VMDK shows as zero bytes but flat data exists.
vmkfstools -V /vmfs/volumes/datastore1 # Scans for recoverable VMDK signatures This outputs a list of candidate VMDKs with their start sector and size. recover vmdk from datastore
vmkfstools -x repair /vmfs/volumes/datastore1/VM/VM.vmdk Recover a deleted VMDK by scanning free blocks (VMFS5/6 only). VMDK shows as zero bytes but flat data exists