Data ONTAP provides a default Snapshot copy schedule for each FlexVol volume. You can configure the schedule to fit your needs. The schedule creates Snapshot copies automatically, and deletes older Snapshot copies after a specified period.
For FlexVol volumes, the default Snapshot copy schedule automatically creates one daily Snapshot copy Monday through Saturday at midnight, an hourly Snapshot copy five minutes past the hour, every hour, and a weekly Snapshot copy. Data ONTAP retains the two most recent nightly Snapshot copies and the six most recent hourly Snapshot copies, and deletes the oldest nightly and hourly Snapshot copies when new Snapshot copies are created.