Good evening everyone,
I know it's late, but I have stumbled across a situation that I need some help figuring out.
I've been experimenting with Windows Server 2012 Dedup, which seems very good from what I can tell. I'm only using it on an archive of previous years data, 1999 - 2012, to be specific.
This archive consists of a couple million files, a little over 1TB of data. 7zip files make up most of this archive, but not all.
I thought I would see if I could make the backup job run faster since it's a Veeam backup and volume based. 2012 dedupe seemed like a good thing to test.
I took the original volume, 1.25TB with 249GB free and turned on dedupe for the volume.
It took a while!!!!!! I even ran it in powershell with high priority.
After dedupe, I made sure the volume was degragmented and optimized.
Then, I did both the garbage collection and scrubbing.
After that, just to make sure all free space was zeroed out, I ran sdelete -z on it.
At this point, I thought that if I ran a full Veeam backup on the volume, I'd see a much smaller backup file, which would then take much less time to copy to tape.
I was very disappointed. This hasn't been the case.
I can provide much more info and screenshots of all the configs, backup job, etc....
Would love to see if anyone else has experimented with volume based backups that have been deduplicated, yet don't see the backup being as small as expected.
Thank you all so much!! This is a great community and I value your expertise.
Mike Johnson