tlabel(1)                      DG/UX R4.11MU05                     tlabel(1)


NAME
       tlabel - initialize a tape with a volume label

SYNOPSIS
       label [ -a ADN ] [ -d density ] [ -l IBM|ANSI ] [ -r  ] -v VSN

DESCRIPTION
       tlabel writes a volume label onto a tape.  This initializes the tape
       for use with the other REELexchange commands.  All previous data on
       the tape is lost after application of this command.  This is the only
       REELexchange command which need not be sandwiched by the commands
       taccess and trelease.  A tape must be labeled before it can be
       written or read by twrite and tread.  The command tlabel -r reports
       the VSN of the labeled tape.

OPTIONS
       -a ADN "Tape Drive." Specifies which tape drive to use.  The name
              specified should be one of the ADN files from the
              /var/reelexchange/adn directory.  If this option is not
              specified, the tape drive named in the file
              /var/reelexchange/default.adn will be used.  See
              reelexchangeintro(1) for more information on the format of
              ADN files.

       -d density
              "Density." The density in bpi of the tape.  Common values are
              1600, 3200, and 6250.  The density specified here should match
              the density field in the ADN file of the tape drive that is
              being accessed.  Default density is 1600.

       -l     "Format." Specifies the format of the tape - either IBM or
              ANSI.  Default format is ANSI.

       -r     "Read." Read and display the volume serial number of a tape.

       -v VSN "VSN." The Volume Serial Number(VSN).  All labeled tapes
              possess volume serial numbers by which they are identified.
              Good tape practice is to give each tape a unique volume serial
              number.  The VSN is a six character alphanumeric symbol.

FILES
       /var/reelexchange/default.adn   File containing name of default tape
                                       drive.

       /var/reelexchange/Adn/*         Each file in this directory describes
                                       a tape drive on the system.  The name
                                       of one of these files is given with
                                       the -a option to specify a particular
                                       tape drive for I/O.

       /var/reelexchange/dibm         IBM label defaults.

       /var/reelexchange/dansi        ANSI label defaults.

SEE ALSO
       reelexchangeintro(1), taccess(1), tdisplay(1), tkey(1), tposn(1),
       tread(1), trelease(1), tsniff(1), twrite(1).


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