IBM Ultrium Internal Tape Drive T200, Справочное руководство

Страница: 109 / 126

Table 110. Abort Condition Handling (continued)
Command Abort Processing
RECEIVE DIAGNOSTIC
RESULTS None.
RELEASE UNIT The command completes.
REPORT DENSITY
SUPPORT None.
REPORT LUNs None.
REQUEST SENSE Sense data is discarded.
RESERVE UNIT The command completes.
REWIND The command completes.
SEND DIAGNOSTIC Vendor unique.
SPACE The logical position is set back to that at the start of the
operation unless the operation is past its ‘point of no return’,
in which case the operation completes.
TEST UNIT READY None.
VERIFY The logical position is set to the next record boundary after
the point where the verify was aborted.
WRITE The data up to first record boundary in the current burst is
written to buffer or tape, depending on Buffered Mode. Any
subsequent data is discarded. If there is no record boundary
in the current burst, the record is truncated to the amount of
data transferred and written to buffer or tape, again
depending on Buffered Mode.
WRITE BUFFER If data transfer is completed, the command is completed;
otherwise, no action is taken.
WRITE FILE MARKS The command completes.
For drives with a SCSI interface, if a command other than INQUIRY, REPORT
LUNs, REQUEST SENSE, or TEST UNIT READY is received after the abort but
before the drive is ready to process the command, the drive attempts to disconnect
and wait until the abort processing has completed before executing the command. If
disconnects are not allowed, Busy status is returned. A TEST UNIT READY
command reports with status immediately.
For drives with a Fibre Channel interface, an INQUIRY command returns the
required data and gives Good status. A REQUEST SENSE command gives no
sense. A TEST UNIT READY command reports with status immediately.
Chapter 5. Attachment Features
95