HP XP20000/XP24000 Configuration Manual - Page 32

Browse online or download pdf Configuration Manual for Switch HP XP20000/XP24000. HP XP20000/XP24000 34 pages. Hp storageworks xp disk array configuration guide: vmware (a5951-96106, september 2010)
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LUN

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.

LUSE

Logical Unit Size Expansion. 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.

OFC

Open Fibre Control.

OPEN- x

A general term describing any one of the supported OPEN emulation modes (for

example, OPEN-E. There are two types of OPEN-x devices: legacy OPEN-x

devices with a fixed size (such as, OPEN-3, OPEN-8, OPEN-9, OPEN-E), and

OPEN-V, which has a variable size and is a CVS based volume.

Physical address.

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.

port

A physical connection that allows data to pass between a host and a disk array.

R-SIM

Remote service information message.

SIM

Service information message.

SNMP

Simple Network Management Protocol. A widely used network monitoring and

control protocol. Data is passed from SNMP agents, which are hardware and/or

software processes reporting activity in each network device (hub, router, bridge,

and so on) to the workstation console used to oversee the network. The agents

return information contained in a MIB (Management Information Base), which

is a data structure that defines what is obtainable from the device and what can

be controlled (turned off, on, and so on).

SVP

Service processor. A notebook computer built into the disk array. The SVP

provides a direct interface to the disk array and used only by the HP service

representative.

SVS

Storage Virtualization System, an appliance that manages multiple disk array

storage systems.

TID

Target ID.

volume

On the P9000 or XP array, a volume is a uniquely identified virtual storage

device composed of a control unit (CU) component and a logical device (LDEV)

component separated by a colon. For example 00:00 and 01:00 are two

uniquely identified volumes; one is identified as CU = 00 and LDEV = 00, and

the other as CU = 01 and LDEV = 00; they are two unique separate virtual

storage devices within the array.

VSC

Volume size customization. Also known as CVS.

WWN

World Wide Name. A unique identifier assigned to a Fibre Channel device.

Glossary