Hp XP P9500 Storage Bedienungsanleitung PDF herunterladen (Seite 48)

Glossary

CU Control Unit. Used to organize the storage space attached to the disk controller ( DKC). You can

group similarly configured logical devices (LDEVs) with unique control unit images (CUs). CUs

are numbered sequentially. The disk array supports a certain number of CUs, depending on the

disk array model. Each CU can manage multiple LDEVs; therefore, both the CU number and the

LDEV number are required to identify an LDEV.

DFSMS Data Facility Storage Management Subsystem.

HCD Hardware Configuration Definition.

IOCDS I/O control data set. A mainframe definition of information related to I/O and peripheral devices.

IPS Installation performance specification.

LDKC Logical disk controller.

LUN Logical unit number. A LUN results from mapping a logical unit number, port ID, and LDEV ID to

a RAID group. The size of the LUN is determined by the emulation mode of the LDEV and the

number of LDEVs associated with the LUN.

MVS Multiple virtual storage.

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.

Remote Web

Console

A browser-based program installed on the SVP that allows you to configure and manage 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.

volume Volume on disk. An accessible storage area on disk, either physical or virtual.

WLM Workload manager.

48 Glossary

1 2 ... 43 44 45 46 47 48 49 50

Keine Kommentare

Hp XP P9500 Storage Bedienungsanleitung Seite 48