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Backing up etcd data

Follow these steps to back up etcd data by creating a snapshot. This snapshot can be saved and used at a later time if you need to restore etcd.

Prerequisites

SSH access to a master host.

Procedure

Access a master host as the root user.
Run the etcd-snapshot-backup.sh script and pass in the location to save the etcd snapshot to.
```
$ sudo /usr/local/bin/etcd-snapshot-backup.sh ./assets/backup/snapshot.db
```
In this example, the snapshot is saved to ./assets/backup/snapshot.db on the master host.