Adaptec DuraStor 7220SS User Manual page 151

Glossary
disk drive
A physical disk drive on a SCSI bus. In Storage Manager Pro, disk
drives are addressed by their disk ID, which includes the channel
(bus) number, SCSI ID, and LUN. See also channel; disk ID; LUN;
SCSI ID.
disk ID
Unique disk identifier that consists of the channel (bus) number,
SCSI ID (also known as target ID), and LUN (logical unit number).
For example, 1:04:0. See also channel; LUN; SCSI ID.
E
enclosure
A physical housing for disk drives, which can be connected
externally to a computer. An enclosure usually contains one or
more power supplies, fans, and temperature sensors. The term
enclosure also applies to a SAF-TE- or SES-compliant backplane.
See also SAF-TE.
enclosure ID
Enclosures that are controlled by a SAF-TE or SES processor are
identified by an enclosure ID. The enclosure ID consists of the
channel (bus) number, SCSI ID (also known as target ID), and LUN
(Bus:ID:LUN). For example, 1:04:0. See also channel; LUN; SCSI ID.
enclosure management device
See enclosure.
F
fabric
A fibre channel (FC) network that includes switches. It is one of the
basic topologies of a FC network. See fibre channel (FC).
failback
When a storage system is in active-active mode, failback is the act
of returning ownership of controller resources from a surviving
controller to a previously failed (but now active) controller. The
resources include disk arrays, cache data, and host ID information.
See also storage system.
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