Glossary
drive LED
Disk indicator LED that illuminates during Read or Write operations.
dual-level array
Logical disk created from two or more
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.
