HT
Section: Devices and Network Interfaces (4)
Updated: vax
Index
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BSD mandoc
BSD 4
NAME
ht
- TM-03 / TE-16
TU-45
TU-77
MASSBUS
magtape device interface:
SYNOPSIS
master ht0 at mba? drive ?
tape tu0 at ht0 slave 0
DESCRIPTION
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.
DIAGNOSTICS
- 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 density.
- "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 ALSO
mt(1),
tar(1),
tp(1),
mtio(4),
mt(4),
physio(4),
tm(4),
ts(4),
ut(4)
HISTORY
An
driver appeared in
AT&T System
v6 .
BUGS
May hang if physical (non-data) errors occur.
Index
- NAME
-
- SYNOPSIS
-
- DESCRIPTION
-
- DIAGNOSTICS
-
- SEE ALSO
-
- HISTORY
-
- BUGS
-
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Time: 06:48:52 GMT, May 19, 2025