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Further reading ⇓

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Paper No 29: FILE TRANSFERS BETWEEN FR80 AND P400

H K F Yeung

23 August 1978

1. INTRODUCTION

This paper describes how to transfer files between the FR80 and the P400. It is expected a 9-track (800 bpi) tape is used for the transfers. Tape formats mentioned here refers to DISK DUMPER format as described in FR80 manuals. The discussions are divided into two sections (a) moving files from FR80 to P400 and (b) moving files from P400 to FR80. All files are assumed to be symbolic. At the time of writing, it is the user's responsibility to mount his own tape and it is expected that tape unit 1 is selected.

2. MOVING FILES FROM FR80 TO P400

There exists a utility program, the DISK DUMPER, for writing files to tapes in the format required. Any number of files can be dumped (restricted only by the size of a tape). To ensure that the blocking requirements are satisfied, users are advised to type the 'S1' command as soon as the DUMPER is loaded and must be prior to the actual dumpings.

To access the file-transferring program on P400, the following command is provided: 

$GSIN23>FR85JC

The file transferring program is an interactive program. It halts every time a file name is typed to allow users to issue an appropriate command. Currently, the following commands are available 

N: move to next file 
F: store file with name formed by concatenating directory name and file names 
   with semicolon and spaces removed. 
Q: quit

User will be warned if an illegal command is typed. The program stops if the command is 'Q' or when the end of a tape is reached.

3. MOVING FILES FROM P400 TO FR80

Once again, a P400 command is available and it is 

$GSIN23>MOVEJC

This command runs the program which dumps P400 files to tapes. After the command is typed, users are asked to type any number of file names subjected to the restriction that only 31 characters can be typed at any one time (including the file name separator which is a comma). In the example below, system responses are highlighted. 

            O.K. $GSIN23>MOVEJC 
FILE= AAA,BBB 
[ANY MORE FILE] : YES 
[TYPE NAME] : CCC,DDD,EEE 
[ANY MORE FILE] : NO

On the FR80 side, there is an utility program called 'TAPE DUMP RELOAD' which can be used to copy files from tape to disk.

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