To enable the Support for Oracle RAC software to run correctly, you must ensure that sufficient shared memory is available on all the cluster nodes. Perform this task on each cluster node.
See information about configuring kernel parameters on Oracle Solaris in the Oracle Database installation guide for your version of Oracle Database.
You must configure these parameters on the basis of the resources that are available in the cluster. However, the value of each parameter must be sufficient to enable the Support for Oracle RAC software to create a shared memory segment that conforms to its configuration requirements.
For detailed instructions, see Shutting Down and Booting a Single Node in a Cluster in Oracle Solaris Cluster System Administration Guide .
If you are using zone clusters, go to How to Configure Shared Memory for Support for Oracle RAC Software in a Zone Cluster.
If not, go to Installing the Support for Oracle RAC Package.