HP Surestore 160fx Optical Drive and Library SCSI-2 Command Reference - Page 30
No Operation 08H, Message Parity Error 09H, Linked Command Complete 0AH, Bus Device Reset 0CH
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SCSI Command Overview SCSI Command Overview Drive Control Commands No Operation 08H This message is ignored by the target. Message Parity Error 09H When the target receives this message, it retries the operation by resending the original message once. If the message cannot be sent successfully, the target immediately goes to the Bus Free Phase and aborts the current SCSI command. No further reconnection is attempted and no status or COMMAND COMPLETE message is returned for the command. The target sets the Sense Key/Additional Sense Code to Hardware Error/SCSI Interface Parity Error. Linked Command Complete 0AH This message is sent from the drive to an initiator to indicate the execution of a linked command has been completed and that the status has been sent. Linked Command Complete (with flag) 0BH This message is sent from the drive to an initiator to indicate the execution of a linked command (with flag bit set to 1) has been completed and that the status has been sent. Bus Device Reset 0CH This message is sent from an initiator to reset the target. Abort Tag 0DH The drive goes to the BUS FREE phase following successful receipt of the ABORT TAG message and clears the current I/O process. If the drive already started execution of the I/O process, the execution will be halted. The medium contents may have been modified before the execution was halted. Chapter 1 1-11