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Olivier Lambert
2015-11-13 18:49:12 +01:00
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rolling_snapshots.md
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# Rolling snapshots
This feature is close to Backups, but it creates a snapshot when planned to do so. It also handles the retention (to remove the oldest snapshot). This feature is very convenient to rollback to a previous state.
**Warning**: snapshots are not backups. All snapshots are on the same Storage than their original disk. If you lose the original VDI (or the SR), you'll **lose all your snapshots**.
[Read more about it](https://xen-orchestra.com/blog/xen-orchestra-4-2/#schedulerollingsnapshots).
> Advice: due to space usage, rolling snapshots should be avoided for large VMs on non-thin provisioned storages.