[Info-vax] RMS internals?

[glen herrmannsfeldt]

In comp.os.vms Bob Koehler <koehler at eisner.nospam.encompasserve.org> wrote:
< In article <h5sdqe$bvq$3 at naig.caltech.edu>, glen herrmannsfeldt <gah at ugcs.caltech.edu> writes:
 
<> I remember reading EBCDIC tapes on the PDP-10, and then VAX.
<> Finally after some time I managed to convince OS/VS2 to write
<> an AL (ANSI label) tape with ASCII data, just like VAX/VMS liked.

<   I'm not sure what OS we were running on our 360/75, but when I
<   told it to generate AL tapes it put an EOV label at the end which
<   convinced VMS 3.x that there was another tape to follow.

I don't remember that problem.  Well, it would have been early 1980,
so maybe before VMS 3.x.  The problems I remember were with ASP
(what became JES3) not recognizing AL tapes.  The solution which
someone else found for me was deferred mounting.  

<   But if I made the tape on VMS and told the 360 it was AL, it read
<   it fine.

I probably did some tapes that direction, but mostly the other way.

-- glen