voma -m vmfs -f check -d /vmfs/devices/disks/naa.YOUR_DISK_ID If errors found, attempt fix:

voma -m vmfs -f fix -d /vmfs/devices/disks/naa.YOUR_DISK_ID -f fix can cause data loss if the corruption is severe. 5. Recover Without VOMA (Manual Partition Repair) Sometimes the partition table is corrupt but VMFS data remains. a) Identify partition start sector Use fdisk or partedUtil :

vim-cmd hostsvc/storage/refresh Unmount first:

esxcfg-datastore -u "DatastoreName" Run check only (read-only):

ls /vmfs/devices/disks/ Check if VMFS volume is mounted:

partedUtil set /dev/disks/naa.YOUR_DISK_ID 1 128 <end_sector> FB 0 Then rescan and mount. If native tools fail, use a Linux VM with the corrupted disk attached (physical RDM or passthrough).