I have Windows Server 2012 R2 Standard installed with the Essentials Experience role installed. The server drives are backed up on an external USB3 drive enclosure containing 4 drives twice a day.
As the server backup is taking a long time, I diagnosed that it was backing up many files who haven't change since a long time. Some of them more than a year ago, as per the modified date of the file. I can't say if it is backing up all the files each time, but I know he copy many unchanged files. I was expecting that it would copy only the changed files.
Is there something wrong with my configuration?