Command | Abort Processing |
|
|
PREVENT/ALLOW | The command completes. |
MEDIUM REMOVAL |
|
|
|
READ | The logical position is set to that at the start of the operation. |
|
|
READ BLOCK LIMITS | None |
|
|
READ BUFFER | None |
|
|
READ POSITION | None |
|
|
RECEIVE DIAGNOSTICS | None |
RESULTS |
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|
|
RELEASE UNIT | The command completes. |
|
|
REQUEST SENSE | Sense data is discarded. |
|
|
RESERVE UNIT | The command completes. |
|
|
REWIND | The command completes. |
|
|
SEND DIAGNOSTIC | If data transfer is complete, the command is completed, otherwise no action |
| is taken |
|
|
SPACE | The logical position is set back to that at the start of the operation. |
|
|
TEST UNIT READY | None |
|
|
WRITE | The logical position is set back to that at the start of the operation. |
|
|
WRITE BUFFER | If data transfer is complete, the command is completed, otherwise no action |
| is taken. |
|
|
WRITE FILEMARKS | The logical position is set back to that at the start of the operation |
|
|
VERIFY | The logical position is set back to that at the start of the operation |
|
|
LUN identification (parallel SCSI only)
Identify messages are used to identify the LUN being addressed by the initiator, and to identify which LUN is reselecting the initiator. The old LUN field in the CDB from the
Bus parity or CRC errors
If the drive detects a bus parity error in a message out or command phase, it will still accept the command, which will then return CHECK CONDITION. Additional sense is 4700h (SCSI parity error). Detection of a parity error during the data out phase also causes the drive to return CHECK CONDITION. Additional sense is set to 4701h (data phase CRC error detected) if the bus is in DT mode or 4700h if not.
Interface Implementation
SCSI features 15