Hitachi VSP Gx00 series User Manual

parity group
See RAID gr
oup.
PAV
Hitachi Compatible PAV
PCB
printed circuit board
PDEV
physical device
PG
parity group. See RAID group.
physical device
See device.
pool
A set of volumes that are reserved for storing pool volumes (pool-VOL), and used by Thin Image,
Dynamic Provisioning, Dynamic Tiering, or active ash data.
pool volume (pool-VOL)
A logical volume that is reserved for storing snapshot data for Thin Image operations or write data
for Dynamic Provisioning, Dynamic Tiering, or active ash.
port attribute
Indicates the type of bre-channel port: target, RCU target, or initiator.
primary volume (P-VOL)
The volume in a copy pair that contains the original data to be replicated. The data on the P-VOL is
duplicated synchronously or asynchronously on the secondary volume (S-VOL).
The following Hitachi products use the term P-VOL: Thin Image, Copy-on-Write Snapshot,
ShadowImage, TrueCopy, Universal Replicator, Universal Replicator for Mainframe, and High
Availability Manager.
See also secondary volume.
prio
priority mode. Used in Cache Residency Manager.
Q
quick format
The quick format feature in Virtual LVI/Virtual LUN in which the formatting of the internal volumes is
done in the background. This allows system conguration (such as dening a path or creating a
TrueCopy pair) before the formatting is completed. To execute quick formatting, the volumes must
be in blocked status.
quick restore
A reverse resynchronization in which no data is actually copied: the primary and secondary volumes
are swapped.
Glossary
System Administrator Guide for VSP Gx00 models and VSP Fx00 models 356

Hitachi VSP Gx00 series Specifications

General

Brand	Hitachi
Model	VSP Gx00 series
Category	Storage
Language	English