Hitachi ShadowImage for Mainframe User Guide: HP XP24000 Disk Array, HP XP20000 Disk Array (T5213-96032, May 2011)

Glossary

CTG Consistency group.

CU Control unit.

CVS Custom volume size.

DFW DASD fast write.

DKC Disk controller.

LD, LDEV Logical device. An LDEV is created when a RAID group is carved into pieces according to the

selected host emulation mode (that is, OPEN-3, OPEN-8, OPEN-9). The number of resulting LDEVs

depends on the selected emulation mode. The term LDEV is also known as term volume.

LDKC Logical disk controller.

LVI Logical volume or image (for example, 3390-3R).

M-VOL Main volume.

MCU Main control unit.

NVS Nonvolatile storage.

P-VOL Primary volume.

PB Petabyte; equals 1,000^5 bytes (for physical storage such as hard disk drives) or 1,024 TB or

1,024^5 bytes (for logical storage).

PDEV Physical device.

PPRC Peer-to-peer remote copy.

R-VOL Remote volume.

RCU Remote control unit.

S-VOL Secondary or remote volume. The copy volume that receives the data from the primary volume.

SCP State-change-pending.

SI Hitachi ShadowImage. Also known as HP StorageWorks XP Business Copy.

SIM Service information message.

SIz ShadowImage for Mainframe.

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.

114 Glossary