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 16. The VERITAS Cluster Server for AIX 705
communication mechanism. VCS requires a minimum of two dedicated
private heartbeat connections, or high-priority network links, for cluster
communication. To enable active takeover of resources, should one of these
heartbeat paths fail, a third dedicated heartbeat connection is required.
Client traffic is sent and received over public networks. This public network
can also be defined as a low-priority network, so should there be a failure of
the dedicated high-priority networks, heartbeats can be sent at a slower rate
over this secondary network.
A further means of supporting heartbeat traffic is via disk, using what is called
a GABdisk. Heartbeats are written to and read from a specific area ...
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