NAME

mtio − tape device files

DESCRIPTION

The files in /dev/r?t* refer to tape I/O devices.  These files are created using the /com/edmtdesc (edit magtape descriptor) command. 

FILES

Tape device filenames are:

/dev/rmt8magtape, rewind on file close
/dev/rmt12magtape, no rewind on file close
/dev/rct8cartridge tape, rewind on file close
/dev/rct12cartridge tape, no rewind on file close

The block length associated with /dev/rmt* files is 10240 bytes.  Cartridge tape (/dev/rct*) files have a block length of 512 bytes.  If you need to change the block length (or change or examine any other parameter of a magtape descriptor file) use /com/edmtdesc.