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Planning and Administering Data Services for Oracle® Solaris Cluster 4.4

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Updated: November 2019
 
 

Adding Resources to Resource Groups

A resource is an instantiation of a resource type. You must add resources to a resource group before the RGM can manage the resources. This section describes the following three resource types.

  • Logical hostname resources

  • Shared-address resources

  • Data service (application) resources

You can use the wizard in the clsetup utility or use the Oracle Solaris Cluster maintenance commands to add the logical-hostname resources to the resource group.

You can also use Oracle Solaris Cluster Manager to create in one operation a logical-hostname resource and a resource group to contain it.

Oracle Solaris Cluster Manager and the clsetup utility enable you to add resources to the resource group interactively. Configuring these resources interactively reduces the possibility for configuration errors that might result from command syntax errors or omissions. The clsetup utility and Oracle Solaris Cluster Manager ensure that all required resources are created and that all required dependencies between resources are set.

Always configure logical hostname resources and shared address resources in failover resource groups. Configure data service resources for failover data services in failover resource groups. Failover resource groups contain both the logical hostname resources and the application resources for the data service. Scalable resource groups contain only the application resources for scalable services. The shared address resources on which the scalable service depends must reside in a separate failover resource group. You must specify dependencies between the scalable application resources and the shared address resources for the data service to scale across cluster nodes.


Note -  The DEPRECATED flag marks the logical hostname or shared address resource as a deprecated address. These addresses are not suitable for outbound requests since they can migrate to a different cluster node due to a failover or switchover.

Note -  Public network management (PNM) objects include IPMP, trunk and datalink multipathing (DLMP) link aggregations, and VNICs that are directly backed by link aggregations.

For more information about resources, see Concepts for Oracle Solaris Cluster 4.4 and Planning for Oracle Solaris Cluster Data Services.