Seagate Medalist 2160N (ST52160N), Product Manual

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3.10 Release (10) command (57
H
)
The Release (10) command is used to release a previously reserved
logical unit. It is not an error for an initiator to attempt to release a
reservation that is not currently valid. In this case, the drive returns a
GOOD status without altering any other reservation.
Bytes
Bits
7 6 5 4 3 2 1 0
0 Operation Code (57
H
)
1
Logical Unit Number
(1)
3rd
Party
(2)
Reserved
Extent
(3)
2 Reservation Identification (4)
3 3rd Party Device ID (2)
4 Reserved
5 Reserved
6
Reserved
7
Reserved
8
Reserved
9 Control Byte (5)
Notes:
1. The Logical Unit Number must be zero.
2. If bit 4 is 0, bits 3, 2, and 1 are 0. If bit 4 is 1,
bits 3, 2 and 1 identify the SCSI bus ID of the device
that reserves the drive.
3. Extent not supported
4. Must be zero if not supported by the drive.
5. Normally all zeros. Control Byte can be supported as a special
factory-installed option.
84 Medalist Pro 2160N/2160WC Product Manual, Rev. A