In the following figure, individual instances of Microsoft Exchange Server 2003 share HP EVA virtual disk array group shared resources:

Figure 20 Cluster Element Topology Representation

Clustering in Capacity Manager

In Capacity Manager, it is possible to see the whole capacity utilization by the cluster. Clusters are represented as managed elements, and the capacity calculator intelligently avoids double counting of the capacity from individual nodes at the cluster level.

For detailed information about Capacity Manager, see ”Finding an Element’s Storage Capacity” on page 669.

You can drill down to various levels to see the following details of cluster capacity utilization:

346 Host and Application Clustering