HP StorageWorks XP Remote Web Console Software - Manual (Page 110)

Glossary
C
CHAP Challenge-Handshake authentication protocol.
CU Control unit.
CV, CVS Custom-sized volume, also called customized volume.
D
DASD Direct access storage device.
DKCMAIN Disk controller main.
F
FD Floppy disk.
H
High Speed mode A mode that can be applied to a channel adapter board. If you apply High Speed mode to a
channel adapter board, port performance will be improved but only one of the ports on the
channel adapter board will be usable.
A channel adapter is in Standard mode or High Speed mode. By default, a channel adapter is
in Standard mode.
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.
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).
M
MIB Management information base. A database of managed objects accessed by network management
protocols. An SNMP MIB is a set of parameters that an SNMP management station can query
or set in the SNMP agent of a network device (for example, a router).
P
parity group A set of hard disk drives that have the same capacity and that are treated as one group. A parity
group contains both user data and parity information, which enables user data to be accessed
if one or more drives in the group is not available.
S
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.
110 Glossary