Release Unit (6) Command (17H) - Quantum DLT 8000 Product Manual

5.19 RELEASE UNIT (6) Command (17h)

The RELEASE UNIT (6) command is a 6-byte command that 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 7
Byte
0
1 Logical Unit Number
2
3
4
5 Unused
Figure 5–82 RELEASE UNIT (6) Command Descriptor Block — Data Format
6 5
Operation Code (17h)
3rd Pty
Quantum DLT 8000 Tape System
4 3
Third Party Device ID
Reserved
Reserved
Reserved
Reserved
SCSI Commands
2 1
Rsv'd
Flag
0
Link
5-175