Manage Clusters

Create clusters, manage load profiles, add instances to a cluster, display properties of clusters, and manage routes.

To manage clusters, you must have connect to permissions granted in the master database. connect to permissions can be granted to a role, user, or group.  

The syntax is:
grant connect to someone   
where someone is a role, a user, or a group.

In the cluster environment, each machine is referred to as a node, and each server as an instance. Connected instances form a cluster, working together to manage a single set of databases on the shared disks. In each case, the instances present as a single system, with all data accessible from any instance. The Cluster Edition assigns server process IDs (spids) that are unique to the cluster, so the spid identifies a single process across all instances in the cluster, with all data accessible from any instance.

You can configure a cluster to run multiple servers as a shared-disk or private cluster. You can also create a shared cluster in Veritas Cluster Server (VCS) mode.

You cannot mix different operating systems or hardware architectures. However, each node can contain a different number of processors, cores, and RAM. This difference in configuration can be accounted for within the cluster configuration file (and subsequently within the Workload Manager) once the Cluster Edition is installed and your cluster is built.

See the Installation Guide Cluster Edition for your platform for information about installing the software, platform support, and system requirements.

See the Clusters Users Guide for detailed information about the features available in the Cluster Edition.