Compaq ProLiant 3000 Compaq ProLiant Cluster HA/F100 and HA/F200 Administrator - Page 40
Resource Dependency Tree, a Windows NT application and a Web server a Windows NT service.
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Designing the Compaq ProLiant Clusters HA/F100 and HA/F200 2-9 Resource Dependency Tree The following steps describe the process of creating a resource dependency tree. Each step is illustrated by adding information to a sample resource dependency tree. The sample is for a hypothetical Web Sales Order business function, which consists of two cluster groups: a database server (a Windows NT application) and a Web server (a Windows NT service). NOTE: For this example, it is assumed that each cluster group can communicate with the other even if they are not executing on the same node, for example, by means of an IP address. With this assumption, one cluster group can fail over to the other node, while the remaining cluster group continues to execute on its primary node. 1. List each business function that requires a clustered application or service. Web Sales Order Business Function Web Sales Order Cluster Group Cluster Group #1 Figure 2-4. Resource dependency tree: step 1 Cluster Group #2