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AdministeringIn addition to administering the database server, you can tune performance, replicate data, and archive data.
Enterprise ReplicationThe HCL OneDB™ Enterprise Replication Guide describes the concepts of data replication using HCL® OneDB® Enterprise Replication, including how to design your replication system, as well as administer and manage data replication throughout your enterprise.
Setting up and managing Enterprise ReplicationAfter you design your replication system, you define it and start replication.
Using High-Availability Clusters with Enterprise Replication
High-availability replication systemsYou can combine HCL® OneDB® Enterprise Replication and high-availability clusters to create a high-availability replication system.
High-Availability Clusters in a Hierarchical Tree TopologyWith a hierarchical tree topology, parent servers are good candidates for using high-availability clusters to provide backup servers.

High-Availability Clusters in a Hierarchical Tree Topology

With a hierarchical tree topology, parent servers are good candidates for using high-availability clusters to provide backup servers.

The following example is based on the example in Hierarchical Tree Topology.

If China fails, then Beijing and Shanghai can no longer replicate with other servers in the replication system; Guangzhou and Chengdu can replicate only with each other. However, if China was part of a high-availability cluster, when it failed, the secondary server would replace it and replication would continue, as illustrated in Hierarchical Tree Topology with HDR.

begin figure description - This figure is described in the surrounding text - end figure description — Figure 1: Hierarchical Tree Topology with HDR

In this example, Asia and Guangzhou, which are also parent servers, might also benefit from using a high-availability cluster to ensure high availability.