Recovery Vmfs Page

Have you ever recovered a "dead" VMFS datastore? What trick worked for you? Let me know in the comments below. Always ensure you have current, restorable backups before attempting filesystem repairs. The author assumes no liability for data loss resulting from the misuse of these commands.

Create a new partition (assuming a standard 1MB offset):

partedUtil getptbl /vmfs/devices/disks/naa.6000c29c4c5a2b1c If the output is gibberish or empty, the partition table is zeroed out. You need to know the old partition size. Usually, a VMFS datastore uses the entire LUN (Partition starting at sector 2048). recovery vmfs

Stay calm. Run esxcfg-scsidevs . Use vmkfstools -V . And whatever you do,

The Virtual Machine File System (VMFS) is incredibly resilient, but it isn't invincible. The good news? You just need to know the right commands and the right order of operations. Have you ever recovered a "dead" VMFS datastore

Once the partition is recreated, attempt the mount again:

esxcfg-volume -l # Find the volume name esxcfg-volume -U [Volume_Name] Run the repair. You must unmount the volume first, or you will crash the host. Always ensure you have current, restorable backups before

esxcfg-scsidevs -l Look for the device with the correct size and LUN number that does not have a filesystem label next to it. Now, we attempt a manual mount. Use the -r flag for read-only to ensure we don't make the situation worse.