partedUtil set /dev/disks/naa.xxxxxx 1 2048 <end_sector> aa31e02a400f11db9590000c2911d1b8 0 Where aa31... is the VMFS partition GUID. The end sector is total sectors minus 1 (e.g., getptbl can show max sector). On a Linux recovery host with vmfs-tools :
partedUtil get /dev/disks/naa.xxxxxx If the table is empty but you know the start sector (usually 2048 or 128), recreate: recover vmfs 5 datastore
vmfs-fuse /dev/sdb /mnt/recover -o ro This allows read-only mounting of VMFS 5. voma is the primary native tool for diagnosing and fixing VMFS corruption. partedUtil set /dev/disks/naa
| Structure | Sector offset (relative to partition start) | |-----------|-----------------------------------------------| | VMFS FDC (File Descriptor) | 1-63 | | Heartbeat region 1 | 128 | | Heartbeat region 2 | 256 | | File/directory tables | 4096+ | On a Linux recovery host with vmfs-tools :
esxcli storage vmfs snapshot resignature -l <original_label> Or mount as snapshot:
voma -m vmfs -f fix -d /dev/disks/naa.xxxxxx:1 ⚠️ Always take a backup before running fix . Major corruption may require full recovery tools. When native methods fail, use dedicated VMFS recovery software: