HP Hitachi Dynamic Link Manager Software - Manual (Page 497)

C. Glossary
475
C. Glossary
This glossary explains the terms used in this manual.
A
automatic failback
A function for checking the status of paths at regular intervals, and automatically
placing the status of a path recovered from an error into the Online status.
If a path with an Offline(E) or Online(E) status recovers from an error, an automatic
failback will place the path Online.
Automatic failbacks check the status of paths that were placed in the Offline(E) or
Online(E) status because of an error, but do not check the status of paths that were
placed in the Offline(C) status by executing an
offline
operation. For details on
offline
operations, see 6.4 offline (Places Paths Offline).
AutoPATH_ID
An ID which HDLM assigns to a path when the system is started or when path
configuration is performed. Every path has a unique AutoPATH_ID.
(See also: path)
B
boot disk environment
An environment in which the startup disk is in a storage system instead of in the host.
C
CHA (Channel Adapter)
An adapter for controlling the channels of a storage system.
CLPR(Cache Logical Partition)
A function supported by the Hitachi USP, Universal Storage Platform V/VM, Virtual
Storage Platform, and Hitachi AMS2000/AMS/WMS/SMS series for logically
splitting up a cache. This function can splits up a cache into parity groups in the storage
system, so that other parity groups do not affect the cache performance.
cluster
A system of connecting multiple hosts with the same OS or platform (essentially, an
environment in which the same application can run) and treating them as one system.