Description:
The 'Recurrence Interval' of the Archive/Purge facility determines how often the Archive/Purge rule is run during the chosen workshift Schedule.
Solution:
An Archive and Purge Rule fires at the specified start time of the Schedule.
For example, in the case of the out-of-the-box Non-Business-Hours schedule, the workshift is defined, for weekdays, as 5 pm to 8 am. When a rule using this schedule is active, it fires at 5 pm each weekday. It then gets fired at every occurrence of the 'recurrence interval' within the schedule. In the case of the non-business-hours schedule this occurs until 8 am in the morning.
Examples:
Note that in the case of a 24 hour schedule, when you restart the Service Desk Manager services, the rules fire again even though the recurrence interval has not yet been met.