Product manual

3.9 Reserve (10) command (56
H
)
The Reserve (10) command is used to reserve a logical unit. The 3rd
Party reservation allows logical units to be reserved for another specified
SCSI device.
Bytes
Bits
7654321 0
0 Operation Code (56
H
)
1 Logical Unit Number
(1)
3rd
Party
(2)
Reserved Extent
(3)
2 Reservation Identification (4)
3 3rd Party Device ID not supported
4 Reserved
5 Reserved
6
Reserved
7–8 Extent List Length (3)
9 Control Byte (5)
Notes:
1
. The Logical Unit Number must be 0.
2.
If bit 4 is 0, byte 2 must also be 0.
If bit 4 is 1, byte 2 identifies the SCSI bus ID of the device
for which the drive is reserved.
3.
Extent not supported
4.
Must be 0 if not supported by the drive.
5.
Normally all zeros. Control Byte can be supported as a special
factory-installed option.
Medalist Pro 2160N/2160WC Product Manual, Rev. A 83