McDATA Enterprise Operating System, User Manual

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Glossary g-13
Glossary
path
In a network, any route between any two ports.
persistent binding A form of server-level access control that uses configuration informa-
tion to bind a server to a specific Fibre Channel storage volume (or
logical device), using a unit number.
See also access control .
port Receptacle on a device to which a cable leading to another device can
be attached. Ports provide Fibre Channel connections
(D) .
port address name
A user-defined symbolic name of 24 characters or less that identifies a
particular port address.
port card Field-replaceable hardware component that provides the port
connections for fiber cables and performs specific device-dependent
logic functions.
port card map Map showing port numbers and port card slot numbers inside a
hardware cabinet.
port name Name that the user assigns to a particular port through the Element
Manager application.
preferred domain ID Configured value that a switch will request from the Principal Switch.
If the preferred value is already in use, the Principal Switch will
assign a different value.
principal switch In a multiswitch fabric, the switch that allocates domain IDs to itself
and to all other switches in the fabric. There is always one principal
switch in a fabric. If a switch is not connected to any other switches, it
acts as its own principal switch.
R
R_A_TOV See resource allocation time-out value .
redundancy Performance characteristic of a system or product whose integral
components are backed up by identical components to which
operations will automatically failover in the event of a component
failure. Redundancy is a vital characteristic of virtually all
high-availability (24 hours/7 days per week) computer systems and
networks.