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Chapter 3

Installation

Page 18

STT20000A Product Manual

6. Secure the drive using the mounting screws. The threaded mounting brackets

are designed for M3.0 metric screws. If you are mounting the drive in a 3.5-inch
bay, use the screw supplied with the drive. Do not substitute other screws.
Using longer screws may damage the drive. If slide rails are needed, use the
plastic slide rails (supplied with the drive in some configurations).

7.

Connect an available power cable to the power connector on the drive. Figure
3-1 shows the location of the power connector. The recommended power
mating connector requires an AMP 1-48024-0 housing with AMP 60617-1 pins
or equivalent.

Note:

Turn off all power before inserting connectors.

8.

Connect the interface cable with the connector on the rear of the unit. When
you make the connection, be sure pin 1 of the connector aligns with pin 1 on
the cable connector. See Figure 3-1 for the location of the connector and the
Pin 1 location.

Note:

Pin 1 on the connector on the rear of the drive is to your right as you look at

the back of the drive (right side up). (See Figure 3-1.) Your cable should
have Pin 1 highlighted by a color or dark strip. Be sure to mate Pin 1 on the
cable to Pin 1 on the drive. Failure to do so could make the drive
inoperative. Also, the cable is keyed to prevent incorrect installation. Make
sure that the blocked pin in the cable connector coincides with the missing
pin on the connector on the rear of the drive. (See Figure 3-1.)

9.

Replace the computer cover. Be sure to reconnect any peripherals that you
disconnected during the installation.

10. Plug the computer and any peripherals into an AC power outlet.

11. Start the computer and install your tape backup software.

Mounting dimensions

Figures 3-4 and 3-5, respectively, show the location of the mounting holes for the
internal drive without and with mounting brackets.

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Содержание STT20000A

Страница 1: ...STT20000A ATAPI Minicartridge Drive Product Manual...

Страница 2: ...e trademarks or registered trademarks of their owners Seagate reserves the right to change without notice product offerings or specifications Seagate Technology provides this manual as is without warr...

Страница 3: ...different outlet so that the computer and receiver are on different branch circuits If necessary you should consult the dealer or an experienced radio television technician for additional suggestions...

Страница 4: ...right is conveyed to reproduce or translate any item herein disclosed without express written permission from Seagate Technology Seagate Technology provides this manual as is without warranty of any...

Страница 5: ...pecifications 9 Performance specifications 10 Environmental requirements 11 Reliability 12 Mean Time Between Failures 12 Mean Time To Repair 12 Recommended tapes 13 Regulatory compliance 13 Installati...

Страница 6: ...gister 32 Error Register 33 Feature Register 33 Supported ATA Commands 34 Execute Drive Diags 90h 34 Idle Immediate E1h 34 Standby Immediate E0h 34 Check Power Mode E5h 34 Sleep E6h 34 Set Features EF...

Страница 7: ...te Filemark command 63 Write Buffer download microcode command 64 Tape format 65 Introduction 65 Tape partitioning 65 Track positions 65 Track numbering 66 Track format 66 Frames 66 Blocks 68 Tape ref...

Страница 8: ...Table of Contents Page viii STT20000A Product Manual Glossary 75 Acronyms and measurements 78 Acronyms and abbreviations 78 Units of measurement 80...

Страница 9: ...ndent on the specific system and the nature of the files being compressed This drive optimizes throughput through the Seagate feature FastSenseTM This feature enables the drive to automatically sense...

Страница 10: ...wth of small networks the need for cost effective high capacity storage has grown The STT20000A is ideal for high end standalone computers workstations and small networks Built using long wearing mate...

Страница 11: ...mation interchange Typical uncompressed capacities of 10 gigabytes on 740 foot TR 5 media Typical compressed capacities of 20 gigabytes on 740 foot TR 5 media Transfer rate optimized with FastSense au...

Страница 12: ...0 megabytes Mbytes on 9 tracks QIC 24 1982 to the to the 20 Gbyte capacity achievable with the STT20000A minicartridge drive on a single Travan TR 5 cartridge The streaming tape intelligence in the ST...

Страница 13: ...enables qualified OEMs needing to revise the drive firmware to do so rapidly and at a reduced cost Flash EEPROM should also prolong the life cycle of a drive because many new techniques such as incre...

Страница 14: ...rovides cautions unpacking tips inspection information and installation connection steps including cabling requirements and connector pinouts 4 Drive operation and maintenance Explains the simple oper...

Страница 15: ...d tapes Tape capacities and formats Regulatory compliance Physical specifications The physical specifications of the STT20000A are listed in the following table Specification Drive for 3 5 Inch Mount...

Страница 16: ...20000A 3 5 Inch mount general dimensions 4 00 in 101 6 mm 6 36 in 161 5 mm 0 157 in 4 mm 4 00 in 101 6 mm 1 00 in 25 4 mm Figure 2 2 STT20000A 5 25 Inch mount general dimensions 1 685 42 8mm 5 87 149...

Страница 17: ...values Specification Measurement DC Voltage 12 VDC 5 VDC Voltage Tolerance 10 5 Operational Current 2 0 amps 1 0 amp Standby Current 0 2 amp 0 6 amp Peak 2 2 amps max Power Sequence None None Ripple...

Страница 18: ...e up to 120 Mbytes min compressed Data transfer rate 489 733 1 000 Kbytes per second FastSense Tape speed Read Write Search Rewind 46 70 or 94 ips 90 ips maximum Recording method Serpentine Recording...

Страница 19: ...midity 20 to 80 non condensing1 5 to 95 non condensing2 Maximum wet bulb temperature 78 8 F 26 C No condensation Altitude 1000 to 15 000 feet 1000 to 50 000 feet Vibration Peak to Peak Displacement 0...

Страница 20: ...riods Operational time is assumed to be 20 of the power on time Operational time is the time the tape is loaded Note Seagate does not warrant the stated MTBF as representative of any particular unit i...

Страница 21: ...950 IEC 950 UL 1950 Canadian Dept of Communications Class B EN55022 CISPR 22 with additional CE Mark test requirements Class B FCC Class B Part 15 Use the STT20000A only in equipment where the combin...

Страница 22: ...Chapter 2 Specifications Page 14 STT20000A Product Manual Notes...

Страница 23: ...rform the installation at a static safe workstation If one is not available follow these guidelines as you install the drive unit Work in an uncarpeted area To protect the drive from static electricit...

Страница 24: ...after the drive has been installed The default setting is Slave mode with a jumper over pin 3 and pin 4 Your system setting may vary so be sure to check your computer or ATAPI controller manual to det...

Страница 25: ...er removed remove the face plate from the drive bay in which you plan to install the drive Refer to the manual that you received with your computer for instructions about removing the face plate if ne...

Страница 26: ...of the connector aligns with pin 1 on the cable connector See Figure 3 1 for the location of the connector and the Pin 1 location Note Pin 1 on the connector on the rear of the drive is to your right...

Страница 27: ...n 70 mm 1 220 in 31 mm 0 315 in 8 mm 0 2 in 5 mm 0 157 in 4 mm 1 0 in 25 4 mm 4 0 in 102 6 mm 3 7 in 94 mm Figure 3 5 Mounting holes on internal drive with mounting brackets 5 49 in 139mm 3 12 in 79mm...

Страница 28: ...Bus bit 66 Host Device 6 DD9 Data Bus bit 9 Host Device 7 DD5 Data Bus bit 6 Host Device 8 DD10 Data Bus bit 10 Host Device 9 DD4 Data Bus bit 4 Host Device 10 DD11 Data Bus bit 11 Host Device 11 DD3...

Страница 29: ...able Select Device 29 DMACK DMA Acknowledge Host 30 GND Ground N A 31 INTRQ Interrupt Request Device 32 10CS16 16 Bit I O Device 33 DA1 Device Address Bit 1 Host 34 PDIAG Passed Diagnostics Device 35...

Страница 30: ...Chapter 3 Installation Page 22 STT20000A Product Manual Notes...

Страница 31: ...ront panel LED Using cartridges Loading revised firmware updating flash EEPROM Drive maintenance and troubleshooting instructions Front panel LED The front panel of the Travan drive see Figure 4 1 con...

Страница 32: ...ed it is held firmly in place by the drive s positive locking mechanism Caution DO NOT remove a tape cartridge while the drive is active Complete any tape operations and wait until the amber LED is OF...

Страница 33: ...you want to make sure that important data on the tape will not be overwritten Figure 4 4 shows the cartridge with the switch in the non protected read write or unlocked position Figure 4 4 Travan cart...

Страница 34: ...steady rate as the firmware upgrade continues Approximately 45 seconds later the drive resets internally and the tape moves back and forth then stops 5 The LED light will go off and remain off Double...

Страница 35: ...he cartridge free of moisture Do not wet or submerge a cartridge in any liquid Do not expose the cartridge to temperature extremes Allow the cartridge to assume room temperature slowly Retensioning th...

Страница 36: ...d 3 Use a new swab saturated with 90 isopropyl alcohol to wipe the capstan The capstan is the flat roller to the left of the head as shown in Figure 4 6 Rotate the capstan until its entire surface is...

Страница 37: ...s previously instructed Then try the operation again If problems persist contact your tape drive supplier or Seagate technical support at US and Canada 1 800 SEAGATE 1 800 732 4283 Outside US and Cana...

Страница 38: ...Chapter 4 Drive operation and maintenance Page 30 STT20000A Product Manual Notes...

Страница 39: ...e use of several ATA 2 signals and ATAPI commands that are either vague or optional in the QIC 157 specification ATA 2 Interface The information about the ATA 2 interface is presented in the following...

Страница 40: ...h EBh Drive Head 00 00 00 During an ATA soft reset or aborted ATA command the host view of the DSC bit Status register will be cleared along with the DRDY bit Any ATAPI command including ATAPI Identif...

Страница 41: ...verable data might be left in the buffer 0 ILI Illegal Length Indication This bit is set when an illegal length block is read Sense Status also indicates ILI Feature Register The following layout repr...

Страница 42: ...generate an interrupt Although the drive has no actual power saving features this command is emulated for software compatibility Standby Immediate E0h This command causes the device to set its Power...

Страница 43: ...Mode Feature If the Set Transfer Mode feature 03h is received the Sector Count ATAPI Interrupt Reason register is used to set the transfer mode based on the following table Any transfer modes not list...

Страница 44: ...and other parameters in the host ATA IDE interface The following table defines the values returned by the drive Word Description Value Meaning 0 General Configuration 81C0h ATAPI Streaming Tape Remov...

Страница 45: ...Multi Word DMA Cycle Time 0078h Mode 2 120 nanoseconds 67 Minimum PIO Cycle Time w o IORDY 0078h Mode 4 120 nanoseconds 68 Minimum PIO Cycle Time with IORDY 0078h Mode 4 120 nanoseconds 69 255 Reserve...

Страница 46: ...N REQUEST SENSE Null status if DSC not set 08h buffer READ Delay occurs if first READ is not READ 0 blocks 0Ah buffer WRITE Write 0 not required to initialize DSC 10h Y WRITE FILEMARK Flush always WF...

Страница 47: ...Resets Error Counts 4Dh LOG SENSE Contains Error Counts WRITE and READ and tape capacity Reserved Fields Unless otherwise stated all reserved and unsupported fields are not verified when the drive ac...

Страница 48: ...EOD pattern The Use Count field of the Control Frame is incremented from its previous value This action results in a logical erasure of the current partition If partition 0 is erased partition 1 becom...

Страница 49: ...ed values Note Much of the information returned by this command is redundant with the ATAPI Identify Device command response Byte Description Value Meaning 0 Peripheral Device Type 01h Streaming Tape...

Страница 50: ...nd includes implicit rewind and select partition 0 operations The DSC bit is reset 0 after this command is accepted and is set 1 when the drive has initialized and is ready REQUEST SENSE can then be u...

Страница 51: ...to the specified partition then attempts to locate before the specified logical block All addresses are interpreted as logical A locate to Block 0 in any partition is treated like a rewind to BOP and...

Страница 52: ...Parameter List Length 8 LSB 9 Reserved The PC Page Control field is 01 for current values The Parameter List Length field specifies the number of data bytes to transfer If the PCR bit is 1 and the Pa...

Страница 53: ...of data is being requested The Parameter Pointer field allows requested parameter data to begin from a specific parameter code The Allocation Length field specifies the number of data bytes to transfe...

Страница 54: ...er Length 04h 4 byte Counter 16 19 Number of Retries N N N N Counter Value 20 21 Parameter Code 8020h Even Tracks ECC Corrections Code 22 Parameter Bits 40h Device Controlled Counter 23 Parameter Leng...

Страница 55: ...age Length 00 20h 32 Bytes Following 4 5 Parameter Code 0001h Remaining Capacity Part 0 Code 6 Parameter Bits 40h Device Controlled Counter 7 Parameter Length 04h 4 byte Counter 8 11 Remaining Capacit...

Страница 56: ...hat partition Capacities are multiplied by 1024 to determine the number of bytes These values are conservative estimates The Parameter bit TSD not shown is zero implying that the drive can save parame...

Страница 57: ...ansferred to the device as data A Parameter List Length of zero indicates that no data is transferred Mode Sense should be issued prior to Mode Select to determine the supported pages page lengths and...

Страница 58: ...the number of data bytes to transfer The following pages are supported for Mode Select and Mode Sense commands Page Code Description 11h Medium Partition Page 2Ah Capabilities and Mechanical Status P...

Страница 59: ...Kbytes sec Mode Block Descriptor The Block Descriptor is returned to the MODE SENSE command unless the DBD bit in the command packet is set to one If the Block Descriptor is not sent the Block Descrip...

Страница 60: ...tus Page The following table describes the Mode Capabilities and Mechanical Status Pages Byte Description Value Meaning 0 Page Code 2Ah Capabilities and Mechanical Status Page 1 Page Length 12h 18 Byt...

Страница 61: ...4 Reserved Format Fill Byte 00h Not used MFM mode is read only 5 BSEG 20h Number of Blocks per Segment 32 6 7 SEGTRK NNNN Number of Segments per Track 8 9 TRKS NN Number of Tracks per Tape 10 MAXSECT...

Страница 62: ...er length of 0 indicates that no data is to be transferred but will initiate a read ahead The DSC bit is reset 0 after this command is accepted and is set 1 when at least 52 blocks in the buffer are a...

Страница 63: ...Read Position layout Byte Description Value Meaning 0 BOP EOP BPU nn 80h Beginning of Partition 40h End of Partition 04h Block Position Unknown 1 Partition Number 00 01h Current Partition bit 0 2 3 Re...

Страница 64: ...tion that is guaranteed is the host logical block position The First and Last Block Locations both return the same host location and Blocks and Bytes in Buffer are reported as 0 Because Read Position...

Страница 65: ...is set and DSC is reset is during writes at logical end of media DSC remains a buffer indicator and CHK is set to indicate EOM which is a warning not an error If a command completes with a check erro...

Страница 66: ...l Sense Length 0Ah 10 bytes following 8 11 Command Specific Information 00h Not Supported 12 Additional Sense Code ASC NN 13 Additional Sense Code Qualifier ASCQ NN 14 Field Replaceable Unit Code 00h...

Страница 67: ...The Rewind command first ensures that all buffered write data has been transferred to the medium then causes the device to position to BOP of the current partition The DSC bit is reset 0 after this co...

Страница 68: ...he only Space codes that are supported are 001b Filemarks and 011b End of Data on Current Partition For Space Filemarks negative count 2s compliment indicates Space Filemarks Reverse The DSC bit is re...

Страница 69: ...nd It s purpose is to indicate the cartridge state no cartridge or drive fault cartridge becoming ready or cartridge drive ready If the drive is busy with a previous command DSC reset the drive will w...

Страница 70: ...blocks to be transferred A transfer length of 0 indicates that no data is to be transferred but is used on some drives to put DSC into write buffer mode The DSC bit is reset 0 after this command is a...

Страница 71: ...s DSC 0 and returns completion status Any data remaining in the buffer is then written to tape flush synchronize and if the count is 1 a Filemark is written In any case an EOD is then written The Imme...

Страница 72: ...SB 7 Transfer Length 8 LSB 9 Reserved The Write Buffer command is intended only to provide a method for downloading new drive microcode firmware into Flash EPROM so the only valid MODE is 101 download...

Страница 73: ...ion of one 740 foot long 0 315 inch 8 0 mm wide Travan TR 5 tape Using software data compression these capabilities are typically doubled The recording format and partitioning support Quick File Acces...

Страница 74: ...locks physically recorded on the tape rather this type of numbering is the block numbering system used by the host computer Often the host system operates with logical blocks that are a different size...

Страница 75: ...of the following track Frames are not split around corner turns The general frame layout 108 data blocks and 20 ECC blocks is illustrated in Figure 6 2 Figure 6 2 General frame layout Data Block 0 Da...

Страница 76: ...on blocks Filemark blocks Setmark blocks and Cancelmark blocks contain specific types of information Filemark blocks are physical blocks written to tape in response to a host WRITE FILEMARKS command S...

Страница 77: ...Oersted media write equalization provides the benefit of compatibility with Magneto Resistive MR heads MR heads are prone to saturation by low frequency flux with high energy content Equalization redi...

Страница 78: ...Chapter 6 Tape Format Page 70 STT20000A Product Manual Notes...

Страница 79: ...ware and the latest technology This drive uses second generation custom LSIs for efficient circuit layout and increased reliability with low power consumption The drive also uses flash EEPROM devices...

Страница 80: ...LED is not lit when the tape is positioned at BOT Capstan drive motor assembly In the STT20000A the cartridge is driven by the capstan belt motor assembly which is on a linear slide The cartridge is l...

Страница 81: ...terial composition of the head also results in exceptional wear characteristics resulting in stable performance throughout the life of the drive Flash EEPROM Because the drive uses flash EEPROM electr...

Страница 82: ...re 7 2 shows a Travan minicartridge Figure 7 2 Travan minicartridge The cartridge also provides for write protection so that existing data on the cartridge is not overwritten A write protected cartrid...

Страница 83: ...f two holes punched side by side in the tape Byte A group of 8 binary bits operated on as a unit Cancelmark A negative Filemark or Setmark When a Cancelmark follows as the first block in the next fram...

Страница 84: ...ching end of the usable recording area in the forward direction File A logical unit of information Filler block A block containing no valid information in its data field Fixed Disk A non removable har...

Страница 85: ...at maintains continuous tape motion without the requirement to start and stop within an inter block gap Tape Drive A peripheral storage device that records data onto removable tape cartridges Used to...

Страница 86: ...Disc CMOS Complementary Metal Oxide Semiconductor CSA Canadian Standard Association DMA Direct Memory Access ECC Error Correction Code ECMA European Computer Manufacturers Association EEPROM Electron...

Страница 87: ...R Mean Time To Repair OEM Original Equipment Manufacturer PCB Printed Circuit Board QIC Quarter Inch Cartridge Drive Standards Incorporated RAM Random Access Memory RLL Run Length Limited SCSI Small C...

Страница 88: ...ted sound power reference one picowatt F Fahrenheit ft foot or feet g acceleration of a free falling body equal to 32 17 feet per second2 Gbyte gigabyte Hz Hertz in inch k kilo Kbyte kilobyte kg kilog...

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