Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!tut.cis.ohio-state.edu!ucbvax!hplabs!hpfcso!hpfcdc!jd
From: jd@hpfcdc.HP.COM (Jim Darling)
Newsgroups: comp.sys.hp
Subject: Re: HP-UX 7.0 heterogenous cluster question
Message-ID: <5570387@hpfcdc.HP.COM>
Date: 14 Mar 90 16:56:56 GMT
References: <1434@kuling.UUCP>
Organization: HP Ft. Collins, Co.
Lines: 30


> While reading the manual I found to my surprise that when using an 800
> as server for 300:s, you must have the root partition on section 13
> of your primary disk and only three partitions (boot, swap and / I presume).
> If not, reinstall 7.0.

I wasn't responsible for writing this, but the reason is to ensure that
there is enough disk space in all partitions (root and /usr are the two
most likely to have problems) when installing the s300 version of HP-UX.

> What I wanted to do was set up the 835 as a cluster server, install the
> 300 software my self, setting up CDF:s manually, and add clients.
> This will save me a lot of time since I don't have to move filesystems
> about and repartition disks. Needless to say I don't have the root partition
> on section 13.

VERY RISKY!  You may think that it may save you time, but you run a
(great?) risk of spending more time getting the cdfs right and potentially
having problems getting help since you didn't use the supported processes.
The definitions of what cdfs should exist and how they get created and how
update should load files onto a cluster server are contained in files with
names of the form "/system/<fileset-name>/CDFinfo".  If you don't use 
/etc/update to load the s300 OS then you may run into big time problems of
overwriting s800 specific files with the s300 versions, etc.

I sympathize with your situation, but the safest route is to go by the book
(I know we could have done better, guess all I can do is apologize).

							Jim Darling
							an engineer at HP