Glossary
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ESA
Enterprise Systems Architecture.
ESCON
Enterprise System Connection (the IBM trademark for optical channels).
expanded LUN
A LUN is normally associated with only a single LDEV. The LUSE feature
allows a LUN to be associated with 1 to 36 LDEVs. Essentially, LUSE
makes it possible for applications to access a single large pool of storage.
The LUSE feature is available when the HP StorageWorks LUN
Configuration Manager product is installed.
ExSA
Extended serial adapter.
failover
Disconnecting a failed portion and replacing it with another normal portion
or alternative portion in order to continue functioning.
°
F
Degrees Fahrenheit.
FAL
File access library (part of the Data Exchange software).
FBA
Fixed-block architecture.
FC
Fibre Channel.
FC-AL
Fibre Channel arbitrated loop.
FCC
Federal Communications Commission.
FCP
Fibre Channel Protocol.
FCU
File conversion utility (part of the Data Exchange software).
FDR
Fast dump/restore.
fence level
A level for selecting rejection of a write I/O request from the host according
to the condition of mirroring consistency.
F/M
Format/message.
ft.
Foot or feet.
FWD
Fast wide differential.
fx
The IRIX disk utility.
GB
Gigabytes.