Recovery Vmfs -

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 ).

First, unmount the datastore (force if necessary). recovery vmfs

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). vmkfstools -V -r /vmfs/devices/disks/naa

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 You need to know the old partition size

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.

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.