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| Planning a replicated data cluster setup | ||
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The VCS replicated data cluster (RDC) configuration allows you to provide a robust and easy-to manage disaster recovery protection for your applications. For example you can convert a single instance database configured for local high availability in a VCS cluster to a disaster-protected RDC infrastructure using Volume Replicator or a supported third-party replication technology to replicate changed data.
Keep in mind the following best practicies when you configure an RDC:
Make sure the sites and systems at each site are identified correctly for use when defining system zones in an RDC.
Make sure there are dual dedicated LLT links between the replicated nodes.
Since the sites used in the RDC configuration are within metro limits, synchronous replication is typically used. Make sure the replication technology that you plan to use supports synchronous replication mode.
The RDC can also be configured using supported third-party replication technologies.