June 2005
Intermediate to advanced
1100 pages
30h 27m
English
book
IBM Tivoli Storage Manager in a Clustered Environment
by Roland Tretau, Dan Edwards, Werner Fischer, Marco Mencarelli, Rosane Goldstein Golubcic Langnor, Maria Jose Rodriguez Canales
Content preview from IBM Tivoli Storage Manager in a Clustered Environment
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8 IBM Tivoli Storage Manager in a Clustered Environment
1.2 Cluster concepts
The basic concepts can be classified as follows:
Cluster topology:
Contains basic cluster components nodes, networks, communication
interfaces, communication devices, and communication adapters.
Cluster resources:
Entities that are being made highly available (for example, file systems, raw
devices, service IP labels, and applications). Resources are grouped together
in resource groups/service groups, which the cluster software keeps highly
available as a single entity.
Resource groups can be available from a single node (active-passive) or, in
the case of concurrent applications, available simultaneously from multiple
nodes (active-active).
Failover:
Represents the ...
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