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From: collins@nvpna1.UUCP (Donie Collins 44091)
Newsgroups: comp.sys.apollo
Subject: Re: Updating Large Rings
Message-ID: <262@nvpna1.UUCP>
Date: Thu, 1-Oct-87 08:58:08 EDT
Article-I.D.: nvpna1.262
Posted: Thu Oct  1 08:58:08 1987
Date-Received: Mon, 5-Oct-87 02:53:31 EDT
References: <261@nvpna1.UUCP>
Organization: Philips Research Labs, Eindhoven
Lines: 28
Keywords: installation of new OS releases

I have received a few helpful messages about my first posting. The
general idea is to build a master copy and start multiple installations
from there.  This is ok for a small net, but how many simultaneous
installations can one hope to monitor without making mistakes ? Then
again how many simultaneous installations can the net handle before
performance drops ? No-one has mentioned sr10, when we have to invol
ALL the disks.

I brought this point up at a recent meeting with
some people from various Apollo offices in Europe (England, France and The
Netherlands) and they finally agreed that this was a weak point in their
setup.

Something else that annoys me is the fact that it is impossible to keep
a homogenous network. Each time Apollo releases a new piece of hardware
we get a new version of Aegis to go with it.

Our net has grown from 4 to 120 nodes in the last 16 months and in that
time we have received 9.2.3, 9.2.5+, 9.2.6, 9.2.7, 9.5.1, 9.6. Now
I hear we need 9.6.1 for the DN4000 and that 9.7 will be released in
Europe sometime around January '88. How do we keep up ??
As I say I've tried to talk to Apollo about this, but all I get is
another presentation on NCS !!!
-- 
Donal O'Coileain.    Go n-eirigh an bothar leat

"I believe in the bells of the Christchurch - Ringing out for this land
 I believe in the powers that be - But they won't overpower me" A Celebration