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SCSI Commands: 42BREWIND
Page
182
3.30
REWIND
The REWIND command requests that the medium be positioned to the Beginning Of
Tape (BOM). Prior to performing the rewind operation, the buffered data and
filemarks are written to the tape and an EOD marker is recorded. The rewind
operation is done at high speed.
3.30.1
REWIND Command Descriptor Block
Byte
Bits
7 6 5 4 3 2 1 0
0
Operation Code (01h)
1
Ignored LUN
Reserved
IMMED
2
Reserved
3
Reserved
4
Reserved
5
Control
3.30.1.1
REWIND Command Field Descriptions
Field Bytes Bits
Description
Operation
Code
0
The Operation code for REWIND is 01h.
Ignored
Logical
Unit
1 5-7
The LUN field is vestigial from the SCSI-1 standard and is
ignored.
IMMED 1
0
Immediate
bit:
0 = Status is not returned until the rewind operation has
completed.
1 = Status is returned as soon as all buffered data and filemarks
have been written to the medium and the REWIND CDB has
been validated.
Reserved
All reserved bits must be 0.
Control 5
See
SCSI Command Control Byte Format on page 25.
If Check Condition status is returned from REWIND command with the IMMED bit
set to one, then the rewind operation is not performed.
3.30.2
REWIND Completion Status
Code Message Description
00h
Good
Status
•
The drive is ready to perform any appropriate command.
•
The drive remains in any previously set mode.
•
The tape position is BOM (if not an immediate command).
Note: If IMMED is one, then Good Status only indicates that all buffered data
and filemarks have been written to the medium and that the REWIND CDB is
valid.
Summary of Contents for LTO 4
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