Service manual

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Intrepid® 6140 Director Installation and Service Manual
Glossary
for use in enterprise computing environments. Contrast with fabric
switch.
DNS See domain name system.
DNS server For Internet and TCP/IP applications, a DNS server supplies
name-to-address translation by mapping domain names to Internet
addresses.
domain (1) A group of devices (nodes) on a network that form an entity with
resources under common control. For example, a domain can be a
group of servers connected and named to simplify network
administration and security. (2) For TCP/IP applications, the naming
system used in a hierarchical network. (3) A Fibre Channel term
describing the most significant byte inthe N_Port identifier of aFibre
Channel device.
domain ID A number that uniquely identifies a director or switch in a
multiswitch fabric. A unique domain ID is automatically allocated to
each director or switch by the fabric’s principal switch. See also
preferred domain ID.
domain name system The online distributed database system used by the Internet to map
names to IP addresses. DNS servers connected to the Internet
implement a hierarchical name space that allows sites freedom in
assigning machinenamesandaddresses.DNS also supports separate
mappings between mail destinations and IP addresses.
E
E_D_TOV See error-detect time-out value.
EFC Audit Log A log that summarizing actions (audit trail) performed through the
EFC Manager application. Contrast with Audit Log.
EFC Event Log A log recorded at the EFC Manager application that displays a
historyof eventsor errors recordedby the EFC ManagementServices
application. Contrast with Event Log.
EFCM See Enterprise Fabric Connectivity Management.