Backup Exec 12.5, Encryption, LTO4

Hello All,

I have a quick question for the community. We currently have a windows 2003 server being backed up by Symantec Backup Exec 12.5 to several LTO4 tape back up disks. We have been using this setup for the last 2 years and it has been working flawless.

The question that I have it when this was setup originally it was created with a policy with encryption turned off. If I edit the current policy and turn encryption on will it mess up the current data on the backup tapes, encrypt the entire disk or just the new data backed up?

Is there a downside to this process?

Thanks in advance.

Bigsease30