I managed to do the migration by splitting over the two storages the remove system has. This made it work and I managed to move that one VM. However I still have a second one It's thick provisioned (LVM - never can remember the terms thin/thick). Offline isn't an option unfortunately since I need the services running, can't take if off for 15 hours. But since two of the services are docker containers, both having a separate disk of 500GB, I can make it work by setting up a two new systems and moving everything from the container there. Which would reduce the size by 1TB and make thing easier to manage. Was hoping I could finally upgrade the main xcp-ng last weekend.

Great! Keep us posted

@olivierlambert weird, I tried the restart, because I'm doing that a lot now since I have some backup issues. Need to move my old (very old) datacenter to the new XCP-NG Server and after that I can get to upgrading XO.

Good news! Keep us posted

Yeah for doing a fresh start it's easiest to just nuke the backup directory you were using and start over, have done it before and it's quick and easy vs trying to manually remove them all within XOA.