If you are using Oracle 9i or Oracle 10g R2, the configuration of resource groups depends on the number of file systems in your configuration.
If your configuration contains a small number of file systems, create one resource group for all resources for the Sun StorEdge QFS metadata server.
If your configuration contains a large number of file systems, configure resources for the Sun StorEdge QFSmetadata server in several resource groups as follows:
Distribute resources among the resource groups to ensure optimum load balancing.
Select a different primary node for each resource group to prevent all the resource groups from being online on the same node simultaneously.