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Planning and Administering Data Services for Oracle® Solaris Cluster 4.4

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Updated: November 2019
 
 

Distributing Online Resource Groups Among Cluster Nodes

For maximum availability or optimum performance, some combinations of services require a specific distribution of online resource groups among cluster nodes. Distributing online resource groups involves creating affinities between resource groups for the following purposes:

  • Enforcing the required distribution when the resource groups are first brought online

  • Preserving the required distribution after an attempt to fail over or switch over a resource group

This section provides the following examples of how to use resource group affinities to distribute online resource groups among cluster nodes:

  • Enforcing colocation of a resource group with another resource group

  • Specifying a preferred colocation of a resource group with another resource group

  • Balancing the load of a set of resource groups

  • Specifying that a critical service has precedence

  • Delegating the failover or switchover of a resource group

  • Combining affinities between resource groups to specify more complex behavior