Hello,
I have hardware issues, specially on the disks.
Unfortunately I don't have fully access to the machine to be able to confirm if is effectively disks( more likely ) or back-plane.
Interestingly some of those VMs does work, I can boot them and work with them but cannot copy the disks.
Since those are Windows server VM I have also tried the Windows backup tool and this failed as well to perform to finish the backup.
So I'm closing this investigation as hardware issue.