Before blaming VMFS, look at the hardware.
When native tools fail—typically in cases of overwritten metadata blocks or severe disk-level corruption—the administrator must turn to specialized third-party utilities. Tools like (which includes VMFS parsers), Runtime Software's GetDataBack for VMFS , or Stellar Data Recovery for VMware can scan raw block devices to reconstruct the VMFS structure. These tools operate by recognizing VMFS file signatures (e.g., the fdc.db file for descriptor chains) and ignoring the corrupt filesystem layer. repair vmfs datastore
Therefore, the best "repair" is architectural. It involves: Before blaming VMFS, look at the hardware