Quantum DLT 4000 Manuel télécharger pdf (Page 85)

SCSI Description

Quantum DLT 4000 Tape Drive 3-23

Table 3–6 Status Bytes

Status Bytes Returned from Tape Drive Definition

GOOD (00h) This status indicates that the drive successfully completed

the command.

CHECK CONDITION (02h) A contingent allegiance condition occurred. The REQUEST

SENSE command should be sent following this status to

determine the nature of the event.

BUSY (08h) Target is busy. This status is returned whenever the device

is unable to accept a command from an otherwise

acceptable initiator. The initiator should reissue the

command at a later time.

INTERMEDIATE GOOD (10h) This status is returned instead of GOOD for commands

issued with the LINK bit set = 1. Following the return of

this status, the drive proceeds to the COMMAND phase for

the transfer of the next linked command.

RESERVATION CONFLICT (18h) This status is returned by the drive whenever a SCSI device

attempts to access the drive when it has been reserved for

another initiator with a RESERVE UNIT command.

COMMAND TERMINATED (22h) This status is returned for a command that was terminated

via a TERMINATE I/O PROCESS message. This status also

indicates that a contingent allegiance condition has

occurred.

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Quantum DLT 4000 Manuel Page 85