vmware-vdiskmanager -R <your-disk>.vmdk To check and repair:
(works on some sparse VMDKs):
vmware-vdiskmanager -c -s 40GB -a lsilogic -t 0 mydisk.vmdk To clone a corrupt VMDK (skipping bad blocks): recover corrupt vmdk
voma -m vmfs -f check -d /vmfs/devices/disks/naa.XXXXX Then attempt repair: vmware-vdiskmanager -R <your-disk>