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Installation

Installing an Internal DAT24 Drive

17

Connecting Power and Interface Cables

Attach the power and SCSI interface cables to the appropriate connectors on the back of the drive. 
Figure 6 on page 17 shows the locations of these connections.

Connecting the SCSI Interface Cable

Turn off all power to the drive and host computer. Attach the SCSI cable, making sure to align pin 1 
on the cable with pin 1 on the drive. Pin 1 on the SCSI connector is to your right as you look at the 
back of the drive (see Figure 6). Your SCSI cable should have pin 1 highlighted by a colored stripe.

Connecting the Power Cable

Attach a 4-pin power connector from the system power supply to the connector on the back of the 
drive. The recommended 4-pin power connector for the internal drive is an AMP 1-48024-0 housing 
with AMP 60617-1 pins or equivalent.

Figure 6. 

Locations of SCSI Interface and Power Connectors on the Internal Drive

4-pin

power

connector

SCSI pin 1

SCSI connector

Содержание 24

Страница 1: ...i Online User s Guide DAT24 Tape Drive C E R T A N C E ...

Страница 2: ...tion may be reproduced in any form without written permission from Certance LLC Certance provides this manual as is without warranty of any kind either expressed or implied including but not limited to the implied warranties of merchantability and fitness for a particular purpose Certance reserves the right to change without notification the specifications contained in this manual Certance assumes...

Страница 3: ...product Power cord protection The power cord should be routed so that it is not likely to be walked on or pinched by items placed upon or against it paying particular attention to the cord at the wall receptacle and the point where the cord exits from the product To complete the disconnection of the electricity please remove the power electric cord and the SCSI cable from their connections in the ...

Страница 4: ...40 F 40 C Keep the unit away from direct sunlight strong magnetic fields excessive dust humidity and electronic electrical equipment which generate electrical noise Hold the power cord by the head when removing it from the AC outlet pulling the cord can damage the internal wires Use the unit on a firm level surface free from vibration and do not place anything on top of the unit ...

Страница 5: ...receiver are on different branch circuits If necessary you should consult the dealer or an experienced radio television technician for additional sugges tions You may find the booklet How to Identify and Resolve Radio TV Interference Problems prepared by the Federal Communications Commission helpful This booklet Stock No 004 000 00345 4 is available from the U S Government Printing Office Washingt...

Страница 6: ...AT Cartridge 21 DAT Cartridge Compatibility 22 Write Protecting a DAT Cartridge 22 Cleaning the Tape Heads 23 LED Codes 23 Chapter 4 UNIX Settings 26 Introduction 26 Setting DIP Switches for UNIX Support 26 Configuring Inquiry Strings 27 Configuring for the DEC UNIX Environment 28 Configuring for the Sun Environment 29 Configuring for the SGI Environment 30 Configuring for the HP UX Workstation En...

Страница 7: ...brackets 16 Figure 5 Mounting Holes for Internal DAT24 Drive in 5 25 inch Configuration with mounting brackets 16 Figure 6 Locations of SCSI Interface and Power Connectors on the Internal Drive 17 Figure 7 Rear Panel of the Desktop Drive 19 Figure 8 SCSI Termination Examples 19 Figure 9 Loading a DAT Tape Cartridge 3 5 inch drive 20 Figure 10 Location of Tape Eject Button and Drive Status LED 21 F...

Страница 8: ... Tables Table 1 DAT24 Models Covered in This User s Guide 9 Table 2 LED Flash Codes 24 Table 3 Cartridge Status LED 25 Table 4 Drive Configuration Settings 26 Table 5 Inquiry Strings 27 Table 6 DAT24 PRTNO Value 27 ...

Страница 9: ...fered as internal and desktop versions The internal version is available as a 3 5 inch or 5 25 inch tape drive It provides a 50 pin dual row single ended SCSI connector at the back of the drive The desktop version provides two 50 pin shielded connectors ANSI Alternative 2 on the back panel These connectors consist of two rows of ribbon contacts spaced 2 16 mm 0 085 in apart Either connector can be...

Страница 10: ... the internal DAT24 drive involves the following steps 1 Observe the guidelines and cautions for handling internal tape drives See Internal Tape Drive Guidelines and Cautions on page 11 2 Configure the drive See Configuring the Internal DAT24 Drive on page 11 3 Mount the drive See Mounting an Internal DAT24 Drive on page 15 4 Connect the power and interface cables See Connecting Power and Interfac...

Страница 11: ...f the bag to reduce the chance of damage from static discharge Configuring the Internal DAT24 Drive Before you install the internal DAT24 tape drive in your computer you may need to set the drive s SCSI ID or other drive features Most features are set using a bank of dip switches on the underside of the drive see Figure 1 on page 11 To control SCSI termination and terminator power or to con figure...

Страница 12: ... you change a DIP switch setting the new setting does not take effect until you restart the drive or send a SCSI Bus Reset to the drive NOTE Each SCSI device on a bus must have a unique SCSI ID The SCSI host controller gener ally uses ID 7 In some systems the boot drive uses ID 0 1 2 3 4 5 6 7 8 9 10 O F F Block of 10 dip switches S2 S3 S4 S5 S6 S7 S8 OFF ON OFF SCSI ID 0 1 2 3 4 5 6 7 S9 S10 Note...

Страница 13: ...Switch 5 enables or disables parity checking for the SCSI bus If switch 5 is ON parity checking is enabled If switch 5 is OFF the default setting parity checking is disabled but parity is still gener ated by the drive DDS Pass through Mode Switch 6 Switch 6 ON DDS pass through data compression disabled Switch 6 OFF DDS pass through data compression enabled default If switch 6 is OFF the default se...

Страница 14: ...e 26 Jumper Settings Configuration jumpers on the back of the drive control SCSI bus termination and terminator power The jumpers can also be used for remote SCSI address selection Figure 3 on page 14 shows the locations of the jumper block and jumper settings for the internal DAT drive Figure 3 Location of Jumper Blocks on Internal DAT2 Drives Settings for each jumper described in detail in the f...

Страница 15: ...e drive If this occurs the drive will no longer supply terminator power to the bus To replace the fuse return the drive to an authorized repair facility Remote SCSI Address Selection Use pins 1 through 6 to select the SCSI address remotely To do so connect a remote SCSI ID switch to pins 1 through 6 Pins 1 and 2 configure SCSI ID bit 0 Pins 3 and 4 configure SCSI ID bit 1 Pins 5 and 6 configure SC...

Страница 16: ...mm 15 in 2 PLACES 31 0 mm 1 22 in 70 0 mm 2 76 in 8 0 mm 31 in 2 PLACES M3 0 X 4 DEEP MIN 10 PLACES 5 0 mm 20 in 2 PLACES 35 0 mm 1 38 in 2 PLACES 60 0 mm 2 36 in 2 PLACES 21 0 mm 83 in 2 PLACES 30 0 mm 1 18 in 2 PLACES Side View Bottom View 104 1 mm 4 10 in 45 0 mm 1 77 in 6 mm 24 in 2 PLACES 152 mm 5 98 in 101 6 mm 4 00 in 41 2 mm 1 62 in 28 3 mm 1 11 in 2 PLACES 41 3 mm 1 63 in M3 0 X 4 DEEP MI...

Страница 17: ... 1 on the cable with pin 1 on the drive Pin 1 on the SCSI connector is to your right as you look at the back of the drive see Figure 6 Your SCSI cable should have pin 1 highlighted by a colored stripe Connecting the Power Cable Attach a 4 pin power connector from the system power supply to the connector on the back of the drive The recommended 4 pin power connector for the internal drive is an AMP...

Страница 18: ...For your convenience you can register the DAT24 through our Web site at http register certance com Configuring the Desktop DAT24 Drive The following is the default configuration for desktop DAT24 tape drive Drive reads and writes both MRS and non MRS 4 mm media Parity checking is disabled DDS DC data compression is enabled POST is disabled Termination power is supplied to the SCSI bus Setting the ...

Страница 19: ...n Examples Connecting the Power Cord Attach the power cord securely to the power connector on the back of the drive Figure 7 on page 19 shows the location of the power connector NOTE Turn off all power before connecting or disconnecting SCSI cables or terminating plugs 6 Power Connector ON OFF Switch Push button Switch SCSI Connectors Example 1 SCSI termination in a system that has only external S...

Страница 20: ...e drive bay door opens automatically when a cartridge is inserted Figure 9 on page 20 shows a cartridge being inserted into a 3 5 inch internal drive After you insert the cartridge there will be a brief delay while the drive identifies the cartridge type and state and moves the tape to the data area Figure 9 Loading a DAT Tape Cartridge 3 5 inch drive Caution To avoid data loss clean the drive hea...

Страница 21: ...is being initialized the normal write operation continues until all internal buffers are filled Ejecting the cartridge before the initialization is complete causes the procedure to abort The initialization restarts from the beginning the next time a Write command is received Caution Do not push the eject button while the Drive Status LED is ON Otherwise you may lose data NOTE Several seconds may e...

Страница 22: ... stripes classify the media as data grade rather than audio grade Four recognition holes allow the drive to identify the type of tape determine its magnetic thickness and to determine whether the tape is prerecorded or unrecorded or is a cleaning cartridge Other cartridge features that allow the drive to optically sense cartridge in are Beginning of tape and End of tape Write Protecting a DAT Cart...

Страница 23: ... advanced over the entire tape path The drive does not rewind a cleaning cartridge After about 30 cleaning cycles the entire tape is used up and you must purchase a new cleaning cartridge If you insert a cleaning tape that has been used up the drive ejects the tape without completing a cleaning operation This process takes just under 25 seconds LED Codes As Figure 12 on page 24 shows the front pan...

Страница 24: ...g excessive errors beyond a predefined error threshold warning only Use a DDS cleaning cartridge to clean the heads Green Flashing Rapidly The drive could not write the tape correctly a write error has occurred Try using a DDS DAT cleaning cartridge to clean the heads or try a new cartridge Green and Yellow Both flashing slowly A prerecorded audio cartridge has been inserted and is being played au...

Страница 25: ...us LED LED Status Meaning ON lit A DAT cartridge has been inserted and the drive is operating normally Flashing Slowly The tape cartridge in the drive has generated a significant number of data retries beyond a predefined DDS error threshold This signal is a warning only and does not indicate data loss If you see this signal remove the tape and clean the tape heads using an approved DDS DAT cleani...

Страница 26: ...ing Inquiry Strings on page 27 Configuring for the DEC UNIX Environment on page 28 Configuring for the Sun Environment on page 29 Configuring for the SGI Environment on page 30 Configuring for the HP UX Workstation Environment on page 32 Configuring for the IBM AIX Environment on page 33 Configuring for the SCO Environment on page 34 Setting DIP Switches for UNIX Support Switches 9 and 10 on the b...

Страница 27: ... change the string to SEAGATE DAT Table 6 on page 27 shows the PRTNO value in the inquiry string for the DAT24 tape drive When you make the actual kernel modifications replace PRTNO with the required number Table 5 Inquiry Strings Inquiry String Returned Switch 7 Setting ARCHIVE Python 04106 XXX OFF SEAGATE DAT 04106 XXX ON NOTE There are three spaces at the end of SEAGATE DAT to give the same ove...

Страница 28: ...nformation about drive inquiry strings SCSIDEVICE Type tape Name ARCHIVE Python PARAMETERS TypeSubClass rdat TagQueueDepth 0 MaxTransferSize 0x0ffffff 16MB 1 ReadyTimeSeconds 60 seconds DENSITY DensityNumber 0 3 4 5 6 7 DensityCode default CompressionCode 0x0 Buffered 0x1 DENSITY DensityNumber 1 2 DensityCode default CompressionCode 0x1 Buffered 0x1 4 Save the file 5 Run the command ddr_config c d...

Страница 29: ...ng the doconfig script and re boot the system Configuring for the Sun Environment Sun OS 4 1 x To configure SunOS 4 1 x explicitly to use the DAT24 tape drive modify the stdef h and st_conf c files in the directory usr sys scsi targets then rebuild the kernel as described below 1 Modify the stdef h file by adding a define statement for the DAT24 tape drive similar to the one shown below define ST_...

Страница 30: ...Python PRTNO DAT 0 0 0 0 0 0 MTCAN_BSF MTCAN_BSR MTCAN_APPEND MTCAN_SETMK MTCAN_PART MTCAN_PREV MTCAN_SYNC MTCAN_SPEOD MTCAN_CHKRDY MTCAN_VAR MTCAN_SETSZ MTCAN_SILI MTCAN_SEEK MTCAN_CHTYPEANY minimum delay on i o is 12 minutes to allow the Drives full error recovery sequence to be performed 40 12 60 12 60 12 60 512 512 512 2 Rebuild the kernel as described below See the beginning of this chapter f...

Страница 31: ...on is not required on systems running IRIX 6 4 Locate the area of code that deals with DAT drives This starts with Drive type DAT Insert the following before or after the similar entries for other supported devices Device Python PRTNO DAT drive with compression mdev expr mdev 8 mknod prf 1c c C_TPS mdev 3 Rebuild the kernel as described below See Configuring Inquiry Strings on page 27 for informat...

Страница 32: ...s supported in Irix 6 x by using different device driv ers Drivers including a c in the device name should enable compression Problems seen with com pressed operation can be resolved by installing the latest Irix 6 x patch set Configuring for the HP UX Workstation Environment HP UX Versions 10 2 and Later 1 Log in as root 2 Run the SAM utility 3 Choose the Peripheral Devices option 4 Choose Tape D...

Страница 33: ...ormance and functionality Set the Connection Address with the Drives Target and Lun always use Lun 0 In the list the Target is the first number and the Lun is the second For example if the drive is ID 5 choose 5 0 Set the Fixed Blocksize to 1024 Set Density 1 to 140 Set the Maximum delay for the Read Write command to 900 6 Press the Return key to install the drive in the system database and create...

Страница 34: ...the PC platforms support the DAT24 drive using the standard switch settings Switches 9 and 10 OFF SCO UNIX including ODT and Open Server SCO UnixWare Xenix Once connected to the system use the command mkdev tape install the drive See the online man ual pages for the mkdev command for specific installation details about each SCO variant ...

Страница 35: ...e SCSI address selection 15 SCSI ID 12 SCSI termination 15 terminator power 15 UNIX operating systems 14 26 DDS pass through 13 DEC UNIX Digital UNIX earlier than v4 0 29 Digital UNIX v4 0 and later 28 DEC UNIX environment 28 DIP switch settings internal drive 12 Drive Status LED 25 F Flash codes 23 G Guidelines and cautions internal drive 11 H HP UX environment 32 v10 2 and later 32 I IBM AIX env...

Страница 36: ...tems DEC UNIX environment 28 Digital UNIX earlier than v4 0 29 v4 0 and later 28 HP UX environment 32 v10 2 and later 32 IBM AIX environment 33 IBM AIX v3 2 and later 33 SCO environment 34 SGI 30 IRIX v5 x 30 IRIX v6 x 31 Solaris 2 x 30 Sun OS 4 1 x 29 switch settings 14 26 Unloading a cartridge 21 Unpacking 10 W Write protecting a cartridge 22 ...

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