HP StorageWorks XP Cluster Extension Software Administrator Guide (T1656-96035, April 2010)

LUSE 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.
See also LD, LDEV
LVM Logical Volume Manager.
MINAP Minimum active paths.
MMC Microsoft Management Console.
MNS Majority node set.
MSCS Microsoft Cluster Service.
MU Mirror unit.
NIC Network interface card. A device that handles communication between a device
and other devices on a network.
path A path is created by associating a port, a target, and a LUN ID with one or more
LDEVs. Also known as a LUN.
PCF Product Configuration File.
port A physical connection that allows data to pass between a host and the disk
array. The number of ports on an XP disk array depends on the number of
supported I/O slots and the number of ports available per I/O adapter. The XP
family of disk arrays supports FC ports as well as other port types. Ports are
named by port group and port letter, such as CL1-A, in which “CL1” is the group,
and “A” is the port letter.
primary site The data center location that owns the cluster group (quorum resource).
PSUS Pair suspended-split.
P-VOL Primary volume.
quorum In MSCS, a cluster resource that has been configured to control the cluster,
maintaining essential cluster data and recovery information. In the event of a
node failure, the quorum acts as a tie-breaker and is transferred to a surviving
node to ensure that data remains consistent within the cluster.
RAID Redundant array of independent disks.
SCSI Small Computer Systems Interface. A standard, intelligent parallel interface for
attaching peripheral devices to computers, based on a device-independent
protocol.
secondary site The data center location with the mirror copy of the quorum disk pair.
SMIT System Manager Information Tool.
SMPL Simplex.
Glossary166