HT(4) BSD/vax Kernel Interfaces Manual HT(4)NAMEht — TM-03/ TE-16, TU-45, TU-77 MASSBUS magtape device interface:
master ht0 at mba? drive ?
tape tu0 at ht0 slave 0
The TM-03 transport combination provides a standard tape drive interface
as described in mtio(4). All drives provide both 800 and 1600 BPI; the
TE-16 runs at 45 IPS, the TU-45 at 75 IPS, while the TU-77 runs at 125
IPS and autoloads tapes.
tu%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.
tu%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.
tu%d: can't change 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
tu%d: hard error bn%d mbsr=%b er=%b ds=%b. A tape error occurred at
block bn; the ht error register and drive status register are 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.
SEE ALSOmt(1), tar(1), tp(1), mtio(4), mt(4), physio(4), tm(4), ts(4), ut(4)HISTORY
An ht driver appeared in Version 6 AT&T UNIX.
May hang if physical (non-data) errors occur.
4th Berkeley Distribution June 5, 1993 4th Berkeley Distribution