HP XP Array Manager Software - Manual (Page 51)

Glossary
C
CCHH Cylinder, cylinder, head, head.
CLPR Cache logical partition.
CRM Cache Residency Manager.
CU Control unit.
F
FD Floppy disk.
L
LBA Logical block address.
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.
LU Logical unit.
LUN Logical unit number, logical unit.
LUSE Logical Unit Size Expansion. The LUSE feature is available when the HP StorageWorks LUN
Manager product is installed, and allows a LUN, normally associated with only a single LDEV,
to be associated with 1 to 36 LDEVs. Essentially, LUSE makes it possible for applications to access
a single large pool of storage.
LVI Logical volume or image (for example, 3390-3R).
P
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).
prio Priority mode.
S
SIM Service information message.
SLPR Storage logical partition.
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.
V
V-VOL Virtual volume.
VDEV Virtual device.
VLL Virtual LVI/LUN
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