Compaq 4200 Family - Manual (Page 50)

Glossary
The terms in this glossary are either unique to the disk enclosure, or are common
StorageWorks terms.
ambient temperature The air temperature in an area where a system is installed. Also referred
to as rack or enclosure intake air temperature.
bay The physical location of a drive in an enclosure. Each bay is numbered to
define its location. The bay number may or may not be the same as the
SCSI bus ID.
carrier The container in which storage devices are mounted to form CRUs.
Carriers are available in 3.5-inch form-factors for both low-profile
(1.0-in) and half-height (1.6-in) disks.
CRU Customer replaceable unit. An enclosure element that the customer can
replace without using special tools or techniques.
device The targets, initiators, hubs, converters, and bus expanders, and similar
devices interconnected to form a SCSI bus. Connectors, expanders, and
hubs do not use a SCSI bus ID.
See also nodes.
disk enclosure A Compaq enclosure dedicated to supporting disk drives. Such an
enclosure includes the power supplies, fans, I/O modules, and an EMU.