Scheduling and Retention Policies

The backup execution window, the number of historical reservations, and the cleaning rhythm need to be arranged together.

If the tasks are often stacked, see if the execution window is too centralized and the backup range is too large.
If the historical file grows too fast, see if the number of local reservations and the pace of remote cleanup are reasonable first.
If you can’t find a suitable backup point when you need to restore, look back to see if the retention time is too short.