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HP Workstation xw8000 User Manual

Page 115

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A-5

Glossary

drive LED

Disk indicator LED that illuminates during Read or Write
operations.

dual-level array

Logical disk created from two or more single-level arrays. See also

RAID 10

,

RAID 50

.

E

enclosure

Physical housing for disks, which usually contains one or more
power supplies, fans, and temperature sensors. Enclosures are
normally external to the computer to which they are connected,
although some computers do contain internal enclosures.

enclosure management device

Processor that monitors the fan, power supplies, temperature
sensors, and drive presence within a drive enclosure.

event

Notification or alert from the system, indicating that a change has
occurred.

event log

File used to maintain information about prior controller activities
or errors.

event notification

Means used by the system to communicate information about
events that have occurred.

expand

Add space to an array by adding available space.

UG.book Page 5 Saturday, October 26, 2002 12:08 PM