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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Chapter 8. Establishing an HACMP infrastructure on AIX 421
8.3 HACMP concepts
The basic concepts of HACMP 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 (RGs), which HACMP keeps highly available as a single
entity. Resource groups can be available from a single node or, in the case of
concurrent applications, available simultaneously from multiple nodes.
Fallover:
Represents the movement of a resource group from one activ ...
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