vmware-vdiskmanager -r source.vmdk -t 0 recovered.vmdk If the corruption is at the VMFS datastore level:
vmware-vdiskmanager -c -s 40GB -a lsilogic -t 0 mydisk.vmdk To clone a corrupt VMDK (skipping bad blocks): recover corrupt vmdk
vmware-vdiskmanager -R <your-disk>.vmdk To check and repair: vmware-vdiskmanager -r source
(works on some sparse VMDKs):