HP StorageWorks XP12000 Owner's Manual page 84

C-Track
CA
ca
cache
CDE
CE
CFW
CH
channel adapter
(CHA)
channel host
interface processor
(CHIP)
channel processor
(CHP)
CHPID
84
The HP StorageWorks Continuous Track XP software program, which
detects internal hardware component problems on a disk array and
automatically reports them to the HP STC.
The HP StorageWorks Continuous Access XP software program, which
enables you to create and maintain duplicate copies of the data stored on a
local disk array.
Cache.
Very high speed memory that is used to speed I/O transaction time. All
reads and writes to the XP array family are sent to the cache. The data is
buffered there until the transfer to/from physical disks (with slower data
throughput) is complete.
The benefit of cache memory is that it speeds I/O throughput to the
application. The larger the cache size, the greater amount of data buffering
can occur and the greater throughput to the applications.
XP arrays support a range of cache memory. In the event of power loss,
battery power allows the contents of the cache boards to survive for up to
48 hours.
Common desktop environment.
Customer engineer.
Cache fast write.
Channel.
The channel adapter (CHA) provides the interface between the disk array
and the external host system. Occasionally this term is used synonymously
with the term channel host interface processor (CHIP).
Synonymous with the term channel adapter (CHA).
The processors located on the channel adapter (CHA).
Channel path identifier.
HP StorageWorks XP12000 Disk Array Owner's Guide