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PERSISTENT RESERVE IN (5Eh)

The PERSISTENT RESERVE IN command is used to obtain information about persistent reservation keys

that are active within a library. This command is used in conjunction with the PERSISTENT RESERVE

OUT command.

Bit 7 6 5 4 3 2 1 0

Byte

0 Operation Code (5Eh)

1 LUN Service Action

2 Reserved

3 Reserved

4 Reserved

5 Reserved

6 Reserved

7 (MSB) Allocation Length

8 (LSB)

9 Control

Field descriptions:

Service Action:

The following service actions are supported:

Code Name Description

00h Read Keys Reads all registered Reservation Keys

01h Read Reservation Reads the current persistent reservations

02h - 1Fh Reserved Reserved

Allocation Length:

By means of the Allocation Length field the application client specifies how much space has been

allocated for the returned parameter list.

PERSISTENT RESERVE IN Parameter Data for Read Keys

The format for the parameter data provided in response to a PERSISTENT RESERVE IN command with

the Read Keys 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)

Reservation Key List

8 (MSB) First reservation key

15 (LSB)

...

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Dell PowerVault TL2000 Manuale Utente Pagina 56