Type

The characteristics of the persistent reservation currently held. Persistent reservation types

 

supported by the drive are:

 

3h

Exclusive access

 

6h

Exclusive access, registrants only

 

8h

Exclusive access, all registrants

Parameter List The amount of data (in bytes) that should be sent to the drive from the host in parameter

Length

list data.

 

If the SPEC_I_PT bit in the parameter data is 0, this field is set to 18h.

If SPEC_I_PT is 1, this field specifies the number of bytes of parameter data (minimum is 18h).

Parameter data

 

 

7

6

5

 

4

3

 

2

1

0

 

 

 

 

 

 

 

 

 

 

 

 

 

0

(MSB)

 

 

 

Reservation Key

 

 

 

 

 

 

 

 

 

 

 

 

 

7

 

 

 

 

 

 

(LSB)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

8

(MSB)

 

 

Service Action Reservation Key

 

 

 

 

 

 

 

 

 

 

 

 

15

 

 

 

 

 

(LSB)

 

 

 

 

 

 

 

 

 

 

 

16

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Obsolete (0)

 

 

 

 

19

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

20

 

Reserved (0)

 

 

 

SPEC_1_PT

ALL_TG_PT

Rsvd(0)

APTPL

 

 

 

 

 

 

 

 

 

 

 

 

 

21

 

 

 

 

Reserved (0)

 

 

 

 

22

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Obsolete (0)

 

 

 

 

23

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

24

(MSB)

 

 

Additional Parameter Data

 

 

 

 

 

 

 

 

 

 

 

 

n

 

 

 

 

 

(LSB)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Reservation Key Identifies the I_T nexus that sent the command. The value must match the registered reservation key for the I_T nexus except for:

•The Register and Ignore Existing Key service action, where this field is ignored.

•The Register service action for an unregistered I_T nexus, where this field is 0.

If the Reservation Key does not match with the one registered in the device server for the I_T nexus, the device server returns Reservation Conflict.

Service Action Information needed for the following service actions: Register, Register and Ignore Reservation Key Existing Key, Preempt, and Preempt and Abort.

For the Register and Register and Ignore Existing Key service actions:

0 Unregisters the registered reservation key specified in the Reservation Key field.

nThe new reservation key to replace the existing one as specified in the Reservation Key field for the I_T nexus.

102 Commands