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PDP-10 Archives
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integ_tools_tops20_v7_30-apr-86_dumper
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tools/tapeinfo/tapeinfo.mem
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Since many Digital customers utilize Tops-20 machines and
Vax hardware at their sites, we have received several inquiries on how
one might transport ASCII data generated from a Tops-20 environment to a Vax
environment. By using the available system commands on each individual
machine this process can be accomplished.
To transfer a file from a Tops-20 operating system to a labeled
tape to be processed on a VAX-11/780 , you must do the following:
1. Initialize a tape using the OPR command SET TAPE MTAnn: INITIALIZE,
to have ANSI standard labels if you have operator or wheel privileges.
( NOTE: Have your operator do the Initialize procedure for you. )
2. Mount the tape using the MOUNT TAPE command, specifying the volid,
label type, and density. The density must be 800 or 1600 bpi.
3. Copy the file(s) onto tape using the COPY command, in ASCII mode.
4. Be sure the record format is either fixed or variable. The VAX/VMS
operating system does not recognize span records.
5. After the file(s) has been copied to tape, dismount the tape using
the DISMOUNT TAPE command, to relinquish control of the tape drive.
The following is a photo session demonstrating what is described above and
in the Tops-20 Software notebook 11, chapter 6 - "INTERCHANGING TAPES":
Also the VMS commands in the example are further described under the
VAX/VMS Command Language User's Guide:
**************************************************
* Step 1---> initialize the tape as ANSI label *
* ( Note: Place a write-ring on the tape ) *
**************************************************
TOPS-20 Command processor 5.1(1766)
@ena
$opr
OPR>show staTUS tapE-DRIVE
OPR>
12:51:44 -- Tape Drive Status --
DRIVE STATE VOLID REQ# JOB# USER
----- ----- ------ ---- ---- ----
MTA1: Loaded
MTA2: Unloaded
OPR>set tapE-DRIVE mta1: inITIALIZE /laBEL-TYPE:ansi /vOLUME-ID:tape1
OPR>
12:52:37 -- MTA1: Volume TAPE1 Initialized --
Label type: ANSI Density: 1600
12:52:37 -- INITIALIZE Completed --
MTA1: available for user tape requests
OPR>ex
*********************************************************
* *
* The tape is finally intitalized as a labeled *
* ANSI tape with a tape-id name called TAPE1 *
* *
*********************************************************
Page 2
== Process of copying a file from a Tops-20 operating system onto tape ==
********************************************************
* Step 2----> Remount the tape using the MOUNT command *
********************************************************
@MOUNT TAPE (NAME) TAPE1: /WRITE-ENABLED /LABEL-TYPE:ANSI
[Mount request TAPE1 queued, request #30]
[Tape set TAPE1, volume TAPE1 mounted]
[TAPE1: defined as MT0:]
@TY ASCII.TXT.1
*****************************************************************
* *
* This is the ASCII data file to be placed on tape *
* *
*****************************************************************
This is an ASCII data file which will be copied off DSK from a
Tops-20 operating system onto an ANSI labeled tape at 1600bpi (for
this example on TU78 Drives). Next, this tape will be placed on a
TU78, which is connected on a Vax 11/780 and copy the data from tape
onto the Vax DSK.
************************* THE END *****************************
@COPY ASCII.TXT.1 (TO) TAPE1:*.*.* ,
@@? confirm with carriage return
or one of the following:
ASCII BINARY BYTE IMAGE
@@ASCII
@@
ASCII.TXT.1 => MT0:ASCII.TXT.1 [OK]
@REW TAPE1:
@DISMOUNT TAPE1:
[Tape dismounted, logical name TAPE1: deleted]
@logo
============= Following example is taken from a VAX/VMS system ==========
[Remote host is a VMS system]
VLNVAX: available and running v4.0
*****************************************************************
* *
* Next is a VMS SHOW COMMAND to get a status on the tape drive *
* ( For our example, our tapes drives are logicial defined as *
* MFA1 and MFA2 your site may have it defined differently.) *
* *
*****************************************************************
Page 3
$ SHOW DEVICE/FULL MFA
Magtape VLNVAX$MFA0:, device type TU78, is online, file-oriented device, error
logging is enabled.
Error count 0 Operations completed 0
Owner process "" Owner UIC [0,0]
Owner process ID 00000000 Dev Prot S:RWED,O:RWED,G:RWED,W:RWED
Reference count 0 Default buffer size 2048
Density 1600 Format Normal-11
Volume status: no-unload on dismount, beginning-of-tape, write-locked, odd pa
rity.
Magtape VLNVAX$MFA1:, device type TU78, is online, file-oriented device, error
logging is enabled.
Error count 19 Operations completed 68985
Owner process "" Owner UIC [0,0]
Owner process ID 00000000 Dev Prot S:RWED,O:RWED,G:RWED,W:RWED
Reference count 0 Default buffer size 2048
Density 1600 Format Normal-11
Volume status: no-unload on dismount, odd parity.
*********************************************************
* *
* Assign one of the tape drives to your process *
* (for this example we use MFA1 as our tape drive) *
* *
*********************************************************
$ ALLOCATE MFA1:
_MFA1: allocated
*********************************************************
* *
* Place the tape on the drive, hit the online button, *
* and issue the mount command to notify the system *
* that a tape is mounted to the drive.( For this e.g *
* we used the MOUNT command with the override switch *
* to avoid giving tape label names, and owner.) *
* *
*********************************************************
$ MOUNT MFA1:/OVERRIDE=(ID,OWNER)
TAPE1 mounted on _MFA1:
Page 4
*********************************************************
* *
* Below is the VMS copy command to restore the content *
* of the tape onto disk. *
* *
* Note: If you have several ascii files on the tape *
* you should use COPY command with /NOCONCATENATE *
* switch, because system default will concatenate all *
* input file specs to one output file. *
* (eg. COPY MFA1:*.*;*/NOCONCATENATE [GCHIN]*.*;* ) *
* *
*********************************************************
$ COPY MFA1:*.*;*
To: ASCII.TXT
MFA1:[]ASCII.TXT;1 copied to GODFATHER:[GCHIN]ASCII.TXT;1 (12 records)
$ty ascii.txt
*****************************************************************
* *
* This is the ASCII data file to be placed on tape *
* *
*****************************************************************
This is an ASCII data file which will be copied off DSK from a
Tops-20 operating system onto an ANSI labeled tape at 1600bpi (for
this example on TU78 Drives). Next, this tape will be placed on a
TU78, which is connected on a Vax 11/780 and copy the data from tape
onto the Vax DSK.
************************* THE END *****************************
$DISMOUNT MFA1:
$DEALLOCATE MFA1:
$
*****************************************************************
* *
* The following photo session is an example of (vise-versa) *
* copying ANSI ASCII data generated from a VAX/VMS system to *
* tape, and placing the data on tape onto a Tops-20 Operating *
* system by using the available system commands. *
* *
*****************************************************************
LINK FROM GCHIN, TTY 75
TOPS-20 Command processor 5.1(1767)
@host vlnvax
[Attempting a connection, connect OK]
Page 5
[Remote host is a VMS system]
[TYPE ^P to return to node KL2116]
VLNVAX available and waiting...
... and running VMS V4.0
*********************************************************
* *
* Issue the VMS SHOW command to get status of the tape *
* drive to see which one is available for use. *
* *
*********************************************************
$ SHOW DEVICE/FULL MFA
Magtape VLNVAX$MFA0:, device type TU78, is online, record-oriented device, file-
oriented device, error logging is enabled.
Error count 37 Operations completed 11797
Owner process "" Owner UIC [0,0]
Owner process ID 00000000 Dev Prot S:RWED,O:RWED,G:RWED,W:RWED
Reference count 0 Default buffer size 512
Density 6250 Format Normal-11
Volume status: no-unload on dismount, write-locked, odd parity.
Magtape VLNVAX$MFA1:, device type TU78, is online, file-oriented device, error
logging is enabled.
Error count 16 Operations completed 33611
Owner process "" Owner UIC [0,0]
Owner process ID 00000000 Dev Prot S:RWED,O:RWED,G:RWED,W:RWED
Reference count 0 Default buffer size 2048
Density 6250 Format Normal-11
Volume status: no-unload on dismount, write-locked, odd parity.
*****************************************************************
* *
* Mount a tape onto the drive, and assign it to your process. *
* (Doing another SHOW command to MFA you can see the OWNER *
* PROCESS ID equal to you process or username ) *
*****************************************************************
$ ALLOCATE MFA1:
_MFA1: allocated
*****************************************************************
* *
* Issue the INITIALIZE command to label the tape, and use the *
* override switch to avoid setting any protection to the tape *
* *
*****************************************************************
Page 6
$ INITIALIZE MFA1: VAXTAP/OVERRIDE=OWNER
$
*****************************************************************
* *
* Use the VMS MOUNT command to notify the system that a tape is *
* on the drive. Also use the override switch to avoid the *
* system from asking for a VOL ID of the tape, and log file *
* *
*****************************************************************
$ MOUNT MFA1:/OVERRIDE=(ID,OWNER)
VAXTAP mounted on _MFA1:
$ DIR ASCII.TXT
Directory GODFATHER:[GCHIN]
ASCII.TXT;1
Total of 1 file.
$ TY ASCII.TXT
GODFATHER:[GCHIN]ASCII.TXT;1
*****************************************************************
* *
* This is the ASCII data file to be placed on tape *
* *
*****************************************************************
This is an ASCII data file which will be copied off DSK from a
VAX/VMS operating system onto an ANSI labeled tape at 1600bpi (for
this example on TU78 Drives). Next, this tape will be placed on a
TU78, which is connected to a Tops-20 and copy the data from tape
onto the DSK.
************************* THE END *****************************
*****************************************
* *
* Below use the VMS COPY command *
* *
*****************************************
$ COPY ASCII.TXT;1
_To: MFA1:
GODFATHER:[GCHIN]ASCII.TXT;1 copied to MFA1:[]ASCII.TXT;1 (12 records)
****************************************************************
* *
* Use the VMS DIRECTORY command to see if the file is on tape. *
* *
*****************************************************************
Page 7
$ DIR MFA1:
Directory MFA1:[]
ASCII.TXT;1
Total of 1 file.
*****************************************************************
* *
* Below, use the DISMOUNT, and DEALLOCATE command to free the *
* drive. Also, by logging out the system it will automaticly *
* release the drive. *
* *
*****************************************************************
$DISMOUNT MFA1:
$DEALLOCATE MFA1:
$ LOGO
== Process of copying the file off tape and placing it on Tops-20 ==
*****************************************************************
* *
* Mount the tape on the drive, if you have wheel or operator *
* privileges you can find the status of the tape drives *
* (Below is a example of checking the status of the drive) *
* *
*****************************************************************
@
@ENA
$OPR
OPR>SHOW STATUS TAPE-DRIVE
OPR>
14:16:59 -- Tape Drive Status --
DRIVE STATE VOLID REQ# JOB# USER
----- ----- ------ ---- ---- ----
MTA1: Unloaded
MTA2: Loaded VAXTAP
OPR>EX
*****************************************************************
* *
* Issue the MOUNT Command with /LABEL-TYPE: ANSI *
*( NOTE: remove the write-ring or issue /WRITE-ENABLE switch) *
*****************************************************************
$MOUNT TAPE VAXTAP: /LABEL-TYPE:ANSI
Page 8
[Mount request VAXTAP queued, request #24]
[Tape set VAXTAP, volume VAXTAP mounted]
[VAXTAP: defined as MT0:]
*****************************************************************
* *
* Issue the COPY command to restore the file from tape onto *
* disk.( Below the file is restored to the connected directory) *
* *
*****************************************************************
@COPY VAXTAP:*.*.* (TO) *.*.-1
MT0:ASCII.TXT.1 => ASCII.TXT.1 [OK]
@TY ASCII.TXT.1
*****************************************************************
* *
* This is the ASCII data file to be placed on tape *
* *
*****************************************************************
This is an ASCII data file which will be copied off DSK from a
VAX/VMS operating system onto an ANSI labeled tape at 1600bpi (for
this example on TU78 Drives). Next, this tape will be placed on a
TU78, which is connected to a Tops-20 and copy the data from tape
onto the DSK.
************************* THE END *****************************
@DISMOUNT VAXTAP:
[Tape dismounted, logical name VAXTAP: deleted]
@LOGO
--------