Run this simple cron job or script weekly:
| If this is missing... | Your data status | Recovery difficulty | | :--- | :--- | :--- | | vmname.vmdk (1KB) | (Needs a map) | Easy (5 minutes) | | vmname-flat.vmdk (100GB) | Lost (Data is gone) | Hard (Requires backups) | | vmname.vmx (Config) | Safe (VM still runs) | Easy (Just recreate) | Pro Tip: Stop This From Happening Again Enable VMware Snapshots with memory? No. The real pro move is backing up the descriptor files . vmdk recovery file
vmkfstools -x check /path/to/your/orphaned-flat.vmdk If it reports a problem, run: Run this simple cron job or script weekly:
If you’ve ever stared at a failed VM and seen the words “Unable to open disk” or “Metadata file is missing,” you know the feeling. Your stomach drops. The real pro move is backing up the descriptor files
find /vmfs/volumes/*/*/*.vmdk -size -10k -exec cp {} /backup/descriptors/ \; Those tiny descriptor files take up kilobytes of space but save hours of panic. Don't confuse a missing map with missing data. If you see a -flat.vmdk file sitting on your datastore, your VM is not dead—it's just sleeping. With vmkfstools and ten minutes of focus, you can bring it back to life.