HP P2000 G3 Cli Reference Guide

320 Alphabetical list of commands
show volume-reservations
Description Shows persistent reservations for all or specified volumes. The persistent group reservations (PGR)
mechanism enables application clients on multiple hosts to control access to a storage volume, and
limits access by other hosts.
Each host must be registered with the storage system in order to establish a persistent reservation for
a volume, thereby becoming a reservation holder.
If the system gets into an abnormal state and you need to remove all registrations and reservations
for specified volumes to return them to a “clean” state, you can use the release volume command.
This command must be used with care, as described in its help.
For more information about persistent reservations, see the SPC-3 specification at
http://www.t10.org
.
Syntax
show volume-reservations all|volumes
Parameters all|volumes
Specifies all volumes, or the names or serial numbers of specific volumes. For volume syntax,
Command syntax on page 22.
Output Name
Name of the volume.
Serial Number
Volume serial number.
Volume Reserved
• Free: The volume is not reserved.
• Reserved: The volume has been reserved by a host.
Host ID
Host WWPN or iSCSI node name.
Port
Controller ID and port number.
Reservation Type
• Write Exclusive: Write commands are only allowed for a single reservation holder.
• Exclusive Access: Certain access (read, write) commands are only allowed for a single
reservation holder.
• Write Exclusive - Registrants Only: Write commands are only allowed for registered
hosts. There is a single reservation holder.
• Exclusive Access - Registrants Only: Certain access (read, write) commands are
only allowed for registered hosts. There is a single reservation holder.
• Write Exclusive - All Registrants: Write commands are only allowed for registered
hosts. There is a single reservation holder.
• Exclusive Access - All Registrants: Certain access (read, write) commands are only
allowed for registered hosts. There is a single reservation holder.
• Undefined: The volume has no persistent reservations.

HP P2000 G3 Specifications

General

Model	P2000 G3
Category	Storage
Drive Support	SAS, SATA
Host Interface	iSCSI, Fibre Channel, SAS
Form Factor	2U
RAID Levels	0, 1, 5, 6, 10
Cache	2 GB
Drive Bays	12 (SFF), 24 (SFF), 12 (LFF)
Cache Memory	2GB per controller
Operating Temperature	10°C to 35°C
Power Supply	Redundant
Expansion Options	Disk Enclosures