SCSI Description
Quantum DLT 4000 Tape Drive
3-3
Table 3–1 Implemented ANSI SCSI-2 Commands (continued)
Command
Code
Class
Description
MODE SELECT (6)
15h
Optional
Provides a means for the initiator to
specify device parameters.
MODE SENSE (6)
1Ah
Optional
Provides a means for a drive to report
parameters to the initiator.
PREVENT ALLOW
MEDIUM REMOVAL
1Eh
Optional
Requests that the target enable or
disable the removal of the medium in
the logical unit. Medium cannot be
removed if any initiator has medium
removal prevented.
READ
08h
Mandatory
Requests the drive to transfer data to the
initiator.
READ BLOCK LIMITS
05h
Mandatory
Requests that the logical unit’s block
length limits capability be returned
READ BUFFER
3Ch
Optional
Used in conjunction with the WRITE
BUFFER command as a diagnostic
function for testing target memory and
the integrity of the SCSI bus. This
command does not alter the medium.
READ POSITION
34 h
Optional
Reports the current position of the
logical unit and any data blocks in the
buffer.
RECEIVE DIAG
RESULTS
1Ch
Optional
Requests analysis data to be sent to the
initiator after completion of a SEND
DIAGNOSTIC Command.
RELEASE UNIT
17h
Mandatory
Used to release a previously reserved
logical unit.
REQUEST SENSE
03h
Mandatory
Requests the drive to transfer sense data
to the initiator.
RESERVE UNIT
16h
Mandatory
Used to reserve a logical unit.
SEND DIAGNOSTIC
1Dh
Mandatory
Requests the drive to perform diagnostic
operations on itself.
Summary of Contents for DLTtape DLT 4000
Page 1: ...DLT 4000 Tape Drive Product Manual November 10 2003 81 60043 04 ...
Page 5: ...USER MANUAL STATEMENTS FOR CLASS B EQUIPMENT continued ...
Page 6: ......
Page 24: ...About This Manual Quantum DLT 4000 Tape Drive xxiv ...
Page 62: ...Hardware Implementation 2 28 Quantum DLT 4000 Tape Drive ...
Page 100: ...Messages 4 12 Quantum DLT 4000 Tape Drive ...
Page 264: ...SCSI Commands 5 164 Quantum DLT 4000 Tape Drive ...
Page 274: ...Appendix B EEPROM Resident Bugcheck and Event Logs B 6 Quantum DLT 4000 Tape System ...
Page 280: ...Appendix C Updating the Firmware C 6 Quantum DLT 4000 Tape Drive ...
Page 298: ...Index Index 6 Quantum DLT4000 Tape Drive ...
Page 299: ......