Seagate ST3285N, Product Manual

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3.2 Status byte codes
After the drive terminates each command, the drive sends the status byte
(shown below) to the initiator during the status phase, unless the com-
mand is terminated by one of the following methods:
•
An abort message
•
A bus device reset message
•
A hard reset
•
A catastrophic reset condition
Bytes
Bits
7 6 5 4 3 2 1 0
0
Reserved
Status byte code
RSVD
0 0 0
The
status byte code can be any of the following:
00
H
Good status. The drive has successfully completed execution of
a command.
02
H
Check condition status. The drive detected an error, an excep-
tion, or an abnormal condition. In response, the initiator may issue
a Request Sense command to determine the nature of the condi-
tion.
08
H
Busy status. The drive is busy, and is, therefore, unable to accept
a command from an initiator. The initiator retries the command
later. The drive returns a busy status if the initiator has not sent
the disconnect message and tries to queue a command or if the
initiator rejects the disconnect message and the queue is not
empty.
10
H
Intermediate status. The drive successfully completed a com-
mand that was one of a series of linked commands without issuing
a check condition status or reservation conflict status. (Had the
drive not returned an intermediate status, the series of linked
commands would have been terminated.)
18
H
Reservation conflict status. A SCSI device tried to access the
drive, but was unable to because the drive was already reserved
by another SCSI device.
28
H
Queue full status. The drive received a command, but rejected
it because the queue was full. The drive only uses this status if
tagged command queuing is implemented.
32 ST3655 Family SCSI Drives Product Manual, Rev. A