resp, err := s.getStorage().VerifyFile(r.Context(), volume, filePath, fi)
	done(err)
	if err != nil {
		return
	}

	buf, _ := resp.MarshalMsg(nil)
	w.Write(buf)
}

func checkDiskFatalErrs(errs []error) error {
	// This returns a common error if all errors are
	// same errors, then there is no point starting
	// the server.
	if countErrs(errs, errUnsupportedDisk) == len(errs) {