We are running Backup Exec 2010 and are pushing our B2D backups to a Drobo Pro connected via 1Gb iSCSI with 8 2TB hard drives. This setup has worked very well for us for a long time, until recently when the Drobo filled up. I started noticing that Backups were taking days instead of hours and eventually just failing.
I have overwrite protection set on our incrementals for 4 weeks and weeklies for 1 year, which I believe is pretty standard. However, it appears that the overwrite process is incredibly slow, and that is causing problems.
Is there a way I can tell Backup Exec to automatically just delete the old data? Rather than have it sitting there and taking up space, this way I don't have to worry about the overwrite.
Is there a way to speed this up? I know Drobos aren't speed demons, but I can't believe that it would be this bad.