HP StorageWorks XP12000 - Disk Array Owner's Manual page 76

GB
GLM
HA
HBA
host mode
hot standby
HP
I/O
LAN
LD, LDEV
LED
local disk
LU
LUN
LUSE
m
MB
MCU
76
Glossary
Gigabytes.
Gigabyte link module.
High availability.
Host bus adapter. A built-in function or a card installed in a
PC or other host computer to enable connection of the host to
the SAN.
Each port can be configured for a particular host type. These
modes are represented as two-digit hexadecimal numbers. For
example, host mode 08 represents an HP-UX host.
Using two or more servers as a standby in case of a primary
server failure.
Hewlett-Packard Development Company.
Input/output (applies to an operation or device).
Local area network.
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 often used synonymously with the term volume.
Light emitting diode.
A disk in the host.
Logical unit.
Logical unit number. A LUN results from mapping a SCSI
logical unit number, port ID, and LDEV ID to a RAID group.
The size of the LUN is determined by the emulation mode of
the LDEV, and the number of LDEVs associated with the LUN.
For example, a LUN associated with two OPEN-3 LDEVs has a
size of 4,693 MB.
Logical unit size expansion. See also Expanded LUN.
Meters.
Megabytes.
Main control unit.