IBM TotalStorage SAN140M, Installation And Service Manual

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SAN140M Installation and Service Manual 350
Class 2 Fibre Channel
service
Provides connectionless multiplexed Fibre Channel service between
fabric-attached node ports (N_Ports) with acknowledgement of
frame delivery or nondelivery. Class 2 service is best suited for
mainstream computing applications.
Class 3 Fibre Channel
service
Provides connectionless multiplexed Fibre Channel service between
fabric-attached node ports (N_Ports) without acknowledgement of
frame delivery or nondelivery. Class 3 service is best suited for
storage or video applications.
Class F Fibre Channel
service
Used by directors, switches, or other fabric elements to communicate
across ISLs to configure, control, and coordinate a multiswitch fabric.
cluster A group of Fibre Channel directors and switches configured as a
single entity and managed through the Cluster Manager application.
Cluster Log A log recorded at the Cluster Manager application that displays a
history of cluster-related events, particularly events related to
configuration inconsistencies.
Cluster Manager
application
An application providing the management and graphical user
interface for a user-specified cluster of directors and switches. Each
instance of the Cluster Manager application is opened from the EFC
Manager application. The application runs locally on the
management server and can be downloaded to remote user
workstations. See also
EFC Manager application and Element Manager
application .
CMM card See central memory module card .
concurrent
maintenance
The ability to perform maintenance tasks, such as FRU removal and
replacement or firmware downloads, while a director or switch is
powered on and operational.
configuration data
A collection of data that results from configuring director, switch, and
system operating parameters. Configuration data includes product
identification, port configurations, operating parameters, SNMP
configuration, and zoning configuration. A backup file is required to
restore configuration data if the CTP card in a nonredundant director
is removed and replaced.
connectionless A nondedicated link between fabric-attached nodes that allows a
director or switch to forward Class 2 or Class 3 Fibre Channel frames
as resources (ports) allow.