Symptoms: Datastore shows as "Unmounted" or "Corrupt," VMs missing, but LUN size correct.
# Resignature changes UUID but preserves data esxcli storage vmfs resignature -l <lun-id> -f recovering vmfs datastore
# On ESXi vmkfstools -x check /vmfs/volumes/RecoveredDS/VM/VM.vmdk Symptoms: Datastore shows as "Unmounted" or "Corrupt," VMs