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Glossary
A
adapter
A printed circuit assembly which transmits user data (I/
Os) between the host system’s internal bus and the
external Fibre Channel link and vice versa. Also called an
I/O adapter, host adapter, or FC adapter.
accelerator
A short-cut keystroke method to perform a menu
operation. Menu options may have accelerator keys listed
to the right of the menu option. Use the listed accelerator
to perform the menu option’s function when no menu is
selected for the window (D).
address
(1) To refer to a product 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 product or computer connected to a network. (4) The
identifier of a location, source, or destination (D).
access
The ability and means necessary to store data in, to
retrieve data from, to transfer data into, to communicate
with, or to make use of any resource of a storage product,
a system, or area such as random access memory (RAM)
or a register.
address name
Synonym for port name.
access control
A list of all products that can access other products across
the network and the permissions associated with that
access. See also persistent binding; zoning.
access time
The amount of time, including seek time, latency, and
controller time, necessary for a storage product to retrieve
information.
active configuration
In FICON management style, the director or 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 fieldreplaceable unit.
active FRU
See active field-replaceable unit.
active port address matrix
In FICON management style, an active port address
matrix is the port address matrix that is currently active or
operational on an attached director or switch.
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.
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address resolution protocol
ARP. The protocol by which a host computer maintains a
cache of address translations, allowing the physical
address of the computer to be derived from the Internet
address (D).
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 product problem.
alias
A nickname representing a world-wide name (WWN).
allowed connection
In FICON management style, in a director or switch, the
attribute that when set, establishes dynamic connectivity
capability. Contrast with blocked connection. See
connectivity attribute. See also dynamic connectivity;
unblocked connection.
allowed port connection
In FICON management style, this attribute establishes
dynamic connectivity capability.
AL_PA
See arbitrated loop physical address.
EFC Manager Software User Manual
53-1000663-03