Adaptec 133U2 - AAA RAID Controller User Manual page 163

Glossary
controller, storage
In contrast to I/O Adapters, Storage Controllers provide
additional functions such as RAID support and caching. The
term is often used to refer to an Adapter with an on-board
microprocessor which can process I/O commands.
In practice, used interchangeably with Adapter.
D
dedicated spare
A spare disk which automatically replaces failed array
members only for the array it is dedicated to.
device slot
A receptacle in an enclosure for inserting and removing a SCSI
device.
discovery
The process by which information about a system or subsystem
is obtained.
disk
A physical disk drive on a SCSI bus.
disk ID
Consists of the bus number, SCSI ID, and LUN, for example,
1:04:0. See also bus; LUN; SCSI ID.
DMI
Stands for Desktop Management Interface. A standards-based
approach to managing PC systems.
E
enclosure
A physical housing for disks, which can be connected
internally or externally to a computer. An enclosure usually
contains one or more power supplies, fans, and temperature
sensors.
enclosure ID
Consists of the bus number, SCSI ID, and LUN, for example,
1:04:0. See also bus; LUN; SCSI ID.
enclosure management device
See enclosure.
Glossary-3