Quantum DLT 8000 Manuel Page 321

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SCSI Commands
Quantum DLT 8000 Tape System 5-177
5.20 RELEASE UNIT (10) Command (57h)
The RELEASE UNIT and the RESERVE UNIT commands are used for contention
resolution in multiple-initiator systems. The RELEASE (10) command is a 10-byte
command used to release a previously reserved logical unit. The drive will not return an
error if the initiator attempts to release a reservation that is not currently valid.
Bit
Byte
7 6 5 4 3 2 1 0
0 Operation Code (57h)
1 Reserved 3rdPty Reserved LongID Extent
2 Reservation Identification
3 Third Party Device ID
4 - 6 Reserved
7 - 8
(MSB)
Parameter List Length
(LSB)
9 Unused Reserved Flag Link
Figure 5–83 RELEASE UNIT (10) Command Descriptor Block — Data Format
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