Hitachi ULTRASTAR 15K450 HUS154530VLF400 - Manual (Page 323)

Hitachi Ultrastar 15K450 (FC-AL) Hard Disk Drive Specification
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20.0 SCSI Status Byte
Upon the completion of a command a status byte is sent to the initiator. Additional sense information may also be available
depending on the contents of the status byte. The following section describes the possible values for the status byte and sense
data. All Reserved fields are set to zero.
Table 252: SCSI Status Byte. Format of the SCSI STATUS byte.
STATUS BYTE Description
00h GOOD
The command has been successfully completed.
02h CHECK CONDITION
An error, exception, or abnormal condition has been detected. The sense data is set by the drive. The
REQUEST SENSE command should be issued to determine the nature of the condition.
04h CONDITION MET
This status is returned when an unlinked PRE-FETCH command has been successfully completed.
08h BUSY
This condition is returned when disconnect privilege is not granted while the drive is BUSY processing the
other command for the other initiator. The normal initiator recovery action is to issue the command at a later
time or to reissue the command and grant the disconnect privilege.
10h INTERMEDIATE
Not supported.
14h INTERMEDIATE CONDITION MET
Not supported.
18h RESERVATION CONFLICT
This status is returned whenever an SCSI device attempts to access the drive, but it has been reserved by
another initiator.
28h QUEUE FULL
This status indicates that the target's command queue is full. If a tagged command queuing feature is enabled
and there is no room on the command queue, this status is returned when the initiator sends a command. For
this status, sense data are not valid.
Bit
7 6 5 4 3 2 1 0
Reserved = 0 Status Code RSVD