The Log Maintenance screen provides two methods for deleting logs automatically:
By number of logs (minimum: 30,000, maximum: 1,000,000, default: 1,000,000)
By the age of logs (minimum: 1 day, maximum: 90 days, default: 90 days)
Purge offset specifies the number of logs Control Manager deletes when the number of logs for a log type reaches the maximum. The default purge setting is 1000 for all log types.
The Log Maintenance screen appears.