Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!wuarchive!zaphod.mps.ohio-state.edu!tut.cis.ohio-state.edu!ucbvax!hplabs!hp-pcd!hpcvlx!tomg
From: tomg@hpcvlx.cv.hp.com (Thomas J. Gilg)
Newsgroups: comp.sys.hp
Subject: Re: HP-UX 7.0 heterogenous cluster question
Message-ID: <101950106@hpcvlx.cv.hp.com>
Date: 14 Mar 90 20:35:27 GMT
References: <1434@kuling.UUCP>
Organization: Fly Fishermans Anonymous
Lines: 44


> Why is this? It doesn't make sense. Is it only so that the root partition
> is big enough to hold the 300 OS as well (13 is one of the biggest sections),
> or is it something more to it? I can't see any logical reason behind it.
> The manual doesn't explain anything, it's the "Don't ask, do as you are told"
> attitude.

You can arrange the disk(s) any way you want, as long as both the s300 and
s800 bits fit.  Here's a chunk of my s845 mixed cluster checklist:

##  Physical Layout of primary disks
##
##  Eagle 1:                              Eagle 2:
##     c0d0s6   -  /boot                     c1d0s6   -  unused    @   2 Megs
##     c0d0s15  -  /swap  @  48 Meg          c1d0s15  -  /addswap  @  48 Megs
##     c0d0s11  -  /      @ 483 Megs         c1d0s13  -  /users    @ 507 Megs
##     c0d0s14  -  /tmp   @  24 Megs


> 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.

You won't save any time doing CDF's manually to avoid repartitioning.  Let
/etc/sam turn your system into a mixed cluster.  Once you try to install on
a non-conforming partition scheme, you'll just be a slave to it for ever more.
Take the one time hit up front, and be done with it.  Trying to second guess
what should and shouldn't be a CDF will take far far more time than moving 
filesystems.  /etc alone could take a day or so, and thats if you understand
what each file does.

> If anybody knows anything about this or has experience of heterogeous clusters
> please let me know if the world will end if I ignore the section 13 thing.

Nothing is special about partition 13.  Note that I use partition 11.
With an average s300/s800 fileset download, it takes about 405 Megs.

> 	Jan D.
> ----------

Thomas Gilg
tomg@cv.hp.com