An RSCT peer domain

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An RSCT peer domain is a cluster of nodes configured for high availability.

The peer domain could consist of all nodes in your cluster, or could be a subset of nodes in your overall cluster solution (which could also consist of nodes configured into a management domain). Within a management domain, however, the management server cannot belong to the same peer domain as any of the managed nodes.

An RSCT peer domain uses:
  • RSCT cluster security services for authentication.
  • The Topology Services subsystem for node/network failure detection. Generally, the peer domain's use of this subsystem is transparent to you.
  • The Group Services subsystem for cross node/process coordination. Generally, the peer domain's use of this subsystem is transparent to you.
  • The resource monitoring and control subsystem for coordination between the various RSCT subsystems. Generally, the peer domain's use of this subsystem is transparent to you. However, you can use RMC to monitor the peer domain.