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From: mcb@ncis.tis.llnl.gov (Michael C. Berch)
Newsgroups: news.software.b,news.admin
Subject: Re: How can I remain calm?
Message-ID: <547@ncis.tis.llnl.gov>
Date: 16 Oct 89 20:30:29 GMT
References: <1989Oct11.211031.10051@ee.rochester.edu> <1989Oct11.215444.11983@rpi.edu> <35575@apple.Apple.COM> <1989Oct11.235318.23465@brutus.cs.uiuc.edu> <526@ncis.tis.llnl.gov> <1989Oct13.125402.17356@brutus.cs.uiuc.edu>
Organization: Postmodern Consulting, Pleasanton CA USA
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[Re: what happens when you send out a global sendsys...]

Thanks to John Coolidge for pointing out what I *did* miss in the
original calculation:  the size of the (expanding) mail header.   That
indeed could well add up to 1K by itself for a site a couple of hops
off the Internet.  I'd also accept the 8,000 sites vs. 7,500 sites
estimate, though I think we're both speculating.  But I really think
that 1K is probably a good average sys file, since for every site that
has 5-10 feeds there are several that have only 1 or 2, which might
result in a 400-500 byte sys file (a hundred-char line for each feed,
plus a line of contact info per site, plus a couple of
lines of comments).  So then we get

	8,000 * 2048 = 16,384,000 ~= 16.4 MB

You would hope that wouldn't blow too many mail spool disks, but perhaps
so.  The real squeeze, the one I forgot since we do not run UUCP
on our news host, is the space required for pass-through mail.

--
Michael C. Berch  
mcb@tis.llnl.gov / uunet!tis.llnl.gov!mcb