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From: koning@koning.enet.dec.com (Paul Koning)
Newsgroups: comp.os.rsts
Subject: Re: Hardware for rsts/e
Message-ID: <23792@shlump.lkg.dec.com>
Date: 24 Jun 91 15:33:18 GMT
References: <1991Jun19.073719.5438@techbook.com>
Sender: news@shlump.lkg.dec.com
Reply-To: koning@koning.enet.dec.com
Organization: Digital Equipment Co., distributed systems architecture
Lines: 34


|>
|>   what is the minimum hardware needed to run rsts/e??

Needed, or supported?  For an answer about what's supported, read the SPD.

In a nutshell, RSTS/E requires memory management, a minimum of 124 KW of
memory, and EIS (Mul/Div instructions).  You need enough disk space for
the basic system files plus whatever utilities you decide to have.  If you
cut extensively it can fit on quite a small disk (a couple of thousand
blocks) though the standard installation procedure isn't built for that
and expects more (again, see the SPD).

|>   how many users can reasonably be supported??

Depends on what your standards are.  When I was in college we ran up to
14 users on an 11/20.  Response time was, to put it mildly, "rather slow".

If you have a 22-bit processor and a decent amount of memory (half a meg,
perhaps) then 64 users is certainly doable.  Whether it's fast enough
is a matter of taste.

|>   and finally, what pdp-11 hardware can rsts/e take advantage of??
|>   (or, put another way, what is the maximum amount of memory the system
|>can manage, disk space, etc. etc.)

All the memory, all the disk space (note that some of the largest disks
work only with very recent versions, check SPD for details).  Most any other
peripherals, except that there is some exotic stuff that only RSX understands.

|>-- 
|>fzsitvay@techbook.COM - but don't quote me on that....

	paul