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85423ffc KM |
1 | .\" Copyright (c) 1980 Regents of the University of California. |
2 | .\" All rights reserved. The Berkeley software License Agreement | |
3 | .\" specifies the terms and conditions for redistribution. | |
4 | .\" | |
95f51977 | 5 | .\" @(#)ht.4 6.2 (Berkeley) 6/1/86 |
85423ffc | 6 | .\" |
95f51977 | 7 | .TH HT 4 "June 1, 1986" |
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8 | .UC 4 |
9 | .SH NAME | |
10 | ht \- TM-03/TE-16,TU-45,TU-77 MASSBUS magtape interface | |
11 | .SH SYNOPSIS | |
a0cd2adf | 12 | .B "master ht0 at mba? drive ?" |
85423ffc | 13 | .br |
a0cd2adf | 14 | .B "tape tu0 at ht0 slave 0" |
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15 | .SH DESCRIPTION |
16 | The tm-03/transport combination provides a standard tape drive | |
17 | interface as described in | |
a0cd2adf | 18 | .IR mtio (4). |
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19 | All drives provide both 800 and 1600 bpi; the TE-16 runs at 45 ips, |
20 | the TU-45 at 75 ips, while the TU-77 runs at 125 ips and autoloads tapes. | |
21 | .SH "SEE ALSO" | |
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22 | mt(1), |
23 | tar(1), | |
24 | tp(1), | |
25 | mtio(4), | |
26 | tm(4), | |
27 | ts(4), | |
28 | mt(4), | |
29 | ut(4) | |
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30 | .SH DIAGNOSTICS |
31 | \fBtu%d: no write ring\fR. An attempt was made to write on the tape drive | |
32 | when no write ring was present; this message is written on the terminal of | |
33 | the user who tried to access the tape. | |
34 | .PP | |
35 | \fBtu%d: not online\fR. An attempt was made to access the tape while it | |
36 | was offline; this message is written on the terminal of the user | |
37 | who tried to access the tape. | |
38 | .PP | |
1b4637f3 | 39 | \fBtu%d: can't change density in mid-tape\fR. An attempt was made to write |
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40 | on a tape at a different density than is already recorded on the tape. |
41 | This message is written on the terminal of the user who tried to switch | |
42 | the density. | |
43 | .PP | |
44 | \fBtu%d: hard error bn%d mbsr=%b er=%b ds=%b\fR. A tape error occurred | |
45 | at block \fIbn\fR; the ht error register and drive status register are | |
46 | printed in octal with the bits symbolically decoded. Any error is | |
47 | fatal on non-raw tape; when possible the driver will have retried | |
48 | the operation which failed several times before reporting the error. | |
49 | .SH BUGS | |
50 | If any non-data error is encountered on non-raw tape, it refuses to do anything | |
51 | more until closed. |