Quantum 10K II - Manual (Page 76)

SCSI Description
Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives 5–9
5.3 Status/Error Reporting
SCSI message-level errors are communicated by messages that are defined
specifically for that purpose. SCSI command-level errors are communicated by a
status that is returned by the drive during the STATUS phase. This phase occurs at
the end of each command, unless the command is terminated by one of the following
events:
• ABORT TASK SET message
• ABORT TASK message
• TARGET RESET message
• CLEAR QUEUE message
• Unexpected disconnect
The status code is contained in bits 1 through 5 of the status byte. Bits 0, 6, and 7
are reserved. Table 5-4 describes the status codes returned by the drive.