HP StorageWorks XP10000 - Disk Array Manual page 54

mirroring The consistency (usability) of data in a volume (for example, S-VOL).
consistency
mm Millimeters.
MR
Magnetoresistive.
ms, msec
Milliseconds.
mutual hot Two servers that are poised to cover for each other if necessary.
standby system
NAS Network attached storage.
node Logically speaking, an environment where instances can be executed. Physically,
a processor, which is an element of a cluster system.
NVS Nonvolatile storage.
OFC Open Fibre Control.
OLM
Optical link module.
OS
Operating system.
PA Physical address.
parity group A parity group is a disk configuration in which multiple disks work together to
provide redundancy. Synonymous with "array group."
partition Dividing a specific physical disk into two or more areas as if there are two or
more physical disks.
path Paths are created by associating a port, a target, and a LUN ID with one or
more LDEVs.
PCI Power control interface or peripheral component interconnect.
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 Fibre Channel (FC) ports as well as other port
types. Ports are named by port group and port letter, such as CL1-A. CL1 is the
group, and A is the port letter.
P-P Point-to-point.
primary rack The XP10000 rack that contains the basic disk array components, including the
controller and up to two disk chassis (up to 120 drives).
PS Power supply.
RS Russellstoll®, a brand of electrical plugs and receptacles manufactured by Thomas
& Betts Corporation.
RAID Redundant array of independent disks.
RAID group See "array group."
54 Glossary