HP P6000 Cluster Extension Software Installation Guide (5697-0987, June 2011)

failover An operation that reverses replication direction so that the destination becomes
the source and the source becomes the destination. Failovers can be planned or
unplanned and can occur between DR groups, managed sets, fabrics or paths,
and array controllers.
FC Fibre Channel. A network technology primarily used for storage networks.
GUI Graphical User Interface.
HBA Host bus adapter.
heartbeat A periodic synchronization signal issued by cluster software or hardware to
indicate that a node is an active member of the cluster.
host A computer that runs user applications and uses (or potentially uses) one or more
virtual disks that are created and presented by the array controller.
ITRC HP IT Resource Center.
JRE Java Runtime Environment.
LU Logical unit.
LUN Logical unit number. A LUN results from mapping a 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.
LVM Logical Volume Manager.
management
server
A server on which HP management software is installed.
MNS Majority node set.
MPIO Multipath I/O.
MSCS Microsoft Cluster Service.
NAS Network attached storage.
port A physical connection that allows data to pass between a host and the storage
system. The number of ports on a P6000/EVA storage system depends on the
number of supported I/O slots and the number of ports available per I/O adapter.
The P6000/EVA family of storage systems 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 port group, and A is the port letter.
primary site The data center location that owns the cluster group (quorum resource).
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 tiebreaker and is transferred to a surviving
node to ensure that data remains consistent within the cluster.
RHCS Red Hat Cluster Suite
RPM Red Hat package manager.
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