Quantum 10K II User Manual

Page 191

SCSI Description

5–124

Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives

PERSISTENT RESERVATION OUT Command (5Fh) (continued)

Table 5–58 PERSISTENT RESERVATION OUT Command — Field Descriptions

Data Field

Description

Service Action

Service actions that require information about persistent reservation and
registrations may require enabling of nonvolatile memory within the logical
unit.
Service action codes available are:
Code

Name

Description

00h

01h

Reserve

Create a persistent reservation using a
reservation key

02h

Release

Release a persistent reservation

03h

Clear

Clear all reservation keys and all persistent
reservations

04h

Pre-empt

Pre-empt persistent reservations from another
initiator

05h

Pre-empt & Clear Pre-empt persistent reservations from another

initiator and clear the task set for the pre-
empted initiator

06 – 1Fh Reserved

Reserved

Refer to Table 5-59 for detailed descriptions of each of the service action
codes.

(continued)