Parameters

   o  robot_name - The name of the robot device to be opened. On
      Digital UNIX, if the leading character of the name is not a
      slash (/), /dev/ will be prepended to the name.

   o  volume_tag - A NULL terminated character string that is the
      expected volume tag on the cartridge to be moved. On robots
      with vision support this string will be compared with the
      volume tag of the cartridge in the source slot and if it
      doesn't match the call will fail. This feature will not be
      used if the volume_tag is NULL or the empty string.

   o  drive - A NULL terminated character string that is the zero
      relative address of the drive which is to be used as the
      destination of the move.

   o  slot - A NULL terminated character string that is the zero
      relative address of the slot which is to be used as the source
      of the move.

   o  log_info - This is a character array that should be at least
      MRD_MAX_LOG_STRING in length. If this function fails as the
      result of a SCSI error, this will be filled with the formatted
      request sense data. If this function fails as the result
      of an operating system error, the operating system message
      particular to the error will be copied into the array.