Hello,
Has the previous post helped in answering your question? As already mentioned, Backup Exec will display alerts in the alerts tab regarding media and its operations.The alerts will be like warnings for you which will help decide that cleaning is needed. It also depends upon the operations performed on the device which determine the frequency of cleaning as well as the type of media. The device manual can also help better in this regard.
Hope this answers your question. In case of further doubts, do write back to us at the forum. However 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.