Scsi Status Byte; Table 167. Scsi Status Byte. Format Of The Scsi Status Byte - Hitachi HUS151473VL3800 - Ultrastar 73.4 GB Hard Drive Specifications

18.0 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 167: SCSI Status Byte. Format of the SCSI STATUS byte.
7 6 5
Reserved = 0 Status Code
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
This status is returned for every command except PRE-FETCH command in a series of linked commands
(except the last command), unless the command is terminated with CHECK CONDITION, RESERVATION
CONFLICT, BUSY status. If INTERMEDIATE or INTERMEDIATE-CONDITION MET status is not
returned, the series of linked commands is terminated and the task is ended.
14h INTERMEDIATE CONDITION MET
This status is returned when a linked PRE-FETCH command has been completed, unless the command is
terminated with CHECK CONDITION, RESERVATION CONFLICT, BUSY status. If INTERMEDIATE or
INTERMEDIATE-CONDITION MET status is not returned, the series of linked commands is terminated
and the task is ended.
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
4 3 2 1
Hitachi Ultrastar 15K147 SCSI Hard Disk Drive Specification
0
RSVD
207