HP XP48 Manuel du propriétaire télécharger pdf (Page 108)

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HP SureStore E Disk Array XP512/XP48: Owner’s Guide

CHA (CHannel

Adapter)

Provides the channel interface control functions and intercache data transfer

functions. It is used to convert the data format between CKD and FBA. The

CHA contains an internal processor and 128 bytes of edit buffer memory.

CHA (Prog.) A channel command control layer that processes channel commands and

controls cache and data transfer operations. It is located in the CHA. CHA

Prog. is recognized by the logical volume number and logical block number.

CHA PCB

(CHannel Adapter

PaCkage Board)

A PCB used to connect to the host processor. There are two types of CHA

PCBs, one for optical channels and the other for metal channels. The CHA

PCB for optical channels is provided with the LCM in its optical link control

unit.

CHP channel processor or channel path

CHIP Client-Host Interface Processor

CHPID channel path identifier

CKD count key data

CL cluster

CM (Cache Memory) See cache.

COLD Status that the battery is off.

CPM Short for Cache Port Master. (Part of the cluster for mounting the Cache Box.

It is possible to mount more than 6 GB of Cache memory.)

CPS Short for Cache Port Slave. (Part of the cluster for mounting the Cache Box.

It is possible to mount more than 6 GB of Cache memory.)

CPU central processing unit

CSA Canadian Standards Association

CT Continuous Track maintenance support application

CU control unit

CVS custom volume size (also called VSC: Volume Size Configurator)

DASD direct access storage device

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HP XP48 Manuel du propriétaire Page 108