CS80 describe of /dev/re11:
  controller:   0x8003  installed unit word
                  1000  max instantaneous xfr rate (Kbytes/sec)
                     1  CS/80 integrated multi-unit controller
  unit:              1  generic device type (flexible or removable media)
                079070  device number (6 bcd digits)
                   256  # of bytes per block
                    64  # of blocks buffered
                     0  recommended burst size
                   266  blocktime (microseconds)
                   500  continuous average transfer rate (Kbytes/sec)
                    18  optimal retry time (centiseconds)
                    40  access time parameter (centiseconds)
                     1  maximum interleave factor
                  0x00  fixed volume byte
                  0x01  removeable volume byte
  volume:          626  maximum cylinder address
                     1  maximum head address
                    63  maximum sector address
                 80255  maximum single-vector address
                     1  current interleave factor