Backups are disabled by default. If you have previously enabled them and want to disable them, perform the following steps:
Log in as an administrator with configuration privileges.
Stop Calendar Server services by issuing the stop-cal command.
Change to the directory where the ics.conf file 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.