Glossary–2
edge switch 2/24 service manual
Glossary
access time
The amount of time, including seek time, latency, and controller time, necessary for a storage
device to retrieve information.
active configuration
In S/390 mode, the Director or Edge Switch configuration that is determined by the status of
the connectivity attributes.
active field-replaceable unit
Active FRU. A FRU that is currently operating as the active, and not the backup FRU. See also
backup field-replaceable unit
.
active FRU
See
active field-replaceable unit
.
active port address matrix
In S/390 mode, an active port address matrix is the port address matrix that is currently active
or operational on an attached Director or Edge Switch. See also
connectivity capability
.
active zone set
A single zone set that is active in a multiswitch fabric and is created when a specific zone set is
enabled. This zone set is compiled by checking for undefined zones or aliases. See also
zone
;
zone set
.
address
(1) To refer to a device or an item of data by its address (A, I). (2) The location in a computer
where data is stored. (3) In data communication, the unique code assigned to each device or
workstation connected to a network. (4) The identifier of a location, source, or destination (D).
address name
Synonym for
port name
.
agent
Software that processes queries on behalf of an application and returns replies.
alarm
(1) A notification of an abnormal condition within a system that provides an indication of the
location or nature of the abnormality to either a local or remote alarm indicator. (2) A simple
network management protocol (SNMP) message notifying an operator of a network or device
problem.
alert panel
This panel, located below the navigation control panel, displays an alert symbol that indicates
the current state of the switch.
alias
A nickname representing a world-wide name.
