1TM(4) Kernel Interfaces Manual TM(4)
2
6 tm - TM-11/TE-10 magtape interface
7
9 /sys/conf/SYSTEM:
10 # Setting AVIVTM configures the TM driver for the AVIV 800/1600/6250
11 # controller. For more details, see /sys/pdpuba/tm.c.
12 NTM tm_drives # TM11
13 AVIVTM YES # AVIV 800/1600/6250 controller
14 /etc/dtab:
16 #Name Unit# Addr Vector Br Handler(s) # Comments
17 tm ? 172520 224 5 tmintr # tm11 driver
18 major device number(s):
20 raw: 7
21 block: 1
22 minor device encoding:
23 bits 0003 specify TS drive
24 bit 0004 specifies no-rewind operation
25 bits 0030 specify recording density:
26 0000: 800BPI
27 0010: 1600BPI (AVIVTM and some other controllers)
28 0020: 6250BPI (AVIVTM only)
29
31 The tm-11/te-10 combination provides a standard tape drive interface as
32 described in mtio(4). The standard DEC tm-11 operates only at 800 bpi.
33 Other controllers of this type may also allow operation at 1600 bpi,
34 under software control or by switching manually.
35
37 /dev/MAKEDEV script to create special files
38 /dev/MAKEDEV.local script to localize special files
39
41 mt(1), tar(1), tp(1), mtio(4), ht(4), ts(4), mt(4), dtab(5), autocon‐
42 fig(8)
43
45 te%d: no write ring. An attempt was made to write on the tape drive
46 when no write ring was present; this message is written on the terminal
47 of the user who tried to access the tape.
48 te%d: not online. An attempt was made to access the tape while it was
50 offline; this message is written on the terminal of the user who tried
51 to access the tape.
52 te%d: can't change density in mid-tape. An attempt was made to write
54 on a tape at a different density than is already recorded on the tape.
55 This message is written on the terminal of the user who tried to switch
56 the density.
57 te%d: hard error bn%d er=%b. A tape error occurred at block bn; the
59 tm error register is printed in octal with the bits symbolically
60 decoded. Any error is fatal on non-raw tape; when possible the driver
61 will have retried the operation which failed several times before
62 reporting the error.
63 te%d: lost interrupt. A tape operation did not complete within a rea‐
65 sonable time, most likely because the tape was taken off-line during
66 rewind or lost vacuum. The controller should, but does not, give an
67 interrupt in these cases. The device will be made available again
68 after this message, but any current open reference to the device will
69 return an error as the operation in progress aborts.
70
72 If any non-data error is encountered on non-raw tape, it refuses to do
73 anything more until closed.
743rd Berkeley Distribution January 28, 1988 TM(4)