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 flash 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 flash.
port attribute
Indicates the type of fibre-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.
398 Glossary
System Administrator Guide for VSP Gx00 models and VSP Fx00 models
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