| Component | Description |
| Cluster Administration Process (CLADMIN) | Responsible for the correct operation of all cluster components. Runs automatically at server startup and whenever the cluster membership changes. |
| Cluster Database Directory Manager (CLDBDIR) | Responsible for keeping the Cluster Database Directory (CLDBDIR.NSF) up to date with the most current database information and manages databases with cluster-specific attributes such as databases marked out of service or pending delete. |
| Cluster Manager | Run by the Database Server. Tracks the state of all members in a cluster, keeping a list of which servers in the cluster are currently available and maintains information about the workload on each server. |
| Cluster Replicator (CLREPL) | Responsible for the tight synchronization of data among databases and their replicas in a cluster. |
