Backup Exec 2010 R3 backing up Exchange Server to Buffalo NAS and backup sets keep getting delete by new one
We bought a new Buffalo NAS and I am setting up Backup to Disk Folder option in order to backup Exchange Server with GRT. But every night the backup job keep deleting previous day's backup sets. I want to keep the data at least two months. The Buffalo has 6TB on it, I also set "Overwrite recycle media contain in the target media set before overwriting scratch media set" in the media management. That still doesn't work.
If I using my local server disk to backup it will hold as long as the disk has space left.
What else I can do to prevent data keep getting deleted? please help.