HP StorageWorks XP12000 Panduan Konfigurasi - Halaman 44

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FC-AL

FCP

HBA

LDEV

LUN

LUSE

OFC

OPEN-x

path

port

RAID

Fibre Channel arbitrated loop.

Fibre Channel Protocol.

Host bus adapter.

Hewlett-Packard Company.

Logical device. An LDEV is created when a RAID group is divided into

sections using a selected host emulation mode (for example, OPEN-9 or

OPEN-M). The number of resulting LDEVs depends on the emulation mode.

"LDEV" and "volume" are synonyms.

Logical unit number. A LUN results from mapping a SCSI 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. For example, a LUN associated with two OPEN-

3 LDEVs has a size of 4,693 MB.

Logical Unit Size Expansion, a feature which logically combines LDEVs

so they appear as a larger LDEV. This allows a LUN to be associated with 2

to 36 LDEVs. LUSE allows applications to access data requiring large

amounts of disk space.

Open Fibre Control.

A general term describing any one of the supported OPEN emulation

modes (for example, OPEN-L).

Operating system.

"Path" and "LUN" are synonymous. Paths are created by associating a port,

a target, and a LUN ID with one or more LDEVs.

A connector on a channel adapter card in the disk array. A port passes data

between the disk array and external devices, such as a host server. Ports are

named using a port group and port letter, for example, CL1-A.

Redundant array of independent disks.

HP StorageWorks Disk Array XP Operating System Configuration Guide: OpenVMS