HP StorageWorks P9000 Manual page 332

P-VOL Primary volume.
parity group A set of hard disk drives that have the same capacity and that are treated as one group. A parity
group contains both user data and parity information, which enables user data to be accessed
if one or more drives in the group is not available.
path A path is created by associating a port, a target, and a LUN ID with one or more LDEVs. Also
known as a LUN.
PAV Parallel access volume.
PCB Printed circuit board.
PDEV Physical device.
port A physical connection that allows data to pass between a host and the disk array. The number
of ports on a disk array depends on the number of supported I/O slots and the number of ports
available per I/O adapter. The P9000 and XP family of disk arrays supports Fibre Channel (FC)
ports as well as other port types. Ports are named by port group and port letter, such as CL1-A.
CL1 is the group; A is the port letter.
PSUE Pair suspended-error.
PSUS Pair suspended-split.
R-VOL Remote volume.
RAID level A RAID level is a configuration of disk drives that employs striping, mirroring, and parity to
improve performance, data availability and reliability, or both.
RAID Manager The CLI configuration and replication tool for the P9000 or XP disk array that system administrators
can use to enter RAID Manager commands from open-system hosts to perform Continuous Access,
Business Copy, Database Validator, and Data Retention operations, as well as provisioning
commands on logical devices.
RCU Remote control unit.
Remote Web A browser-based program installed on the SVP that allows you to configure and manage the disk
Console array.
S-VOL Secondary or remote volume. The copy volume that receives the data from the primary volume.
SCP State-change-pending.
SIM Service information message.
SMPL Simplex.
SSB Sense byte.
SVP Service processor. A computer built into a disk array. The SVP, used only by an HP service
representative, provides a direct interface to the disk array.
synchronous Describes computing models that perform tasks in chronological order without interruption. In
synchronous replication, the source waits for data to be copied at the destination before
acknowledging that it has been written at the source.
T-VOL Target volume.
V-VOL Virtual Volume.
VOL, vol Volume.
volume Volume on disk. An accessible storage area on disk, either physical or virtual.
WWN World Wide Name. A unique identifier assigned to a Fibre Channel device.
332 Glossary