| `minio_system_drive_free_bytes`                | `gauge`   | Total storage free on a drive in bytes                             | `drive,set_index,drive_index,pool_index,server`     |
| `minio_system_drive_total_bytes`               | `gauge`   | Total storage available on a drive in bytes                        | `drive,set_index,drive_index,pool_index,server`     |

			}
			if errs[diskIndex] == nil {
				t.Errorf("Expected error not received, driveIndex: %d", diskIndex)
			}
		} else {
			if disk == nil {
				t.Errorf("Drive erroneously filtered, driveIndex: %d", diskIndex)
			}
			if errs[diskIndex] != nil {
				t.Errorf("Unexpected error, %s, driveIndex: %d", errs[diskIndex], diskIndex)
			}

		}
	}
}