About modifying the VCS configuration for replication
The following resources must be configured or modified for replication:
Table: Cluster resources required for replication
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Cluster resources
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Configuration required |
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Log owner group
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Create a log owner group including the RVGLogowner resources. The RVGLogowner resources are used by:
The RVG log owner service group has an online local firm dependency on the service group containing the RVG.
The VCS uses the following agents to control the folllowing resources:
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RVG group
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Create an RVG group that includes the RVGShared resource replication objects. Define the RVGShared resource and CVMVolDg resource together within a parallel service group. The group is defined as parallel because it may be online at the same time on all cluster nodes.
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CVMVolDg resource
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The CVMVolDg resource does not have volumes specified for the CVMVolume attribute; the volumes are contained in the RVG resource. The CVMVolume attribute for the CVMVolDg resource is empty because all volumes in the RVG are defined by the RVG attribute of the RVGShared resource. The RVG service group has an online local firm dependency on the CVM service group.
For a detailed description of the CVMVolDg agent in this guide:
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RVGSharedPri resource
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Add the RVGSharedPri resource to the existing application database service group. The CVMVolDg resource must be removed from the existing application database service group. |
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application database service group
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The existing application database service group is a parallel group consisting of the application database resource, CVMVolDg resource, and CFSMount resource (if the database resides in a cluster file system). Define the application service group as a global group by specifying the clusters on the primary and secondary sites as values for the ClusterList group attribute. |
For more information on service replication resources:
See the Veritas™ Cluster Server Bundled Agents Reference Guide.
