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Clustering Terms

Please see the following list for definitions of clustering terms used in the CA SRM documentation.

Cluster

The virtual entity that represents the two cluster nodes, which are working together as a single resource. The cluster functions as though it were a physical machine, with its own name and IP address, but is in fact only a representation of such an object.

When we refer to "the cluster" in the documentation, this is the object we are referring to.

Cluster Node

A physical computer system which has the Microsoft Cluster Service (MSCS) installed, and which belongs to a cluster.

Group

A set of resources, which may be dependent upon one another, defined and managed via MSCS. No resource can belong to more than one group, and a group can only belong to one node at any given time. For failover purposes, all resources in a group are treated as a single entity and failed over together.

For example, you might define a Web Server group that consists of the following resources:

Clustered Virtual Server

A group which contains a unique network name and an IP address, and therefore is accessible as though it were a physical server.

Note: Do not confuse clustered virtual servers with servers managed by virtualization software, such as VMware or Microsoft Virtual Server.

More Information

Registering Windows Clusters

How Data is Collected from Clusters