Checking Prerequisites

For the High Availability feature to work, the following prerequisites must be met:

• A Virtuozzo Storage cluster is set up in your network. High Availability is supported only for nodes that participate in Virtuozzo Storage clusters.
• A cluster has 5 or more chunk servers.
• The default and minimum replication parameters in the cluster are set to at least 3 and 2 replicas, respectively.

Note: You may also consider updating your cluster of Hardware Nodes as described in Updating Hardware Nodes in a Virtuozzo Storage Cluster.