HP XP Data Shredder Software - Manual (Page 98)

Glossary
C
cache extents areas used for Cache Residency Manager
Cache Residency
Manager dynamic cache residency
CU Control unit.
CV customized volume
D
DKC Disk controller.
F
FV fixed-size volume
J
JNL journal
L
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
LUN Manager Remote Web Console software option
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 image (also called device manipulation)
O
OPEN- x A general term describing any one of the supported OPEN emulation modes (for example,
OPEN-E. There are two types of OPEN-x devices: legacy OPEN-x devices with a fixed size (such
as, OPEN-3, OPEN-8, OPEN-9, OPEN-E), and OPEN-V, which has a variable size and is a CVS
based volume.
P
parity group A set of hard disk drives that have the same capacity and are treated as one group. A parity
group contains both user data and parity information, which allows the user data to be accessed
in the event that one or more of the drives within the group are not available.
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).
R
R-SIM Remote service information message.
98 Glossary