The Sun Cluster software environment provides high availability (HA) support for data services and parallel database access on a cluster of servers. Sun Cluster prevents loss of service in the event of a single-point failure through hardware redundancy, hardware and software failure detection, failover of applications, and automatic restart of data services. Sun Cluster software includes a cluster framework and support for a set of HA agents. Sun Cluster also includes an application programming interface (API) that can be used to create HA applications and to integrate them with the Sun Cluster framework.
All Solaris Resource Manager features for controlling system resources are supported in the Sun Cluster environment. You can install Solaris Resource Manager on any valid Sun Cluster topology, on two-node or greater-than-two-node clusters. See Configuring Solaris Resource Manager in Sun Cluster 3.0 Update Environments for configuration information.
For tips on installing Solaris Resource Manager in Sun Cluster 3.0 Update Environments, see the Solaris Resource Manager 1.3 System Installation Guide.