19.0 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 215: SCSI Status Byte. Format of the SCSI STATUS byte.

Bit

7 6 5 4

Reserved = 0 Status Code

3 2 1 0

RSVD

STATUS BYTE Description

00h

GOOD

The command has been successfully completed.

02h

04h

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.

08h

10h

14h

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

Not supported.

INTERMEDIATE CONDITION MET

Not supported.

18h

28h

RESERVATION CONFLICT

This status is returned whenever an SCSI device attempts to access the drive, but it has been reserved by another initiator.

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.

HGST Ultrastar C10K600 (SAS) Hard Disk Drive Specification

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HGST Ultrastar C10K600 (SAS) Hard Disk Drive Specification

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