[Info-vax] RMS internals?

[Hein, Nashua NH]

On Aug 7, 11:06 am, Malcolm Dunnett <noth... at spammers.are.scum> wrote:
> Howard S Shubs wrote:
> > Anyone know where I can get documentation on this?  I've tried HP, and
> > they've not gotten back to me.

I thought I missed the original question. On reply to the comp.os.vms
branch I noticed it was posted in comp.sys.dec first, bit that this
was the whole question!
>From subsequent replies it appears Howard is mostly(only?) interested
in sequential files, and has it mostly figured out. It ain't rocket
science!.

Later Howard wrote >>Given the link sent earlier, I'm a little
concerned about other >>possible  implementations of VARIABLE records.

- The record length words are word aligned, so there may be round-up
bytes (nice place to store a secret message :-)
- There is an MSB variable lenght flavor with the lenght word bytes
swapped. Created to support certain CD's. Never used really.
- Guess you should take care of VFC records as well, and notably
decide whether to interpret PRN/VFC data or pass binary

Malcomn> Somewhere around here I have a document which describes the
RMS formats.
> It predates the indexed file compression stuff but other than that it's
> still relevant.

I have something like that  somewhere as well, but can not readily
find it.
Mine was written by Tony Boyer (Bower?) a guy from the UK who worked
for Digital Education Services back in the 80's. Runoff, A4. I'll try
to find it.

Richard Gilbert wrote>> Try "VMS File System Internals" by Kirby
McCoy, Digital Press 1990.

No RMS in there. But McCoy was tasked to write up RMS internals and
did so (DEC Document) but only made it to a single, albeit critical,
chapter describing indexed file with compression and all. I have that,
but only in hard-copy, pre-edits, pre-publish. I'll consider scanning
that in but it is a 'light' printout.

Hope this helps some.
Send Email fro details.
Hein.