Instruction/ maintenance manual of the product STT2401A Quantum Audio
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. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . STT2401A, STT3401A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Travan 40 tape drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
© 2002 Seagate Removable Storage Solutions LLC. All rights reserved Part Number 100249522 Seagate and the Seagate logo are registered trademarks of Seagate Technology LLC. Other product names are trademarks or registered trademarks of their owners. Seagate reserves the right to change, without notice, p roduct offerings or specifications.
FCC Notice This equipment generates and uses r adio frequency energy and, if not installed and used properly — that is, in strict accordance with the manufacturer’s instructions — may cause interference to radio communications or radio and television reception.
Table of Contents Page iv Seagate Travan 40 Product Manual Table of Contents Introduction 1 Drive overview .............................................................................................................. 1 Key features ..................
Table of Contents Seagate Travan 40 Product Manual Page v Manual ejection ............................................................................................. 18 Setting the write - protect switch .............................................
Table of Contents Page vi Seagate Travan 40 Product Manual Page 31h — Sp ecial Information Definitions .................................................. 46 Page 33h — Special Information in STT31401A mode ........................................ 47 Page 33h — Special Information Definitions .
Table of Contents Seagate Travan 40 Product Manual Page vii Tape partitioning ...................................................................................................... 114 Track positions ..................................................
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Introduction Chapter 1 Seagate Travan 40 Product Manual Page 1 Introduction Drive overview The Seagate® STT3401A and STT2401A extend the Seagate family of one - inch high Travan drives that feature high performance, high re liability, and quiet operation.
Chapter 1 Introduction Page 2 Seagate Travan 40 Product Manual W ith the availability of greate r capacity disc drives and the growth of small networks, the need for cost - effective, high - capacity storage has grown. The STT3401A is ideal for standalone computers, workstations, and small networks.
Introduction Chapter 1 Seagate Travan 40 Product Manual Page 3 Figure 3 Sample ATAPI configurations Minicartridge technology overview Having evolved from the original mass - storage medium — reel - .
Chapter 1 Introduction Page 4 Seagate Travan 40 Product Manual Flash EEPROM The Seagate Travan drives incorporate leading - edge technology in the flash EEPROM, which is useful should the drive's firmware need to be upgraded.
Specifications Chapter 2 Seagate Travan 40 Product Manual Page 5 Specifications Performance specifications The following table lists the performance specifications for the Seagate STT2401A and STT3401A tape drives. Feature Specification Capacity 20.0 Gbytes — Travan 40 cartridge (native) (40.
Chapter 2 Specifications Page 6 Seagate Travan 40 Product Manual Physical specifications The physical specifications of the STT3401A and STT2401A are listed in the following table. Specification Drive for 3.5 - inch mount Drive for 5.2 5 - inch mount Height 1.
Specifications Chapter 2 Seagate Travan 40 Product Manual Page 7 Figure 5 STT2401A (5.25 - inch mount) general dimensions Power supply specifications The following table lists the power supply requirements for the Travan 40 drives. Power specifications are measured at the tape drive power connector and are nominal values.
Chapter 2 Specifications Page 8 Seagate Travan 40 Product Manual Power use Seek Load/unload Capstan startup Standby 9.6 watts 9.6 watts 38 watts 0.4 watts 4.0 watts 3.0 watts 6.0 watts 2.3 watts Power connector The following table lists pin assignment s for the power connector for the drive.
Specifications Chapter 2 Seagate Travan 40 Product Manual Page 9 Shock (1/2 sine wave) 7Gs peak, 11 msec (retries may be occur) 50 Gs peak, 11 msec Aco ustic level operational (A - wt sum) 55 dBA maximum (measured at operator position, per ISO 7779) — Shock (1/2 sine wave) 2.
Chapter 2 Specifications Page 10 Seagate Travan 40 Product Manual be returned to the factory in its original packaging. Contact your distributor, dealer, your computer system company, or your Seagate sales representative to arrange th e return.
Specifications Chapter 2 Seagate Travan 40 Product Manual Page 11 • Install the drive in an enclosure that limits the user's access t o live parts, gives adequate system stability, and provides the necessary grounding for the drive.
Chapter 4 Drive operation and maintenance Page 12 Seagate Travan 40 Product Manual Before installing the Seagate Travan 40 drive make sure that the jumpers are properly co nfigured for your system. Figure 6 shows the location of the jumper block, as well as master/slave jumper settings for various configurations.
Drive operation and maintenance Chapter 4 Seagate Travan 40 Product Manual Page 13 Installing the drive The STT3401A can be installed in a one - half - inch high by 3.5 - inch form factor drive bay or in a one - inch high by 5.25 - inch form factor (with mounting b rackets).
Chapter 4 Drive operation and maintenance Page 14 Seagate Travan 40 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.
Drive operation and maintenance Chapter 4 Seagate Travan 40 Product Manual Page 15 Figure 8 Mounting holes on STT3401A (withou t mounting brackets) Figure 9 Mounting holes on STT2401A (with mounting b.
Chapter 4 Drive operation and maintenance Page 16 Seagate Travan 40 Product Manual Drive operation and maintenance Introduction This chapter describes important operational procedures for the STT3401A and STT2401A.
Drive operation and maintenance Chapter 4 Seagate Travan 40 Product Manual Page 17 Using Travan cartridges The minicartridges recommended for use with the Travan 40 drive are li sted in Chapter 2. This section describes some operations using the cartridges.
Chapter 4 Drive operation and maintenance Page 18 Seagate Travan 40 Product Manual Figure 12 Unloading a Tape cartridge After removing the cartridge from the drive, place the cartridge in its protective case and store it in a cool, dry location.
Drive operation and maintenance Chapter 4 Seagate Travan 40 Product Manual Page 19 Caut ion. After using the emergency ejection procedure to remove a cartridge, you must restart the drive before inserting a new cartridge. Power must be reapplied to the drive before it will move the loading mechanism into position for inserting a new cartridge .
Chapter 4 Drive operation and maintenance Page 20 Seagate Travan 40 Product Manual Drive maintenance Mini mal maintenance is needed to ensure that your Travan 40 drive operates at peak condition. This section explains how to care for tape cartridges, how to clean the drive head, and what to do if you experience problems with the drive.
Drive operation and maintenance Chapter 4 Seagate Travan 40 Product Manual Page 21 the drive immediately if you ob serve an increase in the number of errors while running your backup software, or if a TapeAlert cleaning message is displayed.
Chapter 4 Drive operation and maintenance Page 22 Seagate Travan 40 Product Manual 1 DRAM Write Miscompare 2 DRAM Write Timed Out 3 DRAM Read Timed Out 4 DMA Timed Out 5 ATAPI Interface Failed 6 SRAM .
Drive operation and maintenance Chapter 4 Seagate Travan 40 Product Manual Page 23 Drive n ot seen during boot - up • Ensure that 5/12 volt power is plugged into tape drive. Insert tape: – If soft load receives tape and tape movement back and forth occurs — power is OK.
Chapter 4 Drive operation and maintenance Page 24 Seagate Travan 40 Product Manual • Hard disc problems can also cause system lock up. Run a hard disc diagnostic utility such as CHKDSK or SCANDISK and repair any error it might find. • Not enough system res ources or a misbehaving memory resident program may cause erratic system behavior.
Drive operation and maintenance Chapter 4 Seagate Travan 40 Product Manual Page 25 • Use Stdiag to perform a write/read test. Retension the tape with Stdiag program. The Stdiag write/read test will overwrite data on the tape. Set “Te st Size” to minimum of 100MB.
Chapter 4 Drive operation and maintenance Page 26 Seagate Travan 40 Product Manual If after a repeat loading of the firmware cartridge the same condition is observed, contact your Seagate sales representative. Firmware upgrade cartridges are available to qualified Seagate OEM customers .
ATAPI Interface Chapte r 5 Seagate Travan 40 Product Manual Page 27 ATAPI interface Introduction The Seagate Travan 40 drives come with an ATA Packet Interface (ATAPI) controller for communications between the host computer and the drive. The drive supports the QIC - 157 standard interface.
Chapter 5 ATAPI Interface Page 28 Seagate Travan 40 Product Manual Pin Assignment Description Source 21 DMARQ DMA Request Device 22 GND Ground N/A 23 DIOW - I/O Write Host 24 – REQ Ground N/A 25 –.
ATAPI Interface Chapte r 5 Seagate Travan 40 Product Manual Page 29 Op Code (Hex) Command See Page 15 MODE SELECT 51 17 RELEASE UNIT 72 19 ERASE 29 1A MODE SENSE 61 1B LOAD / UNLOAD 33 1D SEND DIAGNOS.
Chapter 5 ATAPI Interface Page 30 Seagate Travan 40 Product Manual ERASE (Group 0, Op. Code 19) The ERASE command will erase the entire tape if the tape is positioned at BOT.
ATAPI Interface Chapte r 5 Seagate Travan 40 Product Manual Page 31 INQUIRY (Group 0, Op. Code 12) The INQUIRY command allows the Host to determine the configuration of the tape drive connected to the bus.
Chapter 5 ATAPI Interface Page 32 Seagate Travan 40 Product Manual ANSI Version: This field indicates the ANSI compliance level. A value of 001b indicates compliance with SCSI Standard X3.131 - 1986. A value of 010b indicates compliance with QIC - 121 (SCSI - 2).
ATAPI Interface Chapte r 5 Seagate Travan 40 Product Manual Page 33 LOAD/UNLOAD (Group 0, Op. Code 1B) This command has three functions. • To position (LOAD) a tape cartridge to BOT • To eject (UNLOAD) a cartridge • To retension the installed cartridge in conjunction with a Load/Unload operation Not e.
Chapter 5 ATAPI Interface Page 34 Seagate Travan 40 Product Manual LOAD/UNLOAD Command (EOT, RET and LOA Bits) Initial State EOT RET LOA Action Final State Loaded, Ready 0 0 0 Position to BOT and set .
ATAPI Interface Chapte r 5 Seagate Travan 40 Product Manual Page 35 LOCATE (Group 1, Op. Code 2B) The LOCATE command causes the target to position the logical unit to the specified block address in a specified partition.
Chapter 5 ATAPI Interface Page 36 Seagate Travan 40 Product Manual LOG SELECT (G roup 2, Code 4C) The LOG SELECT command provides a means for the Initiator to manage statistical information maintained by the tape drive about itself.
ATAPI Interface Chapte r 5 Seagate Travan 40 Product Manual Page 37 LOG SENSE (Group 2, Op. Code 4D) The LOG SENSE command provides a means for the Initiator to retrieve statistical information maintained by the tape drive about the tape drive.
Chapter 5 ATAPI Interface Page 38 Seagate Travan 40 Product Manual Page 00h — Supported Log Page Data Bits Byte 7 6 5 4 3 2 1 0 Hex 0 0 0 Page Code 00 1 0 0 0 0 0 0 0 0 00 2 3 MSB Additional Page Le.
ATAPI Interface Chapte r 5 Seagate Travan 40 Product Manual Page 39 D Parameter Code LSB 01 E DU DS TSD ETC TMC 0 LP 40 F Parameter Length 04 10 11 12 13 MSB Total Errors Corrected LSB XX XX XX XX NOT.
Chapter 5 ATAPI Interface Page 40 Seagate Travan 40 Product Manual Note: Fields marked with (*) will reset on power cycle, SCSI reset, cartridge insertion, rewind, or PCR.
ATAPI Interface Chapte r 5 Seagate Travan 40 Product Manual Page 41 • Drive hardware defects • Worn out media or wrong media • Expired cleaning tapes • Abno rmal error conditions The TapeAlert information is accessed via a Log Sense page, and configuration is via a MODE SELECT page.
Chapter 5 ATAPI Interface Page 42 Seagate Travan 40 Product Manual NOTE: When a flag is cleared by reading th e TapeAlert Log page, a flag cannot be set again until the error condition is removed (e.g., the specified corrective action has been taken).
ATAPI Interface Chapte r 5 Seagate Travan 40 Product Manual Page 43 No. Flag Type Required Host Message Cause supplier helpline. 7 Media Life W The tape cartri dge has reached the end of its calculated useful life: 1. Copy any data you need to another tape 2.
Chapter 5 ATAPI Interface Page 44 Seagate Travan 40 Product Manual No. Flag Type Required Host Message Cause 3. Restart the operation. 31 Hardware B C The tape drive has a hardware fault: 1. Turn the tape drive off and on again. 2. Restart the operation.
ATAPI Interface Chapte r 5 Seagate Travan 40 Product Manual Page 45 Page 31h — Tape Capacity Page Data Bits Byte 7 6 5 4 3 2 1 0 Hex 0 0 0 Page Code 31 1 0 0 0 0 0 0 0 0 00 2 3 MSB Additional Page L.
Chapter 5 ATAPI Interface Page 46 Seagate Travan 40 Product Manual Page 31h — Special Information Data Bi ts Byte 7 6 5 4 3 2 1 0 Hex 0 0 0 Page Code 31 1 0 0 0 0 0 0 0 0 00 2 3 MSB Additional Page .
ATAPI Interface Chapte r 5 Seagate Travan 40 Product Manual Page 47 Page 33h — Speci al Information in STT31401A mode Data Bits Byte 7 6 5 4 3 2 1 0 Hex 0 0 0 Page Code 33 1 0 0 0 0 0 0 0 0 00 2 3 M.
Chapter 5 ATAPI Interface Page 48 Seagate Travan 40 Product Manual Data Bits Byte 7 6 5 4 3 2 1 0 Hex 34 Parameter Length 04 35 38 MSB Longest Time Between Cleanings (in Minutes) LSB XX XX XX XX 39 3A.
ATAPI Interface Chapte r 5 Seagate Travan 40 Product Manual Page 49 1F - 22 Tape Moved The length of tape (estimated in feet) passed over the head since the last head cleaning. The field is incremented by 740 feet at EOT and BOT when tape motion is reversed.
Chapter 5 ATAPI Interface Page 50 Seagate Travan 40 Product Manual follows. 6 DU The Disable Update bit must be set to 0, indicating the drive updates parameter values for all events. DS The Disable Save bit is always set to 1, indicating the drive does not save parameter values.
ATAPI Interface Chapte r 5 Seagate Travan 40 Product Manual Page 51 MODE SELECT (Group 0, Op. Code 15) The Host issues the MODE SELECT command to establish certain drive parameters. These parameters are sent to the drive as data. The parameters established by this command are not unique to the Initiator issuing the command.
Chapter 5 ATAPI Interface Page 52 Seagate Travan 40 Product Manual cause of the error. While writing, the drive will re vert to Unbuffered Mode when Logical Early Warning (LE W) is reached. A RE W IND issued at this point will cause the drive to rewind to BOT and return to Buffered Mode.
ATAPI Interface Chapte r 5 Seagate Travan 40 Product Manual Page 53 Page Code 01h — Error Recovery and Reporting Parameters Data Bits Byte 7 6 5 4 3 2 1 0 H ex 0 0 0 Page Code 01 1 Additional Page L.
Chapter 5 ATAPI Interface Page 54 Seagate Travan 40 Product Manual Page Code 10h — Device Configuration Parameters Data Bits Byte 7 6 5 4 3 2 1 0 Hex 0 0 0 Page Code (10h) 10 1 Additional Page Lengt.
ATAPI Interface Chapte r 5 Seagate Travan 40 Product Manual Page 55 Write Delay Time: This field indicates the maximum time, in 100 millisecond increments, that the drive shall retain buffered data without subsequent write or sync hronizing commands before forcing it to the media.
Chapter 5 ATAPI Interface Page 56 Seagate Travan 40 Product Manual EEG: Enable EOD Generation — When set to 1, this bit indicates that the logical unit shall generate the appropriate EOD area, as determined by the EOD Defined fi eld. A value of 0 indicates that EOD generation is disabled.
ATAPI Interface Chapte r 5 Seagate Travan 40 Product Manual Page 57 Media Format Recognition field is intended for use by the MODE SENSE command, in which it is set to 03h, indicating that the drive is capable of recognizi ng the format and partition of the tape automatically.
Chapter 5 ATAPI Interface Page 58 Seagate Travan 40 Product Manual reported in the method specified by the MRIE value, except with the additional Sense Code set to 0x5DFF.
ATAPI Interface Chapte r 5 Seagate Travan 40 Product Manual Page 59 MRIE (Default set to 0x3): This field indicates the method used by the target to report informational exception conditions (note that this is standard SCSI terminology and is not related in any way to the “Information” severity level for t he flags).
Chapter 5 ATAPI Interface Page 60 Seagate Travan 40 Product Manual 0×6: Only report informational exception condition on request . Th is method instructs the device server to preserve information exception(s) information.
ATAPI Interface Chapte r 5 Seagate Travan 40 Product Manual Page 61 MODE SENSE (Group 0, Op. Code 1A) The MODE SENSE command provides t he Host with information pertaining to the configuration of the drive. The drive does not disconnect from the Initiator while executing this command.
Chapter 5 ATAPI Interface Page 62 Seagate Travan 40 Product Manual Page Code Description 20h Forced Streaming Page Will Be Returned 2Ah Capabilities and Mechan ical Status Page 3Fh All Pages (01h through 3Fh) Will Be Returned Refer to MODE SELECT command for a description of the Parameter Pages.
ATAPI Interface Chapte r 5 Seagate Travan 40 Product Manual Page 63 Speed Code: Speed code values are listed in the table below. The Speed C ode may be set explicitly by MODE SELECT command, or implicitly when AVC ( Auto - Throttle) is set to 1 (bit 4, byte 8 of page code 10h).
Chapter 5 ATAPI Interface Page 64 Seagate Travan 40 Product Manual Page Code 2A Capabilities and Mechanical Status Page Data Bits Byte 7 6 5 4 3 2 1 0 Hex 0 0 0 Page Code (2A) 2A 1 Page Length (12h) 1.
ATAPI Interface Chapte r 5 Seagate Travan 40 Product Manual Page 65 PREVENT: If the PREVENT bit is set, the device de faults to the Prevent state after power - up. LOCKED: If the LOCKED bit is set, the volume is locked. LOCK: If the LOCK bit is set, the device supports locking the volume using the PREVENT/ALLO W MEDIA REMOVAL command.
Chapter 5 ATAPI Interface Page 66 Seagate Travan 40 Product Manual PREVENT/ALLOW MEDIA REMOVAL (Group 0, Op. Code 1E) This command is used to prevent or allow the removal of the tape cartridge.
ATAPI Interface Chapte r 5 Seagate Travan 40 Product Manual Page 67 READ (Group 0, Op. Code 08) The READ command transfers the specified amount of data from the tape drive to the Initiator. The command terminates when one of the following conditions occurs: • The Transfer length specified in the CDB has been satisfied.
Chapter 5 ATAPI Interface Page 68 Seagate Travan 40 Product Manual READ process (e.g., RE W IND). S ee REQUEST SENSE, bytes 14 - 15 and LOG SENSE, Page 3. Data Under - Run Counter: This counter is incremented each time a buffer overrun causes the tape to reposition.
ATAPI Interface Chapte r 5 Seagate Travan 40 Product Manual Page 69 READ BUFFER (Group 1, Op. Code 3C) The READ BUFFER command will cause the contents of the drive’s data buffer to be returned to the Host and is intended to be used in conjunction with the WRITE BUFFER command as a Diagnostic tool.
Chapter 5 ATAPI Interface Page 70 Seagate Travan 40 Product Manual READ BUFFER Header (Mode 00h) Data Bits Byte 7 6 5 4 3 2 1 0 Hex 0 0 0 0 0 0 0 0 0 00 1 2 3 MSB Buffer Capacity LSB XX XX XX Buffer Capacity: This field specifies the total number of bytes in the drive’s buffer.
ATAPI Interface Chapte r 5 Seagate Travan 40 Product Manual Page 71 READ POSITION (Group 1, Op. Code 34) The READ POSITION command reports the current position of the logic al unit and any data blocks in the buffer. No tape movement shall occur as a result of the command.
Chapter 5 ATAPI Interface Page 72 Seagate Travan 40 Product Manual BOP: The Beginning Of Partition bit, if set to 1, indicates that the lo gical unit is at the beginning - of - partition in the current partition. EOP: The End Of Partition bit, if set to 1, indicates that the logical unit is at the end - of - partition in the current partition.
ATAPI Interface Chapte r 5 Seagate Travan 40 Product Manual Page 73 REQUEST SENSE (Group 0, Op. Code 03) Information pertinent to the completion of a command is obtained by the REQUEST SENSE command.
Chapter 5 ATAPI Interface Page 74 Seagate Travan 40 Product Manual Data Bits Byte 7 6 5 4 3 2 1 0 Hex 11 Field Pointer LSB XX 12 0 CNI 0 WP PEO M UDE BNL FIL XX 13 0 0 NDT 0 BOM BPE 0 0 XX 14 15 MSB D.
ATAPI Interface Chapte r 5 Seagate Travan 40 Product Manual Page 75 Command Specific Information: This field contains information that depends on the command that was last executed. Further meaning for this field is defined within the command description.
Chapter 5 ATAPI Interface Page 76 Seagate Travan 40 Product Manual Code Travan 7 Compatibility Cartridge Type 00h N/A No cartridge, cleaning cartridge, or type unknown 85h Read / Write Travan 5, NS20 95h N/A Travan 7 Filemark Count: This is the number of Filemarks encou ntered since the tape was last at BOM.
ATAPI Interface Chapte r 5 Seagate Travan 40 Product Manual Page 77 Sense Key (hex value) Type Meaning not the same as the physical EOM. 9 Vendor Unique This Sense Key is available for reporting vendor unique conditions (Not Used). A Copy Aborted A COPY command was aborted due to an error on the source or destination device (Not Supported).
Chapter 5 ATAPI Interface Page 78 Seagate Travan 40 Product Manual Sense Key ASC ASCQ Meaning 04 44 00 Hardware error occurred 04 44 81 Fan error 04 47 00 SCSI parity error non - command state 04 47 0.
ATAPI Interface Chapte r 5 Seagate Travan 40 Product Manual Page 79 Sense Key ASC ASCQ Meaning 0D 00 00 Physical end of medium detected.
Chapter 5 ATAPI Interface Page 80 Seagate Travan 40 Product Manual REWIND (Group 0, Op Code 01) When operating in single partition mode, the RE W IND command causes the drive to rewind the tape to the physical Beginning - Of - Partition (BOP) or load point.
ATAPI Interface Chapte r 5 Seagate Travan 40 Product Manual Page 81 SEND DI AGNOSTIC (Group 0, Code 1D) The SEND DIAGNOSTIC command requests the target to perform diagnostic tests on it. Except when the Self - Test bit is one, this command is usually followed by a Receive Diagnostic Results command.
Chapter 5 ATAPI Interface Page 82 Seagate Travan 40 Product Manual SPACE (Group 0, Op. Code 11) The SPACE command provides a means of positioning the tape forward or reverse of the current position. The command can space over data blocks, filemarks, sequential filemarks, or to the End - of - Data.
ATAPI Interface Chapte r 5 Seagate Travan 40 Product Manual Page 83 If Logical Early Warning is encountered, the command continues to normal completion, then reports Check Co ndition with No Sense and EOM set in the Sense Data. NOTE: If RSMK is set in Mode Data Page 10h, Byte 8, Bit 5, Set Marks will be treated as Filemarks when spacing over data.
Chapter 5 ATAPI Interface Page 84 Seagate Travan 40 Product Manual TEST UNIT READY (Group 0, Op Code 00) This command performs a test to ensure that the tape drive is ready and a tape cartridge is installe d. TEST UNIT READY does not initiate the internal diagnostic self - test.
ATAPI Interface Chapte r 5 Seagate Travan 40 Product Manual Page 85 VERIFY (Group 0, Op. Code 13) The VERIFY command performs a Verification Check on a specified number of data blocks on the tape without involving the Host. Verification s tarts at the present position of the tape and continues for the specified number of blocks.
Chapter 5 ATAPI Interface Page 86 Seagate Travan 40 Product Manual WRITE (Group 0, Op. Cod e 0A) The WRITE command transfers the specified amount of data from the Initiator to the tape drive.
ATAPI Interface Chapte r 5 Seagate Travan 40 Product Manual Page 87 WRITE BUFFER (Group 1, Op. Code 3B) T he WRITE BUFFER command is used in conjunction with the READ BUFFER command as a diagnostic tool or for downloading firmware. This command tests the ATAPI Bus and the drive’s Data Buffer.
Chapter 5 ATAPI Interface Page 88 Seagate Travan 40 Product Manual Buffer Offs et: This field specifies where the first data byte received from the Host is to be placed in the Buffer specified by the Buffer ID field. Values greater than 07FFh will give Check Condition , Illegal Request.
ATAPI Interface Chapte r 5 Seagate Travan 40 Product Manual Page 89 WRITE FILEMARK (Group 0, Op. Code 10) This command writes a specified number of Filemark blocks to the tape.
Chapter 5 ATAPI Interface Page 90 Seagate Travan 40 Product Manual be avoided by simply insuring the cartridge is removed from the drive following any WRITE or WRITE FILEMARK operations.
ATAPI Interface Chapte r 5 Seagate Travan 40 Product Manual Page 91 ATA Command Descriptions The following ATA commands are supported. Ge neral Feature Set • EXECUTE DEVICE DIAGNOSTIC • IDENTIFY D.
Chapter 5 ATAPI Interface Page 92 Seagate Travan 40 Product Manual Opcode (Hex) Command Ref. page E3 IDLE 105 E5 CHECK PO WER MODE 93 E6 SLEEP 111 EC IDENTIFY DEVICE 97 EF SET FEATURES 109.
ATAPI Interface Chapte r 5 Seagate Travan 40 Product Manual Page 93 CHECK POWER MODE (ATA Command E5) The CHECK PO WER MODE command allows the Host to determine the power mode of the selected device. The device does not disconnect from the bus while executing this command .
Chapter 5 ATAPI Interface Page 94 Seagate Travan 40 Product Manual DEVICE RESET (ATA Command 08) The Device Res et command enables the Host to reset an individual device without affecting the other device on the same IDE cable. This command shall be accepted when BSY or DRQ is set to one, DRDY is cleared to 0, or DMARQ is asserted.
ATAPI Interface Chapte r 5 Seagate Travan 40 Product Manual Page 95 EXECUTE DEVICE DIAGNOSTIC (ATA Command 9 0) This command shall perform the internal diagnostic tests implemented by the device. The DEV bit in the Device/Head register is ignored. Both devices, if present, shall execute this command regardless of which device is selected.
Chapter 5 ATAPI Interface Page 96 Seagate Travan 40 Product Manual Diagnostic Code: When this code is in the Error register of Device 0: Code (hex) Device 0 Meaning Device 1 Meaning 00, 02 - 7F Failed. Bits 6:1 cont ain an error code Passed or is not present 01 Passed Passed or is not present 81 Passed Failed.
ATAPI Interface Chapte r 5 Seagate Travan 40 Product Manual Page 97 IDENTIFY DEVICE (ATA Command EC) This command allows an A TA (not ATAPI) device to report its capabilities to the Host. Since this device supports the PACKET feature set, this command will be aborted.
Chapter 5 ATAPI Interface Page 98 Seagate Travan 40 Product Manual IDENTIFY PACKET DEVICE (ATA Command A1) This command allows an ATAPI (not ATA) device to report its capabilities to the Host. The data returned are very extensive and detailed. Please refer to the ATA - 4 document for complete details.
ATAPI Interface Chapte r 5 Seagate Travan 40 Product Manual Page 99 Host Taskfile Registers — Outputs Data Bits Host Taskfile Register 7 6 5 4 3 2 1 0 HEX Error rsvd tag type (not supported) MCH ABR.
Chapter 5 ATAPI Interface Page 100 Seagate Travan 40 Product Manual Word(s) Starting Offset (hex) Description of Contents Value (hex) 49 62 Capabilities: 15 1=interleaved DMA support 14 1=command queu.
ATAPI Interface Chapte r 5 Seagate Travan 40 Product Manual Page 101 Word(s) Starting Offset (hex) Description of Contents Value (hex) 71 8E 15 - 0 typical time (3 sigma) from receipt of Packet comman.
Chapter 5 ATAPI Interface Page 102 Seagate Travan 40 Product Manual Word(s) Starting Offset (hex) Description of Contents Value (hex) 85 AA Command and feature sets enabled. If words 82 and 83=0000h or FFFFh, then command set notification is not enabled.
ATAPI Interface Chapte r 5 Seagate Travan 40 Product Manual Page 103 Word(s) Starting Offset (hex) Description of Contents Value (hex) 93 Hardware reset result. The contents of bits 12 - 0 of this word shall change only during the execution of a hardware reset.
Chapter 5 ATAPI Interface Page 104 Seagate Travan 40 Product Manual Word(s) Starting Offset (hex) Description of Contents Value (hex) 160 CFA power mode 1 15 Word 160 supported 14 Reserved 13 CFA powe.
ATAPI Interface Chapte r 5 Seagate Travan 40 Product Manual Page 105 IDLE (ATA Command E3) This command i s accepted but performs no function. This command normally allows the Host to place the device in Idle mode using the standby timer. INTRQ is asserted even though the device may not have fully transitioned to Idle mode.
Chapter 5 ATAPI Interface Page 106 Seagate Travan 40 Product Manual IDLE IMMEDIATE (ATA Command E1) This command is accepted but performs no function. This command allows the Host to immediately place the device in Idle mode. INTRQ is asserted even though the device may not have fully transitioned to Idle mode.
ATAPI Interface Chapte r 5 Seagate Travan 40 Product Manual Page 107 NOP (ATA Command 00) This command allows a Host that only performs 16 - bit register accesses, to check device status.
Chapter 5 ATAPI Interface Page 108 Seagate Travan 40 Product Manual PACKET (ATA Command A0) The PACKET command is used to transfer a device command via a command packet.
ATAPI Interface Chapte r 5 Seagate Travan 40 Product Manual Page 109 SET FEATURES (ATA Command EF) This command is used by the Host to establish parameters that affect the execution of certain device features. At power on, or after a hardware reset, the default setting of the functions specified by the subcommands are vendor specific.
Chapter 5 ATAPI Interface Page 110 Seagate Travan 40 Product Manual Host Taskfile Register 7 6 5 4 3 2 1 0 HEX Error rsvd tag type (not supported) MCH ABRT EOM ILI 00 Sector Count N/A N/A Sector Numbe.
ATAPI Interface Chapte r 5 Seagate Travan 40 Product Manual Page 111 SLEEP (ATA Command E6) This command provides the only way for the device to enter Sleep mode. It causes the device to set the BSY bit to one, prepare to en ter Sleep mode, clear the BSY bit to 0 and assert INTRQ.
Chapter 5 ATAPI Interface Page 112 Seagate Travan 40 Product Manual STANDBY (ATA Command E2) This command is accepted but performs no function. This command causes the device to enter the Standby mode. I f the Sector Count register is non - 0, then the Standby timer shall be enabled.
ATAPI Interface Chapte r 5 Seagate Travan 40 Product Manual Page 113 STANDBY IMMEDIATE (ATA Command E0) This command is accepted but performs no function.
Chapter 6 Travan 40 tape format Page 114 Seagate Travan 40 Product Manual Travan 40 tape format Introduction The Seagate Travan 40 drives conform to the Travan 640 and the QIC - 3220 - MC recording format standa rds.
Travan 40 tape format Chapter 6 Seagate Travan 40 Product Manual Page 115 The tracks an d bands are arranged to allow approximately constant distance between all sequential tracks. Band 1 is located nearest the bottom edge of tape. Band 2 is located above band 1.
Chapter 6 Travan 40 tape format Page 116 Seagate Travan 40 Product Manual Frames are numbered indirectly using the 26 most significant bits of the Physical Block Address. Frame operation is controlled by the drive and gener ally invisible to the host.
Travan 40 tape format Chapter 6 Seagate Travan 40 Product Manual Page 117 Blocks Information in the Block Control byte determines the type of block being recorded except for ECC blocks, which are recognized by their block numbers.
Chapter 6 Travan 40 tape format Page 118 Seagate Travan 40 Product Manual Write equalization The drive uses the technique of write equali zation. Write equalization inserts short pulses in the write current to break up the long spacing intervals.
Theory of operations Chapter 7 Seagate Travan 40 Product Manual Page 119 Theory of operations Overview The Seagate Travan 40 drives provide a low - cost, high - performance minicartridge backup system that is ideal for stand - alone users or small network computer systems.
Chapter 7 Theory of operations Page 120 Seagate Travan 40 Product Manual Drive mechanisms This section generally describes the hardw are design features of the Seagate Travan 40 drive. You may want to refer to the block diagrams referenced previously as you read this information.
Theory of operations Chapter 7 Seagate Travan 40 Product Manual Page 121 The 8 - Mbyte DRAM data buffer allows the drive to maintain streaming when the host cannot provide data continuously at the tape - streaming rate.
Chapter 7 Theory of operations Page 122 Seagate Travan 40 Product Manual Drive media (Travan minicartridge s) The drive is designed to use Travan 40 cartridges. These small (approximately 2 inches by 3 inches by 0.4 inch) cartridges house 1650 - Oersted Gamma Ferric Oxide magnetic tape.
Glossary Appendix A Seagate Travan 40 Product Manual Page 123 Glossary This section defines some of the acronyms and technical terms used in this manual. ABRT Status register bit: command has been aborted ANSI American National Standards Institute ATA AT (bus) Attachment ATA - 1 The first defined standard for ATA devices.
Appendix A Glossary Page 124 Seagate Travan 40 Product Manual BSY Status register bit: device is busy BUFFER Intermediate storage space used to hold data bet ween two processes that proceed at different rates.
Glossary Appendix A Seagate Travan 40 Product Manual Page 125 (slave). 0=select drive 0 (master) DIRECTORY A table of contents to the various f iles stored on a computer device (such as a tape or hard disc). DIRECTORY TRACK The track at the centerline of a tape, identified as track 254 by its Track ID frame.
Appendix A Glossary Page 126 Seagate Travan 40 Product Manual FCC (US) Federal Communications Commission FILE MARK An identification block written on tape in response to a command to “Write Filemarks.” FLUX TRANSITION A point on the magnetic tape which exhibits maximum free space flux density normal to the tape surface.
Glossary Appendix A Seagate Travan 40 Product Manual Page 127 MASTER Device address 0 on an IDE bus Mbyte or MEGABYTE A megabyte is one million (1,000,000) bytes. MTBF Mean Time Between Failures MTTR Mean Time to Repair MULTI - WORD DMA An ATA protocol for DMA that transfers more than one word (2 - bytes) during each timing cycle.
Appendix A Glossary Page 128 Seagate Travan 40 Product Manual RAM Stands for Random Access Memory. It is the memory that the computer uses to hold the operating system and programs, from which all the operations are performed. Most RAMs are volatile, meaning that it is erased when the power is removed from the computer.
Glossary Appendix A Seagate Travan 40 Product Manual Page 129 UL Underwriter's Laboratories, Inc. UDMA See ULTRA DMA. ULTRA DMA An ATA proto col for DMA transfers that can achieve data rates up to 33.3 MB/sec. ULTRA SCSI A SCSI protocol for high speed data transfers ULTRA33 See ULTRA DMA.
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