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COPYMT -- MAGNETIC TAPE COPIER (SON OF MAGCPY) %7 Page 1
COPYMT is a utility program to copy one magnetic tape to another
with simple processing. COPYMT replaces and supercedes MAGCPY and makes
full use of the new TAPOP. UUO in the 6.02 and later monitors.
The general command format is:
Backspace f files and r records (see command note 6)
Use a buffer size of n (default=1024(10)).
Terminate log file output if it was open.
4. /COMMENT:"STRING-NO-DOUBLE-QUOTES .LE. 28. CHARACTERS"
SEND THE STRING INSIDE QUOTES TO THE LOG FILE. IF NO LOG FILE
IS BEING MADE, THE SWITCH IS A NOOP.
Copy f files and r records, but do not copy ends-of-files. The
only way to write an end-of-file with /CONCAT is to use the
/EOF switch (this also turns off concatenation mode), or by
encountering the logical end-of-tape on the input tape. (see
command note 5)
Copy f files and r records (see command note 6)
Set the magtape density to one of: 200 bpi (7-track only), 556
bpi (7-track only), 800 bpi (default for 7-track, can be used
on 9-track also), or 1600 bpi (9-track only, default on
Write an end-of-file mark. This switch may appear on the input
side, but end-of-file markers are always written on the output
Controls what happens when there is an input error. ARG may be
Report the error and continue processing.
Do not report the error and continue processing.
COPYMT -- MAGNETIC TAPE COPIER (SON OF MAGCPY) %7 Page 2
When there is an error, prompt the terminal for an option.
Use n input buffers (default=2).
Enable for type-in while COPYMT is processing commands. This
switch is ignored in batch jobs. Legal commands are:
1. E - Give error totals
2. I - Ignore further type-in (cancel /IFTYP).
3. K - Kill processing, return to command mode
4. P - Pause and wait for another character to continue
5. S - Give elapsed time and cpu time used
Illegal commands will be answered with a bell.
Setup to send all messages from COPYMT to the specified log
file also. This switch sticks across different commands.
(i.e. you can give several different commands and the log file
will be appended to with each successive command). If /LOG is
given with no file specification, the default is
DSK:COPYMT.LOG[-]. (If parts of the file specification are
missing, the missing parts are filled in from the defaults.
The log file is opened after the whole command has been scanned
and processing is ready to begin. All the /CLOSE switch does
is clear some flags and re-enable for another /LOG switch.
Set the mode to one of:
1. BINARY (default)
This is DEC-compatible core-dump mode (whatever that is).
BINARY mode is the mode all magtapes are written in on the
DEC-10 when no other special mode (see INDUSTRY and
SEVENBIT modes) is used.
Use industry-compatible 8-bit mode. The lower 4 bits of
each word are ignored. 9-track only.
This is the TU70 "marvelous ASCII" mode. This mode is
legal only on 9-track TU70 tape units.
COPYMT -- MAGNETIC TAPE COPIER (SON OF MAGCPY) %7 Page 3
Disable monitor error retries. Use on very bad input tapes.
This also disables /REPORT. If error reporting is desired with
/NORETRY, you must also specify /REPORT.
Use n output buffers (default=2).
Set the parity for the tape unit to: ODD (default) or EVEN.
Note that 9-track tapes are always written in odd parity.
Used only with /TEST or /TAPTST (see "Tape testing facility").
/REPEAT directs COPYMT to test the whole tape N times. This is
very useful with tapes that have not been exercised in a long
time. Note that /REPEAT has no effect if /TEST is given an
argument in the command (to only test part of the tape).
This is used in conjunction with /NORETRY. Unless /REPORT has
been specified with /NORETRY, input errors will not be reported
to the user.
When testing a tape, perform a maximum of n retries (default=4)
before declaring the spot to be bad.
Rewind the tape unit.
Skip forward f files and r records (see command note 6)
At the end of a tape-to-tape or disk-tape copy, type the
elapsed and cpu time used.
Rewind and unload the tape unit.
Since COPYMT uses SCAN, all standard switches are also available.
Type /HELP:SWITCHES for a list of the standard switches.
All switches except /BUFSIZ, /ERROR, /IBUF, /MODE, /NORETRY, /OBUF,
and /REPORT are executed in the order they are given in the command
COPYMT -- MAGNETIC TAPE COPIER (SON OF MAGCPY) %7 Page 4
The above command would skip 3 records on the output tape, copy 3
files from the input to the output tape, skip 1 record on the input
tape, and then concatenate the next two files from the input tape into
one file on the output tape.
COPYMT -- MAGNETIC TAPE COPIER (SON OF MAGCPY) %7 Page 5
1. Input and output devices must be magtapes and may not be the
same physical magtape. An extension to this is that if either
the input device or the output device is a disk file, it will
be read(written) in IREAD mode. On tape, IREAD mode is one
logical record/physical record. On the disk, a record consists
of a word count followed by that many data words.
2. When copying from disk to tape or tape to disk, the default
extension is .DAT. To get a null extension you must type the
3. If no copy switch (either /COPY or /CONCAT) is given, the whole
input tape is copied to the output tape.
4. /COPY, /CONCAT are illegal on the output specification.
5. An end of file is never written when /CONCAT is used except at
command termination, or when /EOF is encountered. Note that
/EOF terminates concatenation mode.
6. To specify the number of files with /BACKSP, /COPY, /CONCAT,and
/SKIP, you must specify the number of records also. (I.E.
/BACKSP:3 means backspace 3 records and /BACKSP:3:0 means
backspace 3 files.)
7. COPYMT will also scan SWITCH.INI for applicable switches.
Allowable switches are /BUFSIZ, /ERROR, /IBUF, /IFTYP, /TIME,
and /OBUF. This is dependent on feature test switch FT$OPT=-1
at assembly time (default). See appendix A for a short
description of SWITCH.INI.
OPTIONS FOR /ERROR:QUERY
When there is an error on the input tape, and /ERROR:QUERY has been
specified, the user has several options available:
1. C - copy this record (I.E. record in error) and continue
2. D - dump record in error to LPT:COPYMT.LPT and ask again.
3. E - exit now. if you type CONTINUE to the monitor, you will be
asked again for an option.
4. G - same as "C", and change /ERROR:QUERY to /ERROR:CONTINUE.
5. H - type help message
6. S - skip this record (don't send to output tape) and continue.
OUTPUT TAPE END-OF-TAPE HANDLING
COPYMT -- MAGNETIC TAPE COPIER (SON OF MAGCPY) %7 Page 6
When COPYMT encounters and end-of-tape on the output tape, a double
end-of-file is written, and the user is asked for an option. Available
1. C - continue (assumes a new tape has been mounted).
2. E - exit. A continue will again ask for an option.
3. H - type some help on the terminal.
4. R - rewind the output tape (see note below)
5. U - rewind and unload the output tape (see note below)
Options "R" and "U" will again ask for an
option after the action has been
COPYMT-BATCH JOB INTERACTION
When COPYMT is used in batch, it will interact with the operator
under certain conditions. Currently, the only implemented condition is
output end-of-tape. To enable batch to use this facility, you must
include the line ".OPERATOR" in your batch control file before COPYMT is
run. Then, any messages that require operator interaction will be seen
on the CTY and the operator will be able to handle the condition by
replying as outlined above.
To reply to a batch job that has entered dialog mode, the operator
where <sjob#> is the subjob number assigned by the batch controller and
typed out on all messages to the operator, <line> is the line of text to
send to the batch job, and <cr> is a carriage return.
COPYMT -- MAGNETIC TAPE COPIER (SON OF MAGCPY) %7 Page 7
TAPE TESTING FACILITY
A tape testing facility also exists in COPYMT. This code is under
the assembly-time switch FT$TST (normally on). This allows you to test
your tapes by writing all ones with the monitor error-correction
disabled, so all bad spots will be seen by the program. It is believed
that the verification feature is not needed, and a simple FORTRAN
program can duplicate this feature if desired.
To use the tape testing feature the command is:
or: /TEST (attempts to use logical device "TAPTST")
The only other switches that may be applied to this command are
/REPEAT, /DENSITY and /PARITY. COPYMT will test any tape at any density
and correctly report the length of the tape, as well as the bad spots
and the total number of errors. Use of the /REPEAT:N switch permits you
to test the tape N times (very useful with old tapes).
In addition, if a number is specified with /TEST or /TAPTST, then
COPYMT will only test that number of records, and will not rewind the
tape. This is useful if you wish to strip some tape off the beginning
(I.E. /TEST:20 would test 20 feet of tape and then quit).
MTAPE MONITOR COMMAND
If COPYMT is assembled with FT$MTP=-1 (default), then there is a
monitor command MTAPE available. The command format is:
where /S is one of /BACKSP, /EOF, /SKIP, /REWIND, or /UNLOAD. A command
may contain several switches:
This would rewind the tape unit and then skip 100 records forward.
COPYMT -- MAGNETIC TAPE COPIER (SON OF MAGCPY) %7 Page 8
1. ?CMTBTS MTA BUFFER TOO SMALL FOR RECORD SIZE = n
COPYMT has encountered a record too large to fit in the magtape
buffer when copying from disk to tape. The copy is aborted.
You should respecify the command with a larger /BUFSIZ.
2. ?CMTCER COMMAND ERROR
The command did not contain anything decipherable.
3. ?CMTCGH CAN'T GET HIGH SEGMENT
COPYMT could not find its high segment. This message is not
expected to occur. Please show the terminal session to the
4. ?CMTCOD CAN'T OPEN DEVICE, FILE dev:file.ext
The OPEN for the specified device failed. It is probably
unavailable to you.
5. ?CMTDIF DSK IS FULL -- ABORTING
This message may occur when copying from magtape to disk if you
go over your logged-in quota.
6. ?CMTDNM DEVICE IS NOT A MAGTAPE - DEV
The specified device is not a magtape.
7. ?CMTID7 ILLEGAL DENSITY FOR 7-TRACK
The only legal densities for 7-track are
/DENSITY:200,/DENSITY:556, and /DENSITY:800.
8. ?CMTID9 ILLEGAL DENSITY FOR 9-TRACK
/DENSITY:200 and /DENSITY:556 are illegal for 9-track magtapes.
9. ?CMTIM7 ILLEGAL MODE FOR 7-TRACK
The only mode legal for 7-track operation is /MODE:BINARY.
10. ?CMTISO INPUT SWITCH ILLEGAL ON OUTPUT - SWITCH
The specified switch may appear only with input specifications.
11. ?CMTLER LOOKUP/ENTER ERROR (N) FILE DEV:FILE.EXT
12. ?CMTMNA MTA IS NOT AVAILABLE - MTA
The specified magtape is not available to your job.
13. ?CMTOSI OUTPUT SWITCH ILLEGAL ON INPUT - SWITCH
The specified switch may only appear on the output
COPYMT -- MAGNETIC TAPE COPIER (SON OF MAGCPY) %7 Page 9
1. %CMTIOE I/O STATUS = XXXXXX (YYY) ON DEV:FILE.EXT - CONTINUING
The specified I/O error has occurred on DEV:FILE.EXT. The I/O
error bits are XXXXXX, with the decoding YYY, which may be one
or more of:
The tape is write-locked. COPYMT will wait for you to
write-enable it. At the current time, recovery is not
available, so the job will be aborted (temporary
Due to hardware restrictions the operating system
has a very hard time telling if the IBM 729 tape
units are write-locked or not. Therefore, you will
probably not see this on the 729 tape units.
Rather, your job will probably go into IO wait, and
eventually you will get a hung device.
Device error -- data missed, tape is bad or transport is
Block too large -- you should recopy the tape with a larger
2. %CMTIOT TOTAL OF x yyyyyy ERRORS
This is the summary line output at the end of a copy. x is the
total number of errors seen on yyyyyy (input or output).
1. [CMTBKT BLOCK TOO LARGE ON INPUT--TRY LARGER /BUFSIZ]
COPYMT has encountered a record too large to fit in the buffer,
and will ask you if you want to continue copying. If you
answer "y", the copy will continue, else it will be aborted.
Note that this message and the continue question will not be
output to batch jobs, but the %CMTIOE I/O STATUS message will.
These messages are also seen by the operator in a batch job if enabled
to do so (see note above on COPYMT-batch interaction).
COPYMT -- MAGNETIC TAPE COPIER (SON OF MAGCPY) %7 Page 10
1. %CMTOTF OUTPUT TAPE IS FULL
The output tape is full. You must mount a new tape and respond
with the "c" option.
Tape testing messages:
These messages may be seen when using the /TEST (or /TAPTST) switch.
1. %CMTFAR FAILED AFTER n TRIES AT m FEET
COPYMT has tried n times (assembly time feature=10.) to write
on the tape at m feet and failed. This spot is probably
2. [CMTTNE TOTAL NUMBER OF ERRORS = n]
This message is output at the end of the test and is a report
of the total number of errors found on the tape.
3. [CMTTLI TAPE LENGTH = n]
COPYMT writes one foot tape records, and has found the length
of the tape to be n feet.
A PRIMER IN SWITCH.INI
SWITCH.INI is an option file. It allows you to place your favorite
switch settings in a file which is automatically read (unless disabled
by /NOOPTION) by several SYSTEM programs, COPYMT among them.
The format of a line in SWITCH.INI is:
A PROGRAM NAME MAY BE IN THE FILE MORE THAN ONE TIME, BY ADDING AN
OPTIONNAME, preceded by a colon, right after the program name. Thus a
typical SWITCH.INI file might be:
AFTER COPYMT (or any other program which scans this file) has
accepted a command from the user, SWITCH.INI will be scanned, and any
switches found for the program which have not been set by user command
will be applied. Thus, if the user had a /BUFSIZ switch in his command,
the /BUFSIZ:200 in SWITCH.INI would not be applied.
In addition, one may specify the desired option by adding the
switch "/OPTION:NAME" to the command string (anywhere should do the
trick). For instance, if you added /OPTION:BIG to a COPYMT command
string, the line beginning with COPYMT:BIG would be searched for. If
the specifed option is not found, a warning message will be issued.
COPYMT INSTALLATION GUIDE
1. COPYMT must be assembled with MACRO %50 or later.
2. COPYMT uses DEC-supplied universal files JOBDAT, UUOSYM,
MACTEN, and SCNMAC.
3. COPYMT loads REL:HELPER and rel:scn7b.
4. Feature test switches which may safely be changed are:
1. FT$OPT (default=on)
If this switch is on, SWITCH.INI will be read after a
command is accepted from the terminal.
2. FT$TST (default=on)
If this switch is on, the tape testing code will be
3. FT$MTP (default=on)
If this switch is on, COPYMT will handle the monitor
command MTAPE. This requires a small change to the
In COMCON.MAC, insert "C MTAPE,RUNFLG,RUNCMT" into the
names macro somewhere. Somewhere convenient (around
runque) insert the following two lines:
RUNCMT: MOVE P2,[SIXBIT/COPYMT/]
[end of COPYMT.DOC]