Bit 7 6 5 4 3 2 1 0
Byte
n - 7 (MSB) Last reservation key
n (LSB)
Field descriptions:
Generation:
See SPC-3 r23.
Additional Length:
See SPC-3 r23.
Reservation Key List:
See SPC-3 r23.
PERSISTENT RESERVE IN Parameter Data for Read Reservation
The format for the parameter data provided in response to a PERSISTENT RESERVE IN command with
the Read Reservation service action is shown below:
Bit 7 6 5 4 3 2 1 0
Byte
0 (MSB) Generation
3 (LSB)
4 (MSB) Additional length (n - 7)
7 (LSB)
8 (MSB) Reservation Descriptors
n (see next table) (LSB)
Field descriptions:
Generation:
See SPC-3 r23.
Additional Length:
See SPC-3 r23.
Reservation Descriptors:
See SPC-3 r23.
PERSISTENT RESERVE IN Reservation Descriptor
The format for the reservation descriptor is shown below. There shall be a reservation descriptor for the
persistent reservation, if any, present in the logical unit and a reservation descriptor for each element, if
any, having a persistent reservation.
Bit 7 6 5 4 3 2 1 0
Byte
0 (MSB) Reservation Key
1 (LSB)
2 (MSB) Scope-Specific Address
Chapter 3. Supported SCSI Commands 3-43
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