I have a Dell ML6020 that automatically cleans the tape drives. Lately Backup Exec has been trying to clean the tape drives, and I have no idea why, as I don't believe it's ever done this before in the 3 years I've managed this sytem. I reset the cleaning statistics but I cannot figure out how to tell Backup Exec to not try to clean tapes. Assistance is appreciated.
Please check your TapeAlerts. These should be visible in the BE alert history. They might also be visible in the library UI (web or LCD).
As Bhavik said, BE will respond to those cleaning requests from the tape drive by attempting to clean the drive. I have never heard of BE running random cleaning jobs for no reason.