Backup Exec 2012 DLM troubles - any work around for us?
We have a backup server with 5x3TB hard drives and 2xLTO 4 tape drives.
That is used to backup 6 servers (not including itself) first to disk, and then duplicating to tape. We are lucky enough to be able to do a full backup of every server each night.
To save on costs, we went with 5 WD Green HD's, since they are not essential - if they die they die and are cheaply replaced, and we have the backups on tape anyway. We also didn't bother with RAID as green drives are not designed for that, so they are 5 separate drives.
We have 1 backup job going to each drive (except for 2 servers with a small amount of data on one of them) - I originally let BE choose where to put data, but that turned into a right mess.
We have a problem that one of the servers is quite large so it can only fit 3 whole days onto the 3TB drive.
Ok, so I originally set the overwrite protection on that job to 2 days - but then every Monday there is nothing on the drive since the DLM has wiped it as the backups have gone past the 2 days limit over the week end.
I can't change to 3 days as it will be filled up on the 4th day of backup before being groomed in time.
So now I've set it to 56 hours, meaning part-way through Monday it should get wiped - again not ideal.
What I was hoping for is some way to disable DLM from triggering every 4 hours - I only want it to trigger on a low space alert.
That would allow me to keep at least 1 backup right the way through until the backup on Monday is part-way through - at which point I assume it would clear up the space mid backup to enable it to finish?
Am I right in thinking that's how it works?
If so, is there some setting or registry hack to turn off the scheduled 4 hour grooming?
Or can I get it to not count weekends maybe?
Any help or other suggestions are appreciated - I'm so close to having it working perfectly for us!