Hi,
does the block level change detection work, if inside the VM DEDUP is activated?
As it does work for all our VM's, but not the one that holds our storage of about 1,5 TB.
In 99 % of all cases, it transfers all data again, just sometimes it does it correct and only transfers about 40 GB, which sounds more reasonable.
First I thought, the storage is new, DEDUP will have a lot of changes, that causes this, but now after 2 months, it's still the same, so backups take serveral hours, instead of just a short time, as the storage doesn't change that much at all.
So I am wondering, as there are no errors whatsoever, just that I see backups take unreasonable long for small changes of a big VHDX. And the odd thing is, all other VM's, including a Linux one, works correct. I read, DEDUP is no problem with DPM, but seems
it could be with changed blocks, while I doubt, that 1,5 TB of blocks are changed daily...
It is a Windows 2012 Cluster with DPM 2012 SP1, all patches applied.
Thanks
Patrick