McDATA 316095-B21 - StorageWorks Edge Switch 2/24 Installation And Service Manual page 549

availability
backbone
backplane
backup
field-replaceable unit
backup FRU
bandwidth
baud
BB_Credit
beaconing
also Event Log; Hardware
Log.
(2) See EFC Audit
The accessibility of a computer system or network resource.
B
b See bit.
B See byte.
Cable on which two or more stations or networks may be attached,
typically used to link computer networks at one site with those at
another. Smaller branch networks are sometimes called ribs.
The backplane provides direct current (DC) power distribution and
connections for all logic cards.
Backup FRU. When an active FRU fails, an identical backup FRU
takes over operation automatically (failover) to maintain director or
switch and Fibre Channel link operation. See also
able unit.
See backup field-replaceable
(1) The amount of data that can be sent over a given circuit. (2) A
measure of how fast a network can move information, usually mea-
sured in Hertz (Hz).
The unit of signaling speed, expressed as the maximum number of
times per second the signal can change the state of the transmission
line or other medium. The units of baud are seconds to the negative 1
power. Note: With Fibre Channel scheme, a signal event represents a
single transmission bit.
See buffer-to-buffer
Use of light-emitting diodes (LEDs) on ports, port cards,
field-replaceable units (FRUs), and directors to aid in the fault-isola-
tion process. When enabled, active beaconing will cause LEDs to flash
Log; Link Incident
Log.
unit.
credit.
Glossary
Log; Threshold Alert
active field-replace-
Glossary g-5