HP StorageWorks XP Cluster Extension Software Installation Guide (T1656-96034, April 2010)

LUN Logical unit number.
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.
MMC Microsoft Management Console.
MNS Majority node set quorum. A quorum-capable resource introduced by Microsoft
with Windows Server 2003. A single quorum resource that allows you to build
clusters with nodes that are geographically separated.
MSCS Microsoft Cluster Service.
MU Mirror unit.
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, where CL1 is the group
and A is the port letter.
primary site The data center location that owns the cluster group (quorum resource).
P-VOL Primary volume.
QFS Quorum Filter Service.
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.
RHCS Red Hat Cluster Suite
rolling disaster A rolling disaster is a catastrophic event or outage that affects the data stored
on remote mirrored disk pairs. In a rolling disaster, data stored on remote mirrored
disk pairs can be entirely lost during a recovery attempt.
RPM Red Hat package manager.
SCSI Small Computer Systems Interface. A standard, intelligent parallel interface for
attaching peripheral devices to computers, based on a device-independent
protocol.
SDK Software Developer Kit.
Glossary50