HP StorageWorks XP24000/XP20000 for Compatible Parallel Access Volumes Software User Guide: Including Hyper PAV (T5237-96011, May 2011)

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.
LU Logical unit.
LVI Logical volume or image (for example, 3390-3R).
M
MIH Missing interrupt handler.
MVS Multiple virtual storage.
P
PAV Parallel access 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).
PPRC Peer-to-peer remote copy.
PTF Program temporary fix.
R
R-SIM Remote service information message.
rnd Random.
S
S/390 System/390.
S/N Serial number (also abbreviated as s#).
SCI State-change-interrupt.
SCP State-change-pending.
seq Sequential.
SIM Service information message.
SIz ShadowImage for Mainframe.
SMS System Managed Storage.
SSB Sense byte.
SSCH Start subchannel.
SSID Subsystem identifier; storage system identifier.
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.
T
TB Terabyte. Equivalent to 1,000 Gb for data storage and statistics, or 1,024 Gb for memory.
TCz
Hitachi TrueCopy™ for Mainframe.
TCzA TCz Asynchronous.
U
UA Unit address.
UCB Unit control block.
V
VM Virtual Machine.
72 Glossary