8.1. Checking Prerequisites for High Availability

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 joined to 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.