Recovery Vmfs [work] May 2026

partedUtil setptbl /vmfs/devices/disks/naa.6000c29c4c5a2b1c gpt partedUtil add /vmfs/devices/disks/naa.6000c29c4c5a2b1c 1 2048 [End_Sector_Number] To find the end sector: partedUtil getUsableSectors /vmfs/devices/disks/naa.6000c29c4c5a2b1c

voma -m vmfs -f fix -d /vmfs/devices/disks/naa.6000c29c4c5a2b1c:1 voma will scan every file descriptor, fix chain corruption, and rebuild the allocation map. This tool has saved my bacon more times than I can count. Once the repair completes (or the mount succeeds), rescan again and verify the heartbeat.

We’ve all been there. You log into vCenter, click on a datastore, and your heart sinks. Instead of the happy green "Normal" status, you see "Not Mounted" or "Corrupted." Maybe an ESXi host lost power during a SAN firmware update, or someone accidentally deleted a LUN mapping. recovery vmfs

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.

First, unmount the datastore (force if necessary). partedUtil setptbl /vmfs/devices/disks/naa

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.

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. We’ve all been there

vmkfstools -V -r /vmfs/devices/disks/naa.6000c29c4c5a2b1c:1 If the metadata is corrupt (files show up, but VMs won't power on), you need the VMFS Offline Metadata Analyzer ( voma ).