Hp 3PAR Operating System Software Manual de usuario descargar pdf (Pagina 56)

LD Logical disk. A collection of chunklets that reside on different physical disks and that are arranged

as rows of RAID sets. When you create a CPG, the system creates and groups logical disks and

assigns those logical disks to the CPG.

LUN Logical Unit Number. A number used to access a virtual volume that has been assigned to a

particular host on a particular port.

matched-set VLUN

template

A rule that allows a particular host connected to a particular port to see a virtual volume as a

specified LUN.

parity A data redundancy technique used by some RAID levels (in particular RAID 5) to provide data

protection on a storage array.

PCM Power Cooling Module. A hardware component that includes the battery, fan, and power supply.

physical disk A dual-ported Fibre Channel disk mounted onto a drive magazine.

port-presents

VLUN template

A VLUN template that allows any host connected to a particular port to see a virtual volume as

a specified LUN.

roles and rights The roles and rights assigned to a user determine which tasks the user can perform with a system.

Service Processor A device inserted into a rack or virtual software that enables you to locally and remotely monitor

and service systems.

TPVV Thinly-Provisioned Virtual Volume. A virtual volume that maps to logical disk space associated

with a Common Provisioning Group (CPG) and is therefore capable of growing on demand.

user data For standard base volumes, the data that is written to the user space.

virtual copy A snapshot created using the copy-on-write technique.

virtual volume A virtual storage unit created by mapping data from one or more logical disks.

VLUN Virtual logical unit number. A VLUN is a virtual volume-LUN pairing expressed as either an active

VLUN or as a VLUN template.

VLUN template A rule that sets up the association between the name of the virtual volume and a LUN-host,

LUN-port, or LUN-host-port combination. The three types of VLUN templates are host-sees,

port-presents, and matched-set.

VSP Virtual Service Processor.

WWN World-Wide Name. A unique 64-bit value used to identify Fibre Channel devices on an arbitrated

loop. The WWN consists of a prefix issued by the IEEE to uniquely identify the company and a

suffix that is issued by the company.

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Hp 3PAR Operating System Software Manual de usuario Pagina 56