We encountered an issue on one of our hosts with our Xen orchestra backups where
- The local storage on the host was 100% full and the local storage logs reported 'run out of space whilst coalescing'
- The base vdk of the VM we want to recover was un-usable
- Xva snapshot backups of the VM were present but the most recent is six months old
- Several vhd files are present and last written to at the same time the VM we need restored had its last delta backup taken
Is it possible to restore from a delta backup when the base vhd file is missing but a old xva snapshot backup is present ?