[679] in Info-AFS_Redistribution
Re: can I install /usr/afs/... in /var/afs/...????
daemon@ATHENA.MIT.EDU (Stephen Kneuper)
Mon Mar 23 22:54:55 1992
From: kneuper@hermes.chpc.utexas.edu (Stephen Kneuper)
To: ccprl@xdm001.ccc.cranfield.ac.uk (Peter Lister Cranfield Computer Centre)
Date: Mon, 23 Mar 92 21:01:54 CST
Cc: info-afs@transarc.com (AFS email list),
In-Reply-To: <9203231547.AA08065@xdm001>; from "Peter Lister, Cranfield Computer Centre" at Mar 23, 92 3:47 pm
>
> I tentatively suggested a few weeks ago to Dan Nydick that putting /usr onto
> AFS, and the problems / benefits found by different sites would make a
> good topic for discussion at AFSUG. I'm intending to compile a report
> on what we've done here. Just to gauge reaction, how many info-afs
> readers would be interested
> in this? If you are, reply direct to me and I'll summarise to the list.
>
> Peter Lister p.lister@cranfield.ac.uk
> Computer Centre,
> Cranfield Institute of Technology, Voice: +44 234 750111 ext 3157
> Cranfield, Bedfordshire MK43 0AL England Fax: +44 234 750875
>
Thanks Peter and all the rest of you AFS'ers for your answers to my
query ("can I install /usr/afs/... in /var/afs/...????").
As everyone has commented, it works well. The chief advantage is that
our AFS server can export the AFS /usr partition out via NFS
(readonly) and the clients can mount the /usr instead of having to use
disk space to duplicate it. Our /usr under SunOS 4.1.2 is about 44
megabytes used (partition is 122640 sectors).
At our site the /usr was made by taking a standard SunOS /usr and
moving parts of it into AFS. The parts moved were directories that
were not referenced at boot time; we left symbolic links in thier
stead. A list of things moved...:
/usr/lib/vfont -> /afs/ThisCell/@sys/usr/lib/vfont
/usr/kvm/sys -> /afs/ThisCell/@sys/usr/kvm/sys
/usr/man -> /afs/ThisCell/@sys/usr/man
/usr/afsws -> /afs/ThisCell/@sys/usr/afsws
/usr/openwin -> /afs/ThisCell/@sys/usr/openwin
/usr/diag -> /afs/ThisCell/@sys/usr/diag
/usr/include -> /afs/ThisCell/@sys/usr/include
/usr/old -> /afs/ThisCell/@sys/usr/old
/usr/vice -> /var/vice
The result is a small /usr that has enough functionality that the
machine can be used even if AFS service is not available. It can boot
off its' own disk and participate on the network. Of course, its'
functionality is impacted due to the lack of "man" pages, windowing
software and the like. I assume that most sites do it this way... if
your site does it different I'd like to hear from you! I'll
summarize, of course.
Back to the question: I tend to avoid moving /usr into AFS but it
could be done... I'm not gonna drain that swamp (chase the problems
that come up)!!
--
Steve Kneuper kneuper@chpc.utexas.edu - Internet
University of Texas System kneuper@uthermes - BITNET
Center for High Performance Computing (512)471-2472
Mail Code 78700 (512)471-2445 (fax)
10100 Burnet Road
Austin TX 78712
