What is the Retention Policy for the Continuous Data Protection feature?

The Continuous Data Protection (CDP) feature is enabled by default, and is ’triggered’ when the file system is updated, resulting in a snapshot. If no changes are made to the file system, then a recovery point (snapshot) will not be shown.

If organizations have applications (e.g., backup/recovery) that are managing how long information is kept, the Continuous Data Protection feature can be turned on or off at the share level through OneSystem.

Snapshots are taken every 90 seconds for the first hour and then retained for a period of time. Over time, different recovery points will be available, and the default retention period is for 1 year. Below is a table of the default snapshot frequency and retention period.

NOTE: Snapshots are deduplicated with the original information, resulting in efficient capacity utilization. The ’clock’ begins based on two factors: when the share/export was created and if the file system is inactive for a period of time. Consequently, the timing of the snapshots will not occur at midnight every 24 hours and December 31st for the annual snapshot.

Snapshot Frequency	Snapshot Retention Period
every 90 seconds	1 hour
every hour	24 hours (1 day)
every 24 hours	7 days (1 week)
every 24 hours	14 days (2 weeks)
every 24 hours	21 days (3 weeks)
every 24 hours	30 days (1 month)
every month	3 months
every month	6 months
every month	9 months
every 7 days (weekly)	1 year
every month	1 year