Managing Snapshots
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Managing Snapshots

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Article Summary

The CTERA Portal retains previous file versions for each user, by using snapshots. Snapshots are read-only copies of files as they were at a particular point-in-time.

A new snapshot is created every 5 minutes.

In addition to the snapshots of previous versions, the CTERA Portal manages a current snapshot, which is writable and includes every change made to data. Only after 5 minutes is this snapshot closed and becomes read-only, as a new current snapshot is created. In case of a failure, recovering any file from the current snapshot is immediate, so the RPO is almost zero (you only lose the last changes made locally that were not synced to the portal before the failure).

The CTERA Portal creates snapshots automatically and retains them according to a configurable snapshot retention policy. So long as a snapshot is retained by CTERA Portal, the relevant version of the user data can be retrieved.

CTERA supports the following types of snapshots:

  • Backups to the CTERA Portal from an agent or CTERA Edge Filer.
  • Snapshots of the CTERA Portal Cloud Drive.

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