Retention plans are an included feature of Open-E JovianDSS that control the automatic activation and deletion of snapshots.
They consist of rules which are defined by an interval and a retention period. The interval sets
how often a snapshot should be taken and the retention period how long each snapshot should be kept. Each value is described with one of the standard time units: seconds, minutes, hours, days, weeks, months or years.
Any
number of rules can be set for a retention plan to adapt it to any backup strategy.
Interval = 5 minutes
Retention period = 1 hour
Interval = 1 hour
Retention period = 3 days
Interval = 1 day
Retention period = 1 month
Now the data is secured with a short-, medium- and long-term rule. Any mistakes are easily undone, and the data is secured from data corruption and viruses because it can be restored to any state from the last hour, day or month.
This animation shows 4 time axes. One for the retention plan and one for each rule that defines it, as in the example above. The moving lines are snapshots which are created and deleted based on each rule's interval and retention
period.