be performed before declaring an unrecoverable error ...

Page 234: ...If a 6 byte MODE SENSE command is used to retrieve the EEROM parameter page the data returned is as follows Send a 10 byte MODE SENSE command to get the Parameter List The data returned by the 10 byte MODE SENSE command for the EEROM page is in the form of a MODE SENSE 10 data header followed by block and page descriptors The data in the page descriptor is organized in the form of a parameter head...

Page 235: ...t panel is effectively disabled and the UNLOAD command will not unload the media or the cartridge The Prevent Allow status in the device is maintained separately for each initiator When the Prevent bit is set to zero then the Prevent state corresponding to that initiator is cleared Only when all initiators have cleared their Prevent state are the Unload button and Unload commands enabled again By ...

Page 236: ... the Transfer Length specifies the number of blocks to be transferred to the initiator This is valid only if the logical unit is currently operating in Fixed Block mode When the Transfer Length is zero no data is transferred and the current position on the logical unit is not changed A successful READ with the Fixed bit set to one transfers current block length Transfer Length bytes of data to the...

Page 237: ... the Filemark EOM side If the drive detects EOD during the READ the drive will return a CHECK CONDITION status Within the Sense data the Valid bit is set and the Sense Key field is set to BLANK CHECK The EOM bit may be set if the drive determines that the tape is positioned past the PSEN marker The information fields contain the residue count The Additional Sense Code and Additional Sense Code Qua...

Page 238: ... The command does not reflect the currently selected block size only the available limits MODE SENSE returns the current block size Bit 7 6 5 4 3 2 1 0 0 Reserved MSB Maximum block length Byte LSB Minimum block length 0001h 1 MSB LSB 2 3 4 5 Figure 8 59 READ BLOCK LIMITS Data Maximum Block Length This field indicates the maximum block size The device supports a maximum block length of 16 777 215 b...

Page 239: ...sting the drive s data buffer and the SCSI bus integrity Mode The drive supports the following values within the field If any nonsupported value is set the drive terminates the command with a CHECK CONDITION status and an ILLEGAL REQUEST sense key set Mode Description Combined Header and Data Data Descriptor 000b 010b 011b Figure 8 61 READ BUFFER Modes Supported Buffer ID Offset The drive only sup...

Page 240: ...re 8 62 READ BUFFER Data Head Available Length The Available Length field specifies the total number of data bytes available in the target s buffer This number is not reduced to reflect the allocation length nor is it reduced to reflect the actual number of bytes written using the WRITE BUFFER command Following the READ BUFFER header the target will transfer data from its data buffer 8 4 14 2 Data...

Page 241: ...DLT2000 SCSI Interface DLT2000 DLT2700 Cartridge Tape Subsystem 8 95 Bit 7 6 5 4 3 2 1 0 0 Offset Boundary 0Ch Byte 1 MSB 2 Buffer Capacity 3 4 LSB Figure 8 63 READ BUFFER Descriptor ...

Page 242: ...d uses this identifier to position back to this same logical position in a high performance fashion BT The Block Type bit indicates how the position is interpreted Since this device uses the same logical block address whether this bit is set or not the setting of BT is ignored The logical block address values include all recorded objects blocks and filemarks __________________________Note ________...

Page 243: ... Reserved Number of Blocks in Buffer Reserved 1 Partition Number MSB Last LSB Number of Bytes in Buffer 2 3 MSB LSB 4 MSB LSB 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 Figure 8 65 READ POSITION Data Format The BOP and EOP bits will be set as appropriate The Block Position Unknown BPU bit is never set since the setting of the BT bit in the Read Position CDB does not affect the block address values re...

Page 244: ...address associated with the current physical position the next block to be transferred to the media and from the target s buffer If the buffer is empty or has only a partial block the same value as First Block Location will be reported The first block or filemark written onto the media is at address zero Number of Blocks in Buffer The number of data blocks in the target s buffer Number of Bytes in...

Page 245: ...o the initiator after completion of a SEND DIAGNOSTIC command The following data will be returned by this command A REQUEST SENSE command should be issued to obtain more detailed information following a check condition on a SEND DIAGNOSTIC command Bit 7 6 5 4 3 2 1 0 0 Byte Controller Present flag 1 Controller Error flag 2 Drive Present flag 3 Drive Error flag 4 Media Loader Present flag 5 Media L...

Page 246: ...option for RELEASE UNIT allows an initiator to release a logical unit that was previously reserved using the third party reservation option If the third party 3rdPty bit is zero then the third party release option is not requested If the 3rdPty bit is one the drive is released if it was originally reserved by the same initiator using the third party reservation option and if the device is the same...

Page 247: ...e Key Additional Sense Code and Additional Sense Code Qualifier The positional information provided reflects the logical position of the drive The drive returns information based on the nondiagnostic data still in its buffer as well as the data on tape REQUEST SENSE does not cause the drive to flush its buffered data to tape Therefore if the host requires the exact physical positioning of the medi...

Page 248: ...d Sense Key 3 MSB 4 5 Information Bytes 6 LSB Byte 7 Additional Sense Length 8 MSB 9 10 Command Specific Information Bytes 11 LSB 12 Additional Sense Code 13 Additional Sense Code Qualifier 14 Sub Assembly Code 15 SKSV C D Reserved BPV 16 MSB 17 Field Pointer LSB 18 Internal Status Code VU 19 MSB 20 Tape Motion Hours LSB 21 MSB 22 23 Power On Hours 24 LSB Figure 8 70 REQUEST SENSE Data ...

Page 249: ...k This bit indicates that the current command has read a Filemark EOM This bit indicates that an End of Medium condition End of Partition or Beginning of Partition exists The warning is also given by setting the Sense Key to NO SENSE and the Additional Sense Code Qualifier to End of Partition or Beginning of Partition For write type operations the drive returns a CHECK CONDITION on any operation w...

Page 250: ...n Command Specific Information Bytes Command Specific Bytes are handled as device specific and can be logged by the operating system on error conditions On media errors this usually contains the current SCSI Logical Block Address Additional Sense Code ASC and ASC Qualifier These two bytes provide additional information about the Sense Key and cause of the CHECK CONDITION status See the tables late...

Page 251: ... number of tape motion hours that is the head wear hours Format is represented in a hex decimal word 2 bytes Power On Hours Report the total hours the drive power has been on Format is represented in a hex decimal longword 4 bytes Tape Remaining Report the amount of tape remained in 4096 bytes block ...

Page 252: ...he Additional Sense Code Qualifier fields may provide more specific information 5h Illegal Request The CDB or supplied parameter data had an unsupported or illegal operation specified Check bytes 15 16 and 17 6h Unit Attention Unit Attentions are created after a device reset if the media asynchronously becomes ready to this initiator if another initiator changes Mode Parameters and if the firmware...

Page 253: ... Encountered Beginning of Medium Encountered EOD Encountered 04h 00h 01h 02h 03h Unit not ready Cause nonreportable Calibration in process Load command needed Manual Intervention needed 08h 00h 01h LUN Communications Failure LUN Communications Timeout 0Ah 00h Error Log Overflow 0Ch 00h Write Error 11h 00h 08h Unrecovered Read Error Incomplete Block Read 14h 00h Recorded Entity Not Found 15h 01h 02...

Page 254: ...drive Insufficient resources Invalid offset Invalid size Image data over limit Image personality is bad Not immediate command Bad drive servo image EDC Invalid personality for CUP Bad controller image EDC 25h 00h Illegal LUN 26h 00h 01h 02h Parameter list error Invalid Field Parameter not supported Parameter Value Invalid 27h 00h 80h 82h Write protected Hardware write protect Data safety write pro...

Page 255: ...unded Parameter 39h 00h Saving Parameters Not Supported 3Ah 00h 80h Media Not Present VU Cartridge Missing 3Bh 00h 08h 0Dh 0Eh Sequential Positioning Error Reposition Error Media Destination Element Full Media Source Element Empty 3Dh 00h Invalid Bits in ID Msg 3Fh 01h Microcode has been changed 40h 80h 81h 82h 83h 84h ROM EDC failure RAM failure Bad Drive status Loader diags failed Reportable POS...

Page 256: ...explained Residue in TC Registers Immediate data transfer timeout Insufficient CDB bytes Disconnect SDP sequence failed Bus DMA Transfer Timeout EEPROM copy 1 area bad EEPROM copy 2 area bad Both EEPROM copies bad 45h 00h Select Reselect Failure 47h 00h SCSI Parity Error 48h 00h IDE Message received 49h 00h Invalid Message Error 4Eh 00h Overlapped Commands attempted 51h 00h Erase failure 53h 00h 0...

Page 257: ...ional Sense Codes Qualifiers Used Cont d ASC ASCQ Description 5Bh 01h 02h Threshold Condition Met Log Counter at Maximum 80h 00h 01h 02h Calibration Error Cleaning Required Cleaning Requested 81h 00h Directory Read Error 82h 00h Not allowed if not at BOT Medium Changer specific commands ...

Page 258: ...CHECK CONDITION status with a sense key of UNIT ATTENTION on the next command following the condition It is not an error to issue RESERVE UNIT to a drive that is currently reserved to the requesting initiator If the logical unit has previously been reserved by another initiator the target returns a RESERVATION CONFLICT status If after honoring the reservation any other initiator attempts to perfor...

Page 259: ... another RESERVE UNIT to the drive 8 4 19 1 Medium Changer Considerations The optional Element reservation feature defined for Medium Changer devices in SCSI 2 is not supported so the RESERVE command is defined the same as for the tape drive Only the whole loader unit can be reserved This is separate from a reservation of the tape drive The RESERVE RELEASE commands operate on a LUN basis so the Me...

Page 260: ...e drive to position the tape at the beginning of the currently active partition Before rewinding the drive writes any write data that is buffered to the tape and appends an EOD marker Immed If the Immed Immediate bit is set the drive first writes any remaining buffered data to tape followed by an EOD marker It then returns status to the host before beginning the actual rewind operation If the Imme...

Page 261: ...operly This is the premise this test is based on that full power up testing is not necessary Therefore this test does an extension of the power up self tests The code ROM EDC is verified two queues used by much of the controller software is checked by dequeuing and enqueuing items If there is a loader attached a software reset is done on it This test does not attempt to write or read data to or fr...

Page 262: ... calibration is not required This test is specified by setting the Self Test and UnitOfL bits and zeroing the DevOfL bit This test can accept a parameter list specifying test variables as shown in the next table If a parameter list is specified all parameters must be filled in and the parameter list length should be set to 12 If these requirements are not met an ILLEGAL REQUEST will be returned Th...

Page 263: ...egal combination 0 1 1 Self Test 2 with default parameters 1 0 0 Self Test 1 with default parameters 1 0 1 Self Test 2 with default parameters 1 1 0 Self Test 1 with default parameters 1 1 1 Self Test 2 with default parameters Bit 7 6 5 4 3 2 1 0 0 MSB Pattern Number LSB Maximum Number of Test Passes Byte 10 1 MSB Block Size LSB 11 2 MSB Block Count LSB 3 MSB LSB 4 5 6 7 8 9 Figure 8 74 SEND DIAGN...

Page 264: ...ecifies how many blocks to write read starting first on track 0 then again on track 1 So if the Block Size and Count fields result in 3 tracks worth of data the test will Write tracks 0 1 2 Rewind read and verify 0 1 2 Write 3 tracks starting with 1 1 2 3 and then rewind to the beginning of track 1 and do the read verify pass If Block Count is set to zero data will be written until EOT is reached ...

Page 265: ... more specific information 5h ILLEGAL REQUEST Illegal bit settings in the SEND DIAGNOSTIC command Eh Miscompare A compare error occurred during a read Table 8 10 Additional Sense Codes Additional Sense Code Additional Sense Qualifier Description 15h 2h A positioning error has occurred where the returned position does not match the expected 40h 80h Level 1 ROM test failed 40h 81h Level 1 RAM test f...

Page 266: ... functions that are determined by Code and Count fields in the Command Descriptor Block Both forward toward EOM P and reverse toward BOM P positioning are provided Code The code is defined as follows Space Code Space by 000b Blocks 001b Filemarks 010b Sequential Filemarks 011b End of Data Figure 8 76 SPACE Code Definition For 2 6 and 6 0 GB format the drive supports count values 0 1 and 2 only For...

Page 267: ...cing to EOD the Count field is ignored Forward movement occurs until the drive encounters EOD The position is such that a subsequent WRITE command would append data after the last object that has been written to tape before EOD When executing SPACE the drive implements the following hierarchy Blocks lowest Filemarks EOD BOM P or EOM P highest Therefore SPACE N blocks will halt with GOOD status aft...

Page 268: ...t If the drive has a tape loaded the command returns a GOOD status Otherwise CHECK CONDITION is reported It is possible to get multiple check conditions on a TEST UNIT READY command because of power cycle code update and tape loaded 8 4 23 1 Medium Changer Considerations When directed at the Media Loader LUN this command will return Check Condition Sense Key or Not Ready if The Mode Select key swi...

Page 269: ...cks beginning with the next block on the tape Both CRC and EDCs are validated Immed If this bit is set the Verify command will complete before any media movement is done that is when processing has been initiated BC This bit selects a CRC ECC verification or a byte by byte compare If the BC bit is cleared the device is instructed to perform an internal CRC ECC check of the data If this bit is set ...

Page 270: ...er The drive flushes the write buffer to tape under the following conditions The write hold off time limit is exceeded See MODE SELECT command Receipt of the following nonwrite commands LOAD UNLOAD REWIND ERASE LOCATE MOVE MEDIUM PREVENT ALLOW MEDIUM REMOVAL that clears a prevent state A Write Filemarks command with the immediate bit cleared A SCSI Reset or Bus Device Reset a reset message is rece...

Page 271: ...efined in the MODE SELECT command Upon termination the tape is logically positioned after these blocks Transfer Length This field contains the length of the data transfer in bytes or blocks depending on whether Fixed or Variable block mode is selected If the Transfer Length is zero no data is transferred and the current position on the logical unit is not changed Exception Conditions If EOT is det...

Page 272: ...face hardware and SCSI bus integrity It is also used for downloading and updating controller microcode firmware Mode The drive supports the following values within the field If any other value is set the drive terminates the command with a CHECK CONDITION status and an ILLEGAL REQUEST sense key set Mode Description 000b 010b 100b 101b Write combined header and data Write data Download Microcode Do...

Page 273: ...wnloading of an image This is to safeguard against accidentally starting a firmware update If a cartridge is loaded when all or part of a firmware image has been downloaded another WRITE BUFFER with Download mode will be rejected Overlapping or nonconsecutive downloading of the image data is not supported The firmware image must be downloaded in integral multiples of 4K bytes Any error on a Write ...

Page 274: ... powerfail occurs or if the reprogramming fails part way through the subsystem will be unusable and the controller board will need to be replaced ____________________________________________________________ When the Save operation is successfully completed the firmware restarts itself causing POST to be rerun and two Unit Attention conditions are generated power up reset and operating code has cha...

Page 275: ...he command descriptor block has been validated unless the filemark count is zero or greater than 1 since both cause the write buffer to be flushed to media An Immed bit of zero indicates the status will not be returned until the operation is complete Number of Filemarks This is the number of consecutive marks to be written to tape A value of zero is not considered an error and GOOD status is retur...

Page 276: ...al Sense Code Qualifier fields are set to EOM P detected The drive will attempt to complete any subsequent WRITE FILEMARKS returning a CHECK CONDITION status in each case If the drive encounters the physical EOM when attempting a WRITE FILEMARKS CHECK CONDITION status is returned ...

Page 277: ...E SELECT 8 5 3 1A MODE SENSE 8 5 3 A5 MOVE MEDIUM 8 5 4 3C READ BUFFER 8 4 14 B8 READ ELEMENT STATUS 8 5 2 1C RECEIVE DIAG RESULTS 8 4 16 17 RELEASE 8 4 17 03 REQUEST SENSE 8 4 18 16 RESERVE 8 4 19 1D SEND DIAGNOSTIC 8 4 21 00 TEST UNIT READY 8 4 23 3B WRITE BUFFER 8 4 26 Medium Changer specific commands Commands with significant Medium Changer specific content The Inquiry Send Diagnostic Receive ...

Page 278: ...ITIALIZE ELEMENT STATUS 07h Bit 7 6 5 4 3 2 1 0 0 Operation Code 07h Logical Unit Number Reserved Reserved Byte Flag Link Unused 1 Reserved 2 Reserved 3 Reserved 4 5 Figure 8 83 Initialize Element Status CDB This command causes the medium changer to initialize the element status ...

Page 279: ...ent not supported Data Transfer Element tape drive reserved Figure 8 85 Element Type Code Definitions The format of Element Status data is defined in the SCSI 2 specification The following sections show the information returned for the medium changer The Element Status data is made up of a header and one or more Status Pages for each element type The Status Pages are made up of a header and one or...

Page 280: ...e Tape Subsystem 8 5 2 1 Element Status Data Header Bit 7 6 5 4 3 2 1 0 0 MSB First Element Address Reported 1 LSB 2 MSB Number of Elements Reported Byte 3 LSB 4 Reserved 5 MSB 6 Byte Count of Report Available 7 LSB Figure 8 86 Element Status Data Header ...

Page 281: ...SB Descriptor 8 MSB 9 Transport Element Address 01h LSB 10 Reserved Except Rsv d Full 11 Reserved 12 Additional Sense Code 13 Additional Sense Code Qualifier 14 Reserved Byte 15 Reserved 16 Reserved 17 SValid Invert Reserved 18 MSB 19 Source Element Address LSB 20 Reserved 21 Reserved 22 Reserved 23 Reserved Figure 8 87 Medium Transport Element Status Page There is only one Medium Transport elemen...

Page 282: ... Reserved Byte 15 Reserved 16 Reserved 17 SValid Invert Reserved 18 MSB 19 Source Element Address LSB 20 Reserved 21 Reserved 22 Reserved 23 Reserved 24 Density Code of Media 0 if empty VU 25 Unused VU 26 to n Descriptors for other Storage Elements Figure 8 88 Storage Element Status Page There are up to five seven Storage Elements corresponding to the number slots in a magazine for DLT2500 DLT2700...

Page 283: ...DLT2000 SCSI Interface DLT2000 DLT2700 Cartridge Tape Subsystem 8 137 The Source Element Address will always be set to this element s address ...

Page 284: ...er 14 NotBus Rsvd IDValid LUValid Rsvd Logical Unit Number Byte 15 SCSI Bus Address same as tape drive s 16 Reserved 17 SValid Invert Reserved 18 MSB Source Element Address 19 LSB 20 Reserved 21 Reserved 22 Reserved 23 Reserved 24 Density Code of Media 0 if empty VU 25 Unused VU Figure 8 89 Data Transfer Element Status Page PvolTag and AVolTag are always zero Access is always set and Full is set i...

Page 285: ...IE ST IE MT 7 Reserved DT DT DT I E DT ST DT MT 8 Reserved 9 Reserved 10 Reserved 11 Reserved 12 Reserved MT DT MT I E MT ST MT MT 13 Reserved ST DT ST I E ST ST ST MT 14 Reserved IE DT IE I E IE T IE MT 15 Reserved DT DT DT I E DT ST DT MT Figure 8 90 Device Capabilities Page Format Bit Field Values Elements that can store media StorDT StorST Valid Source Destination pairs ST DT DT ST All the MT ...

Page 286: ...DLT2000 SCSI Interface 8 140 DLT2000 DLT2700 Cartridge Tape Subsystem The medium changer does not support ST ST or DT DT ...

Page 287: ... 2 MSB 1st Medium Transport Element Address 01h 3 LSB 4 MSB Number of Medium Transport Elements 1 5 LSB 6 MSB 1st Storage Element Address 100h 7 LSB 8 MSB Number of Storage Elements 9 LSB Byte 10 MSB 1st Import Export Elements 0 11 LSB 12 MSB Number of Import Export Elements 13 LSB 14 MSB 1st Data Transfer Element Address 10 h 15 LSB 16 MSB Number of Data Transfer Elements 01 17 LSB 18 Reserved 19...

Page 288: ... Medium Transport Element 2 0Fh Reserved 10h Data Transfer Element tape drive 11h 0FFh Reserved 100h Medium Storage Element Magazine slot 0 101h Medium Storage Element Magazine slot 1 102h Medium Storage Element Magazine slot 2 103h Medium Storage Element Magazine slot 3 104h Medium Storage Element Magazine slot 4 105h Medium Storage Element Magazine slot 5 106h Medium Storage Element Magazine slo...

Page 289: ... has the following format Bit 7 6 5 4 3 2 1 0 0 PS 0 Page Code 1Eh Byte 1 Additional Page Length 02h 2 Reserved Rotate 3 Member Number in Transport Element Set 0 Figure 8 92 Transport Geometry Page Format Rotation of media is not appropriate for this type of Loader so the Rotate bit is zero There is only one Medium Transport Element so there is only one set with one member ...

Page 290: ...element Address 3 LSB Byte 4 MSB Source Address 5 LSB 6 MSB Destination Address 7 LSB 8 Reserved 9 Reserved 10 Reserved 11 Unused Reserved Flag Link Figure 8 93 MOVE MEDIUM CDB The Move Medium command is used to move cartridges from the tape drive to the magazine slot it came from or from any magazine slot to the tape drive The Transport Element Address field must be zero or one ...

Page 291: ...DLT2000 SCSI Interface DLT2000 DLT2700 Cartridge Tape Subsystem 8 145 ...

Page 292: ...000 tape drive and the DLT2500 DLT2700 mini library including Topic Section Physical Description A 2 Performance Specifications A 3 Environmental Specifications A 4 Vibration and Shock Specifications A 5 Electromagnetic Interference EMI Susceptibility A 6 Regulatory Requirements A 7 Drive Reliability Factors A 8 CompacTape Recording Media Specifications A 9 ...

Page 293: ... 13 08 in 243 8 mm 9 6 in including the bezel Weight 2 9 kg 6 lb 7 oz 7 1 kg 15 b 9 0 oz Shipping Weight 3 86 kg 8 lb 8 oz depending on configuration 10 85 kg 23 lb depending on configuration Environmental temperature Operating 10 C to 40 C 50 F to 104 F 10 C to 40 C 50 F to 104 F Nonoperating 40 C to 66 C 40 F to 150 8 F 40 C to 66 C 40 F to 150 8 F Humidity Operating 20 to 80 noncondensing 20 to...

Page 294: ...uirements D C A C 22 W steady state 33 W maximum 50W maximum Power Consumption 5 Volt Bus 2 5 A steady state 3 0 A maximum N A 12 Volt Bus 0 8 A steady state 3 0 A maximum N A Communication interface SCSI 2 bus 8 bits single ended or differential with a separate SCSI LUN ID for the mini library and tape drive SCSI 2 bus 8 bits single ended or differential with a separate SCSI LUN ID for the mini l...

Page 295: ... not correct contact your authorized Quantum service representative The AC power cord used with this equipment must meet the following criteria 1 UL and CSA Certified cordage rated for use at 250 VAC with a current rating that is at least 125 of the current rating of the product In Europe the cordage must have the HAR mark 2 The AC plug must be terminated in a grounding type male plug designed for...

Page 296: ...Technical Specifications DLT2000 DLT2500 DLT2700 Cartridge Tape Subsystem A 5 Figure A 1 shows the different AC power cord plug configurations for 115V and 220V 240V usage Figure A 1 Power Cords ...

Page 297: ...pe 2 7 RLL code DLT2000 format MFM with DLT260 and DLT600 formats Form Factor 5 inch F H modified depth Transfer Rate Raw Native 1 7 MBytes second2 Transfer Rate User Native Uncompressed 1 25 MBytes second Transfer Rate User Compressed1 More than 2 5 MB second maximum write More than 3 0 MB second maximum read Error Rate Recoverable 1 10 E7 Read recoverable error rate 1 10 E6 Write recoverable err...

Page 298: ...ting 20 to 80 noncondensing 20 to 80 noncondensing Nonoperating 10 to 95 10 to 95 Certifications EMI Meets CEmark Class A VCCi Class 1 CISPR 22 Class A FCC Class A devices Meets CEmark Class A VCCi Class 1 CISPR 22 Class A FCC Class A devices Safety Meets UL CSA TUV BG MARK and IEC standards Meets UL CSA TUV BG MARK and IEC standards Maximum number of cartridges 5 5 Electrical rating Auto ranging ...

Page 299: ... 150 8 F Humidity Operating 20 to 80 noncondensing 20 to 80 noncondensing Nonoperating 10 to 95 10 to 95 Certifications EMI Meets CEmark Class A VCCi Class 1 CISPR 22 Class A FCC Class A devices Meets CEmark Class A VCCi Class 1 CISPR 22 Class A FCC Class A devices Safety Meets UL CSA TUV BG MARK and IEC standards Meets UL CSA TUV BG MARK and IEC standards Maximum number of cartridges 7 7 Electric...

Page 300: ...w of the DLT2000 drive 5 700 144 78 3 125 79 38 Z K O 1 2 1 7 1 1 D G 100 2 54 5 500 139 70 1 875 47 63 5 84 148 3 Figure A 2 Mounting Hole Dimensions Top View Tape drive width and height are standard 5 1 4 inch disk drive form factor measurements Both dimensions hold tolerances of 0 020 inches Depth dimensions have tolerances of 00 0 040 in ...

Page 301: ...ystem Figure A 3 shows the mounting holes and dimensions in a side view of the DLT2000 drive 3 250 82 55 820 20 83 3 125 79 38 9 000 228 60 9 600 243 84 25 8X 6 32UNC 2B 6 4 FULL THREAD Z K O 1 2 1 7 1 2 D G 1 875 47 63 3 40 86 4 Figure A 3 Mounting Hole Dimensions Side View ...

Page 302: ...n is 3 0 1 oz when stationary 4 7 1 oz at operating speed A 3 2 DLT2000 Timing Characteristics Table A 5 lists timing characteristics of the DLT2000 tape drive Table A 5 DLT2000 Timing Characteristics Read Write Tape speed 110 in sec RewindTape speed 150 in sec search Linear Search Tape speed 150 in sec search Average rewind time 60 sec Maximum rewind time 120 sec Average access time from BOT 45 s...

Page 303: ...g 48 0 sec Unload media from drive to cartridge from BOT 17 0 sec A 3 4 DLT2700 Media Loader Timing Characteristics Table A 7 lists timing characteristics of the DLT2700 media loader Table A 7 DLT2700 Media Loader Timing Characteristics Nominal magazine scan 12 0 sec Move cartridge slot to drive 20 30 sec Move cartridge drive to slot 37 5 sec Error recovery 30 0 sec Load media on to drive ready fo...

Page 304: ...y conditioning Uncontrolled tolerances Systems inadequate to maintain constant comfort levels for example marginal offices and work spaces A 4 1 Temperature and Humidity Table A 8 lists the operating temperature and humidity ranges Table A 8 Operating Ranges Temperature Range 10 to 40 C Temperature Gradient 11 C h across the range Temperature Shock 10 C over two min Relative Humidity 20 to 80 nonc...

Page 305: ...ature shock 15 C with 5 margin over two min Relative humidity 10 to 95 noncondensing Humidity gradient 10 h Table A 11 lists the shipment ranges Table A 11 Shipment Ranges Dry bulb temperature 40 to 66 C Temperature gradient 25 C h with 5 margin across the range Temperature shock 15 C with 5 margin over two min Relative humidity 10 to 95 noncondensing Humidity gradient 10 h A 4 2 Altitude The tape...

Page 306: ...ifications Vibration type Sine Sweep Frequency range 5 500 5 Hz Upward and downward sweep Acceleration level 0 25 g 0 010 DA Between 5 and 22 Hz crossover Between 22 and 500 Hz Application X Y and Z axes Sweep rate 1 octave per minute Overstress Vibration type Sine Sweep Frequency range 5 500 5 Hz Upward and downward sweep Acceleration level 0 50 g 0 010 DA Between 5 and 26 1 Hz crossover Between ...

Page 307: ... list nonoperating vibration and nonoperating shock specifications for the product in its shipping packaging Table A 15 Nonoperating Packaged Vibration Specifications Vibration type Random vibration Frequency range 5 to 300 Hz vertical z 5 to 200 Hz horizontal x and y Vibration levels 1 19 GRMS overall in vertical z axis 0 698 GRMS overall in horizontal x and y axes PSD envelope vert 5 to 10 Hz 10...

Page 308: ... Drop shock Drop height 30 in items 20 9 lbs 24 in 21 items 40 9 lbs 18 in 41 items 60 9 lbs 12 in 61 items 100 lbs Application 10 drops total 1 each side 3 edges 1 corner Table A 18 Nonoperating Unpackaged Vibration Specifications Nonoperating Unpackage Vibration Specifications Vibration type Sine Sweep Frequency range 5 500 5 Hz Upward and downward sweep Acceleration level 1 g 10 500 10 Hz Appli...

Page 309: ...Nonoperating Unpackaged Shock Specifications Nonoperating Unpackaged Pulse shape Square wave Peak acceleration 40 G Duration 180 in sec Application X Y and Z axes twice in each axis Pulse shape 1 2 sine pulse Peak acceleration 140 G Duration 2 ms Application X Y and Z axes twice in each axis ...

Page 310: ...ity A 6 5 Conducted Susceptibility A 6 6 ESD Failure Level Limits A 6 7 Acoustic Noise Emissions A 6 8 A 6 1 Electromagnetic Emissions Electromagnetic emissions include CSA 108 8 EEC Directive 89 336 EN55022 and National standards are based on BS6527 UK NEN55022 Netherlands VDE 0871 Class A Germany CE Mark Cispr22 Class A FCC Rules Part 15B Class A certified A 6 2 Conducted Emissions Limits for Cl...

Page 311: ... of radiated interference field strength in the frequency range from 30 MHz to 30 GHz at a test distance of 3 and 10 meters for Class B equipment are listed in table A 21 Table A 21 Radiated Emissions 30 Mhz to 30 Ghz Frequency range MHz Quasi peak limit dB µV m 10 m 3 m 30 to 230 30 40 230 to 1000 37 46 Above 1000 N A 54 A 6 4 Magnetic Radiated Susceptibility Table A 22 lists the magnetic radiate...

Page 312: ...er and data cables Table A 24 Fast Transient Bursts for Power and Data Cables 2 kV S W recoverable errors No hardware failures Table A 25 lists power cable voltage limits Table A 25 High Energy Transient Voltage for Power Cables 1 2 kV No errors 2 5 kV S W recoverable errors No hardware failure _____________________________ Note_________________________ Maximum energy in a single pulse from the tr...

Page 313: ...oustic noise emission levels Table A 28 Acoustic Noise Emissions Nominal Noise Power Emission Level LNPEc Mode DLT2000 Drive DLT2000 Tabletop DLT2700 Loader Idle N A 4 3 bels 5 1 bels Streaming N A 4 9 bels 5 2 bels Sound Pressure Level LPAc Mode DLT2000 Drive DLT2000 Tabletop DLT2700 Loader Idle N A 35 0 dB 34 0 dB Streaming N A 40 0 dB 35 0 dB Table A 28 Acoustic Noise Declaration for German Noi...

Page 314: ...ubsystem A 23 Table A 28 Acoustic Noise Declaration for German Noise Declaration Law Cont d Generic Product Option Numbers Description TH3xx DLT2000 drive TH3Bx DLT2000 table top drive TH3Ex DLT2700 cartridge rackmount loader TH3Fx DLT2700 cartridge table top loader ...

Page 315: ...rements include UL1950 Information Technology Including Electrical Business Equipment CSA C22 2 220 Information Technology Including Electrical Business Equipment TUV EN60950 Information Technology Including Electrical Business Equipment A 7 2 Electromagnetic Emission Requirements Electromagnetic emission requirements include FCC Part 15 Class A EN55022 A EN55082 A CISPR22 A VCCi Class 1 and 2 CEm...

Page 316: ...s Design life statistics provide the point at which statistical failure rate begins to rise Head life 10 000 tape motion hours Continuous operation under severe stress envelope with CompacTape media MTBF 80 000 hours Quantum Corporation does not warrant that predicted MTBF is representative of any particular unit installed for customer use Actual figures vary from unit to unit Tape life 500 000 pa...

Page 317: ...ia Specifications Table A 30 lists the media characteristics Table A 30 CompacTape Recording Media Specifications CompacTape III Description Quantity Width 0 5 in metal particle Length 1200 ft Cartridge Dimensions 4 1 in x 4 1 in x 1 0 in Shelf Life 30 years min 20 C 40 RH non condensing Usage 500 000 passes ...

Page 318: ..._______ Note _____________________________ This byte has two formats a byte code and a bit flags format The bit flags format is used when there is no internal status code to report and can be distinguished by bit 7 being set ___________________________________________________________ Table B 1 Internal Status Code Dec Hex Description 0 0 No meaning 1 1 Reed Solomon Error Correction Code recovery 2...

Page 319: ... 20 14 Block to append to not found 21 15 Data synchronization error read after write not happening 22 16 Missing block s in current entity 23 17 Drive hardware write protected 24 18 Reposition target not found 25 19 Long gap encountered blank tape or no data encountered 26 1A End of data or filler block encountered 27 1B File mark encountered 28 1C EDC error found by GPSP3 FECC RAM bad 29 1D Begi...

Page 320: ...30 Medium changer hardware error 49 31 Medium changer controller error 50 32 Unrecognized medium changer subcommand 51 33 Medium changer fatal error 52 34 Medium changer is in manual mode 53 35 68020 detected communication error w Servo area 54 36 68020 detected drive command timeout 55 37 Calibration failure 56 38 Bad tape format Table B 2 Internal Status Bit Flags Bit No Description 0 If set cle...

Page 321: ...Definition of Vendor Unique Sense Data Information B 4 DLT2000 DLT2500 DLT2700 Cartridge Tape Subsystem ...

Page 322: ...og Overflow 37 00 Rounded Parameter 3B 08 Repositioning error 44 C1 Internal Target failure EEROM copy 1 area bad 44 C2 Internal Target failure EEROM copy 2 area bad 44 C3 Internal Target failure EEROM both copy areas bad 47 00 SCSI Parity Error 48 00 IDE Message Received 51 00 Erase failure 53 01 Unload tape failure 5B 02 Log Counter at Maximum 80 02 Cleaning Requested Not Ready 2 04 00 Unit Not ...

Page 323: ...lock read 14 00 Recorded Entity Not Found 15 02 Position error detected by read of medium 30 00 Can t Read Medium 3B 00 Sequential positioning error 3B 08 Repositioning error 51 00 Erase Failure 80 00 Calibration Error 80 01 Cleaning Required 81 00 Directory Read Error Hardware Error 4 08 00 LUN Communication Failure 08 01 LUN Communication Timeout Failure 15 01 Random Mechanical Positioning Error...

Page 324: ...transfer timeout 44 86 Insufficient CDB bytes 44 87 Disconnect SDP sequence failed 44 88 Bus DMA transfer timeout 48 00 IDE Message received 47 00 SCSI Parity Error 51 00 Erase Failure 53 00 Media Load Eject Failure 53 01 Unload tape failure Illegal Request 5 1A 00 Parameter List Length Error 20 00 Illegal Opcode 21 01 Invalid Element Address 24 00 Invalid CDB Field 24 81 Invalid mode on write buf...

Page 325: ...0D Media Destination Element Full 3B 0E Media Source Element Empty 3D 00 Invalid Bits in ID Message 53 02 Media Removal Prevented 82 00 Not allowed if not at BOT Unit Attention 6 28 00 Not Ready To Ready Transition 29 00 Reset occurred 2A 01 Mode Parameters changed 2A 02 Log Parameters changed 3F 01 Microcode has been changed 5B 01 Log Threshold condition met Data Protected 7 27 80 Hardware Write ...

Page 326: ...________________ The Filemark EOM ILI bits may be set even though ASC ASCQ 00 00 ___________________________________________________________ 1 FM EOM ILI bit may be set with no sense key 0 and ASC ASCQ 00 00 2 FM EOM ILI bit may be set with recovered error 1 and ASC ASCQ 00 00 3 FM EOM ILI bit may be set with medium error 3 and ASC ASCQ 00 00 4 EOM bit is set at Volume Overflow Dh and ASC ASCQ 00 ...

Page 327: ...Sense Key Information C 6 DLT2000 DLT2500 DLT2700 Cartridge Tape Subsystem ...

Page 328: ...form to the standard EEROM LOG packet envelope as shown in Figure D 1 The information logs are maintained as a circular buffer a new entry will overwrite the oldest existing entry At any point in time the most recent 14 logs are kept The EEROM information packets can be retrieved by Log Sense command with page code 07h Last n Error Events page The packet type field defines the content as well as t...

Page 329: ...software detected fatal failure For example a hardware failure or an internal system consistancy failure might cause a bugcheck These events cause Bugcheck packets to be written into EEROM Refer to Figure D 2 for the detailed packet layout The most important information is the error code The more common ones are listed in Table D 2 A full listing is not given here because most are not meaningful w...

Page 330: ...ugcheck Meaning and Possible Cause Code E204 nexpected Timer2 Interrupt possible ECM fault EE01 Spurious Non Maskable Interrupt possible ECM fault EE02 Spurious 8254 Timer Interrupt possible ECM fault EE03 Spurious Level 5 interrupt GPSP possible ECM fault EE04 Spurious Drive Comm Interrupt possible ECM fault EE05 Spurious Loader Comm Interrupt possible ECM fault EE06 Spurious Diag Comm Interrupt ...

Page 331: ...n in Figure D 3 Bits 7 0 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 96 POH PC Time Stamp reserved POST Last Fail Vector Secondary POST Vector Tertiary POST Vector Figure D 3 POST LOG Packet Layout D 4 Event Log packets Event logs are non fatal and can occur to log error or informative information regarding significant events The general envelope for these packets is shown in Figure D 4 Ref...

Page 332: ...log byte last event log byte Figure D 4 EVENT LOG Packet Layout Table D 3 Event Log Codes Event Log Code Meaning 0xA400 Hard Read Error Log 0xA401 Hard Write Error Log 0xA402 Drive Error Log 0xA403 Loader Error Log 0xA407 Directory Read Fail 0xA408 Directory Write Fail D 4 1 Directory Failure Event Logs These event logs are written when a directory read or write request fails for any reason Refer ...

Page 333: ...vent Logs Saved Overwrites ReReads ReWrites These are fields are used as temporaries and have no use in interpreting these packets Dir Called Mode A code which specifies the original reason for the directory call A value of 1 indicates a directory READ on load a value of 2 indicates a directory WRITE on UNLOAD a value of 3 indicates a directory WRITE on WRITE from BOT Tape Format Called New These ...

Page 334: ...ry Event Statuses Primary Secondary Meaning 0 0 Status Unknown 1 1 No Directory 50 70 Format 1 10 Inconsistent Formats 1 11 Wrong Format 1 12 Reserved Field Validation Failed 1 20 Read Sync Time Out 1 21 No directory Blocks Read 1 22 Not all Directory Blocks Present 1 30 SyncLock Failure 1 31 Revision Level Mismatch 1 32 Directory Verify Failed 1 33 Directory Initialized WRITE from BOT 1 40 Empty ...

Page 335: ...ket The CUP status packet is written after every code update attempt regardless of its status Refer to Figure D 6 for the overall packet layout The Old 68020 and Old Servo Sections contain informa tion about the code images that exist in the Flash memories for those areas before the update is performed The New 68020 and New Servo sections contain information about the new images The fields within ...

Page 336: ... Update Status reserved New 68020 Code SubRev reserved Servo Fw Update Status reserved New 68020 Rel Flag reserved Old 68020 Code Version reserved New 68020 Code EDC value Old 68020 Code Sub revision New 68020 Code Time Stamp Old 68020 Rel Flag New 68020 Code Pers Old 68020 Code EDC value New 68020 Code Pers SubRev Old 68020 Code Time Stamp New Servo Code Version Old 68020 Code Pers New Servo Code...

Page 337: ...Erase of FLASH Memory Failed 55 FLASH Memory Clear zero Failed 56 Invalid Image Compressed Table D 7 Servo Code Update Status Status Meaning 0 No Update Operation Performed 1 Code Update Operation Successful 2 Servo Update Not Necessary 10 Servo Code Update Inhibited 20 Servo Image Validation Failed 21 Bad Initial Poll 22 Servo Family Mismatch 23 Servo FLASH Erase Failed 24 Erase Time Out 25 Image...

Page 338: ...24 5 18 using a 3 22 using cleaning tape cartridge 3 23 write protect switch 5 20 Cartridge insert release handle when to operate 3 11 Cartridge before loading 4 21 Cartridge insert 4 23 Cartridge loading into drive 4 27 Cartridge removing 4 25 Cartridge unloading from the drive 4 28 Cartridge write protect switch 4 21 Cleaning tape cartridge using 3 23 Cleaning tape cartridge when to use 4 29 Cod...

Page 339: ...500 Drive error description 6 5 DLT2500 Error conditions 6 5 DLT2500 Errors clearing for loader drive controller or unknown 6 6 DLT2500 Errors clearing for magazine 6 5 DLT2500 Loader error description 6 5 DLT2500 Magazine status of 6 5 DLT2500 Magazine error 6 5 DLT2500 Mini library operating procedure 4 1 DLT2500 Mini library configure install 4 7 DLT2500 Unknown error description 6 6 DLT2500xt ...

Page 340: ... Guidelines DLT2700 configuration 5 3 for configuration 2 4 for installation 2 2 H Header and data mode 8 127 High energy transient voltage power cables A 21 Host selection density 4 16 Humidity Environmental specifications A 13 I Indicators beeper 3 11 description 3 11 front panel 3 10 how to interpret 3 14 INITIALIZE ELEMENT STATUS 8 132 INQUIRY 8 17 Insert cartridge magazine 4 23 Install DLT250...

Page 341: ...al tape tension performance specifications A 11 Nonoperating Shock A 16 Nonoperating Vibration A 16 Normal mode 4 17 O OCP 4 9 OCP Disabled mode 5 5 OCP Disabled 4 13 OCP enabled 4 13 OCP locked 4 13 OCP unlocked 4 13 Opcode ERASE 19h 8 16 INITIALIZE ELEMENT STATUS 07h 8 132 INQUIRY 12h 8 17 LOAD UNLOAD 1Bh 8 25 LOCATE 2Bh 8 27 LOG SELECT 4Ch 8 28 LOG SENSE 4Dh 8 34 MODE SELECT 15h 8 46 MODE SENSE...

Page 342: ...ge 01h 8 61 8 86 Storage Element Status Page 8 136 Supported Pages Log Page Page 0 8 37 Transport Geometry Parameters Page 1Eh 8 142 Vital Product Data Pages 8 22 Page format 8 37 Parity checking disable 5 3 disabling 3 2 Performance specification DLT2000 tape drive A 11 PO ST failure packets D 4 POST 5 15 after you run it 2 9 running 2 8 POST drive 3 12 POST events 4 8 Power connectors 3 6 Power ...

Page 343: ...equirements A 16 Side view A 10 Slot Select button 5 17 operation 5 17 SPACE 8 120 STATUS phase 8 5 Storage element status page 8 136 Storage ranges environmental specifications A 14 Subsystem installation 2 4 Supported SCSI 2 medium changer device commands 8 131 Switch functions density select 4 18 Switch functions normal mode 4 17 Switch functions SCSI ID Select 4 19 T Tape Cartridge 3 17 4 20 T...

Page 344: ...ital product data pages 8 22 W WRITE 8 124 WRITE BUFFER 8 126 Write data 8 127 WRITE FILEMARKS 8 129 Write protect switch 3 17 4 20 4 21 5 20 diagram 3 18 4 20 positioning 3 17 write enabling 3 19 write protecting 3 19 Write protect switch positioning 4 20 Write protect switch write enabling 4 21 Write protect switch write protecting 4 21 ...

Page 345: ...Index 8 DLT2000 DLT2500 DLT2700 Cartridge Tape Subsystem ...

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