I have hopefully a quick question.
I am using VBR 8 Patch 3. The backup jobs are run using Direct SAN mode and the repository is a Windows Server 2012 R2 with Dedupe enabled on the volume.
We are currently using Forever Forward as the backup methodology and have a retention period set to 2.
We then have a Backup Copy process that is a 1 to 1 of all the backup jobs. The backup copy goes over the LAN is stored on another repository running Windows Server 2012 R2 with Dedupe enabled on the volume too. We are keeping 30 restore points for the Backup Copy.
What I am seeing is massive dedupe savings on the Backup Copy Repository and significantly less on the primary backup repository.
Primary: 12% Dedupe Rate - Current number of restore points: 2 - Disk Used: 8TB
Backup Copy: 65% Dedupe Rate - Current number of restore points: 10 - Disk Used:4.4TB
Am I missing something in relation to the dedupe rates and disk space being used? Is this normal?
I have tried to follow all the best practice in relation to dedupe on Windows Server 2012 R2 to be found on the forums and other resources.
Sorry if this comes across as a silly question but if someone could give some guidance I would appreciate it.
Let me know if I need to provide more information.