Data Recovery and Disk Utilities Forum @R-TT

No, the problem was that the computer starting the back up was blocked by the server because of some McAffe setting but the blocking was only occuring if the data was deduplicated.

Hello,

If anyone ever have a similar problem, I found the solution here : https://kc.mcafee.com/corporate/index?p ... id=KB77623

The back up is started via a script but I have access to the server.

I did more testing and I never have any problem with the differential backup unless a deduplication have been run on the server. It really seem like the deduplication is causing some problem with the back up. Sadly we need to run ...

Hello,

We are running backup on a server with active deduplication to keep the size of the files to a minimum. Everything work fine until we try to take a differential backup of the original file. ( the original file is duplicated at this moment )

We get the following error right after the backup ...