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HP XP P9500 Storage User Manual

Page 122

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ERC

error reporting communications

ESCON

Enterprise System Connection

EXCTG

See extended consistency group (ECTG).

EXG

external volume group

ext.

external

extended
consistency group
(EXCTG)

A set of Continuous Access Journal Z journals in which data consistency is guaranteed. When
performing copy operations between multiple primary and secondary systems, the journals must
be registered in an EXCTG.

external
application

A software module that is used by a storage system but runs on a separate platform.

external port

A fibre-channel port that is configured to be connected to an external storage system for External
Storage operations.

external volume

A logical volume whose data resides on drives that are physically located outside the HP storage
system.

failback

The process of switching operations from the secondary path or host back to the primary path
or host, after the primary path or host has recovered from failure. See also failover.

failover

The process of switching operations from the primary path or host to a secondary path or host
when the primary path or host fails.

FBA

fixed-block architecture

FC

fibre channel; FlashCopy

FC-AL

fibre-channel arbitrated loop

FCA

fibre-channel adapter

FCIP

fibre-channel internet protocol

FCP

fibre-channel protocol

FCSP

fibre-channel security protocol

FIBARC

Fibre Connection Architecture

FICON

Fibre Connectivity

FIFO

first in, first out

free capacity

The amount of storage space (in bytes) that is available for use by the host system(s).

FSW

fibre switch

FTP

file-transfer protocol

FV

fixed-size volume

FWD

fast-wide differential

GID

group ID

GUI

graphical user interface

H-LUN

host logical unit

HA

high availability

HACMP

High Availability Cluster Multi-Processing

host failover

The process of switching operations from one host to another host when the primary host fails.

host group

A group of hosts of the same operating system platform.

host mode

Operational modes that provide enhanced compatibility with supported host platforms. Used
with fibre-channel ports on RAID storage systems.

host mode option

Additional options for fibre-channel ports on RAID storage systems. Provide enhanced functionality
for host software and middleware.

HRpM

HP Replication Manager

iFCP

internet fibre-channel protocol

IML

initial microcode load; initial microprogram load

122

Glossary