Backups are disabled by default. If you have previously enabled them and want to disable them, perform the following steps:
At a command line, change to the directory where the ics.conf is located:
Disable archive backups by setting the following ics.conf parameter to "no":
When you have completed editing the ics.conf file, restart Calendar Server:
The calendar services do not need to be stopped to edit the ics.conf file, but you must restart the services in order for the changes to take effect.