TM(4)                                                                    TM(4)



NAME
       tm - TM-11/TE-10 magtape interface

SYNOPSIS
       controller tm0 at uba? csr 0172520 vector tmintr
       tape te0 at tm0 drive 0

DESCRIPTION
       The tm-11/te-10 combination provides a standard tape drive interface as
       described in _m_t_i_o(4).  Hardware implementing this on the VAX  is  typi‐
       fied by the Emulex TC-11 controller operating with a Kennedy model 9300
       tape transport, providing 800 and 1600 bpi operation at 125 ips.

SEE ALSO
       mt(1), tar(1), tp(1), mtio(4), ht(4), ts(4), mt(4), ut(4)

DIAGNOSTICS
       te%d: no write ring.  An attempt was made to write on  the  tape  drive
       when no write ring was present; this message is written on the terminal
       of the user who tried to access the tape.

       te%d: not online.  An attempt was made to access the tape while it  was
       offline;  this message is written on the terminal of the user who tried
       to access the tape.

       te%d: can’’t switch density in mid-tape.  An attempt was made  to  write
       on  a tape at a different density than is already recorded on the tape.
       This message is written on the terminal of the user who tried to switch
       the density.

       te%d:  hard  error bn%d er=%b.   A tape error occurred at block _b_n; the
       tm error register is  printed  in  octal  with  the  bits  symbolically
       decoded.   Any error is fatal on non-raw tape; when possible the driver
       will have retried the  operation  which  failed  several  times  before
       reporting the error.

       te%d:  lost interrupt.  A tape operation did not complete within a rea‐
       sonable time, most likely because the tape was  taken  off-line  during
       rewind  or  lost  vacuum.  The controller should, but does not, give an
       interrupt in these cases.  The device  will  be  made  available  again
       after  this  message, but any current open reference to the device will
       return an error as the operation in progress aborts.

BUGS
       If any non-data error is encountered on non-raw tape, it refuses to  do
       anything more until closed.



4th Berkeley Distribution        May 15, 1985                            TM(4)