if err != nil {
							continue
						}
					} else {
						r = io.NopCloser(bytes.NewBuffer([]byte{}))
					}
					// Keep disk path instead of ID, to ensure that the downloaded zip file can be
					// easily automated with `minio server hostname{1...n}/disk{1...m}`.
					err = fn(r, disk.Hostname(), disk.Endpoint().Path, pathJoin(volume, si.Name), si)
					r.Close()
					if err != nil {