NOTE: This driver has not been ported from
4.4BSD yet.
The
uu device provides access to dual DEC TU-58 tape cartridge drives connected to the UNIBUS via a DL-11W interface module.
The interface supports only block I/O to the TU-58 cassettes (see
physio(4)). The drives are normally manipulated with the
arff(8) program using the ``m'' and ``f'' options.
The driver provides for an optional write and verify (read after write) mode that is activated by specifying the ``a'' device.
The TU-58 is treated as a single device by the system even though it has two separate drives, ‘
uu0' and ‘
uu1'. If there is more than one TU-58 unit on a system, the extra drives are named ‘
uu2', ‘
uu3' etc.