Quantum 10K II - Manual (Page 77)

SCSI Description
5–10 Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives
Table 5–4 Status Codes
Status Code Definition Meaning
00h GOOD The drive successfully completed the command.
02h CHECK CONDITION An Auto Contingent Allegiance (ACA) condition
occurred.
08h BUSY The drive cannot service the command at the
moment, and its Command Descriptor Block has been
discarded. The initiator can retry the command at a
later time. This status is returned when:
• A non-tagged command is received and the logical
unit's command queue is full (all internal command
buffers are in use).
• A disconnect privilege was not granted in the
IDENTIFY message of a queue-tagged I/O process
(Parallel SCSI).
• A disconnect privilege was not granted in the
IDENTIFY message of a non-tagged I/O process and
a command from another initiator is currently active
(Parallel SCSI).
• A command is received while aan auto-contingent
allegiance condition exists for another initiator.
10h INTERMEDIATE This status is returned for every command (except the
last) in a series of linked commands that was
successfully completed. However, if the command is
terminated with other that GOOD status (such as
CHECK CONDITION, RESERVATION CONFLICT, OR
BUSY), the INTERMEDIATE status is not returned and
the series of linked commands and the task is ended.
18h RESERVATION CONFLICT Another initiator has reserved the drive. (This status is
never returned for INQUIRY or REQUEST SENSE
commands.)
28h TASK SET FULL The drive cannot service the command at the
moment, and its Command Descriptor Block has been
discarded. (Returned for a tagged command when all
of the drive's internal command buffers are in use, or
when a host sends a tagged command while an Auto
Contingent Allegiance condition is pending for that
initiator)