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Using either file system backups or taking configuration snapshots by running the backupConfig command on a regular basis lets you restore a failed node in a ND configuration. If downtime is critical, stick to the file system recovery method. For a small cell, when the focus is centered more around the budget and additional files such as SSL keyring files or property files are no issue, the command-line tools backupConfig and restoreConfig provide another, cheaper but nearly equally effective alternative.