Avago Technologies AcceleRAID 170LP - Manual (Page 60)

G-2 AcceleRAID 170LP Installation Guide
ASIC
Application-Specific Integrated Circuit, a chip created for a specific
application.
Auto Swap
The exchange of a pre-installed replacement unit in a disk system for a
defective one; the disk system performs the substitution without human
intervention while continuing to carry out its normal functions (compare
with Hot Swap).
Automatic Rebuild
Mylex controllers provide automatic rebuild capabilities in the event of a
physical disk drive failure. The controller performs a rebuild operation
automatically when a disk drive fails and both of the following conditions
are true:
A standby or hot spare disk drive of identical or larger size is found attached
to the same controller;
All system drives that are dependent on the failed disk drive are configured
as a redundant array: RAID 1, RAID 3, RAID 5, or RAID 0+1.
During the automatic rebuild process, system activity continues; however,
system performance may degrade slightly.
BBU
Battery Backup Unit, provides a battery backup for data currently stored in
the on-board cache memory during intermittent power loss to the controller.
In the event of a power failure, the BBU can hold data in the cache for a
certain amount of time. Once power is restored the data can be saved to a
disk.
Benchmarks
A set of conditions or criteria against which a product or system is measured.
Computer trade magazine laboratories frequently test and compare several
new computers or computer devices against the same set of application
programs, user interactions, and contextual situations. The total context