IBM IC35L036UWDY10 Hard Drive Specifications - Page 191

SCSI status byte, If INTERMEDIATE or INTERMEDIATE CONDITION MET status is

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9.0 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 (R) are set to zero. Bit 7 6 5 4 3 2 1 Reserved = 0 Status Code Figure 176. SCSI Status Byte. Format of the SCSI STATUS byte. 0 RSVD STATUS BYTE 00h 02h 04h 08h 10h 14h 18h Description GOOD The command has been successfully completed. 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. CONDITION MET This status is returned when an unlinked PRE-FETCH command has been successfully completed. 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. 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, or BUSY status. If INTERMEDIATE or INTERMEDIATE CONDITION MET status is not returned, the series of linked commands is terminated and the task is ended. 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, or BUSY status. If INTERMEDIATE or INTERMEDIATE CONDITION MET status is not returned, the series of linked commands is terminated and the task is ended. RESERVATION CONFLICT This status is returned whenever a SCSI device attempts to access the drive and it has been reserved by another initiator. See Section 8.29, "Reserve (16)" on page 155. Ultrastar 146Z10 hard disk drive specifications 175

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9.0 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 (R) are set to zero.
RSVD
Status Code
Reserved = 0
0
1
2
3
4
5
6
7
Bit
Figure 176. SCSI Status Byte. Format of the SCSI STATUS byte.
This status is returned whenever a SCSI device attempts to access the drive and
it has been reserved by another initiator.
See Section 8.29, "Reserve (16)" on
page 155.
RESERVATION CONFLICT
18h
This status is returned when a linked PRE-FETCH command has been
completed, unless the command is terminated with CHECK CONDITION,
RESERVATION CONFLICT, or BUSY status.
If INTERMEDIATE or
INTERMEDIATE CONDITION MET status is not returned, the series of linked
commands is terminated and the task is ended.
INTERMEDIATE CONDITION MET
14h
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, or BUSY
status.
If INTERMEDIATE or INTERMEDIATE CONDITION MET status is not
returned, the series of linked commands is terminated and the task is ended.
INTERMEDIATE
10h
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.
BUSY
08h
This status is returned when an unlinked PRE-FETCH command has been
successfully completed.
CONDITION MET
04h
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 deter-
mine the nature of the condition.
CHECK CONDITION
02h
The command has been successfully completed.
GOOD
00h
Description
STATUS BYTE
Ultrastar 146Z10 hard disk drive specifications
175