Hello,
Are you using Backup exec for Windows servers? If yes, then refer to the following technotes in order to configure the append periods and the overwrite protection periods for the device:
http://support.veritas.com/docs/192265
http://support.veritas.com/docs/237374
In case you are not using backup exec for Windows servers, do reply with details on your configuration so that we will move this thread to the appropriate forum.
Note : If we do not receive your reply within two business days, this post would be marked �assumed answered� and would be moved to �answered questions� pool.
Regards.