Glossary - HP XP20000/XP24000 Manual

Glossary

A
API Application program interface.
C
CCI Command control interface. An HP RAID manager.
CHA Channel adapter. A device that provides the interface between the array and the external host
system. Occasionally, this term is used synonymously with the term channel host interface processor
(CHIP).
CLPR Cache logical partition.
CT Consistency.
CTG Consistency group.
CU Control unit.
CU Control unit.
CV Customized volume.
D
DASD Direct-access storage device.
DFW DASD fast write.
DKA Disk adapter.
DKC Disk controller.
E
EXCTG Extended consistency group.
F
FCM FlashCopy Mirroring
FICON(R) Fibre connectivity.
G
GID Group ID.
L
L1, L2 Level 1, level 2.
LBA Logical block address.
LCP Local control port.
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.
LUN Logical unit number.
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.
446 Glossary