
SCSI Commands
5-130 Quantum DLT 4000 Tape Drive
5.17 RELEASE UNIT COMMAND (17H)
The RELEASE UNIT command releases the drive if it is currently reserved by the
requesting initiator. It is not an error to release the tape drive if it is not
currently reserved by the requesting initiator. If the tape drive is reserved by
another initiator, however, it is not released; the tape drive is only released from
the initiator that issued the RELEASE command.
Bit
Byte
7 6 5 4 3 2 1 0
0 Operation Code (17h)
1 Logical Unit Number 3rd Pty Third Party Device ID Rsvd
2 Reserved
3 Reserved
4 Reserved
5 Unused Reserved Flag Link
Figure 5–66 RELEASE UNIT Command Descriptor Block - Data Format
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