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Backing up and restoring cluster configurations (cluster administrators only)

Backing up the cluster configuration enables you to restore the configuration of any node or the cluster in the event of a disaster or emergency.

  • What configuration backup files are
    Configuration backup files are archive files (.7z) that contain information for all configurable options that are necessary for the cluster, and the nodes within it, to operate properly.
  • Managing configuration backups
    The configuration backup schedules automatically create configuration backup files for each node in the cluster, and for the cluster itself. You can change some of the settings for these schedules, and you can create configuration backup files manually.
  • Recovering a node configuration
    You recover a node's configuration using a configuration backup file if the node, its root volume, or any of its configuration information is lost or corrupted.
  • Recovering a cluster configuration
    If cluster-wide quorum does not exist, then you recover the cluster configuration by finding a configuration to use for recovery, re-creating the cluster, and then rejoining each node to it.
  • Synchronizing a node with the cluster
    If cluster-wide quorum exists, but one or more nodes are out of sync with the cluster, then you must synchronize the node to restore the replicated database (RDB) on the node and bring it into quorum.