I wanted to share my observations from the V8 upgrade as well.
Our environment exists out of Hyper-V Clusters (3 with CSV's and one with SMB 3.0 share).
I use incremental backup method with weekly synthical full + transform
I have noticed that :
- the first incremental after the upgrade TRIPLED in size !
=> second incremental still shows a 20% larger incremental file
- the processing speed stays the same, but the duration of the job went from (cluster3) 2 hours to 3 hours for the incremental part.
=> i'm guessing the time to create the snapshot and the preparation went up
- the time to do a transformation went from 2 hours to 4 hours
- the new option 'Volume snapshots -> allow processing of multiple VM's with a single snapshot' doesn't work
=> cluster1 has two CSV's, so in the job i'd expect to see two snapshots...but I see a snapshot on every VM happen.
=> unless there's a condition that states that the vm's in the same volume also need to sit on the same host in order to be processed together.
=> cluster2 has three csv's -> job just stays at 0% 'waiting for infrastructure' ...I waited 8 hours
/ testing again without the option.
Also a reported bug from myself regarding layout when you go to 'virtual machine' tab hasn't been solved, while it was accepted and expected to be.
Looks like i'll be very busy with support this week.