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Glossary
call-home
Product feature which enables the HAFM server to automatically contact a support center and
report system problems. The support center server accepts calls from the HAFM server, logs
reported events, and can notify one or more support center representatives.
channel
Point-to-point link that transports data from one point to the other.
channel path
A single interface between a central processor and one or more control units along which
signals and data can be sent to perform I/O requests.
channel path identifier
In a channel subsystem, a value assigned to each installed channel path of the system that
uniquely identifies that path to the system.
channel wrap test
A diagnostic procedure that checks host-to-Director connectivity by returning the output of the
host as input. The test is host-initiated, and transmits Fibre Channel frames to a director port.
A director port enabled for channel wrapping echoes the frame back to the host.
class of Fibre Channel service
Defines the level of connection dedication, acknowledgment, and other characteristics of a
connection.
Class F Fibre Channel service
Used by switches to communicate across interswitch links (ISLs) to configure, control, and
coordinate a multi-switch fabric.
Class 2 Fibre Channel service
Provides a connectionless (not dedicated) service with notification of delivery or nondelivery
between two N_Ports. In-order delivery of frames is not guaranteed.
Class 3 Fibre Channel service
Provides a connectionless (not dedicated) service without notification of delivery or
nondelivery between two N_Ports. Also known as datagram.
community profile
Information that specifies which management objects are available to what management
domain or SNMP community name.
concurrent maintenance
Ability to perform maintenance tasks, such as removal or replacement of field-replaceable
units, while a hardware product is operating.
edge switch 2/32 installation guide
Glossary–3
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