We rushed out and installed Windows 2016 to utilize the new REFS/VEEAM 9.5 feature. Our most pressing concern was to bring down the merge time of the Copy Jobs but it has not.
Currently it takes over 120 hours to merge 4TB incremental into the 30TB VBK file. It is using [fast clone] so I guess that REFS features is detected and used.
The backup SAN is not blistering fast but it’s not a slow NAS (12x6TB SAS 7K HPE MSA 2040)
Is this to be expected?