[Beowulf] need for an advice on nfs and diskless clients

Peter St. John peter.st.john at gmail.com
Wed Feb 20 16:24:56 EST 2008


Maxime,
Would it be feasible to use "ln" to create symbolic links to populate
/tftproot/192.168.1.N, for each node N,  from say /tftproot/generic ?
Peter

On Wed, Feb 20, 2008 at 5:26 AM, Maxime Kinet <mkinet at ulb.ac.be> wrote:

> Hi,
> I'm setting up  a cluster, made of diskless workstations, booting through
> NFS. For that purpose I created a copy of the node's filesystem in a
> /tftpboot directory. That is, I have a full filesytem for each single node :
> /tftpboot/192.168.1.1, /tftpboot/192.168.1.2, /tftpboot/192.168.1.3, etc.
>
> I know that there are several different options to make several clients
> mounting their filesystems, and that this one might not be the most
> efficient one, but I choosed that one just because I knew already how to do
> it. Now everything works fine, except that I would like to spare some
> diskspace on the master partition. Since each filesystem is around 500 Mb, I
> quickly reach more than 10Gb just for the /tftpboot directory.
>
> A quick solution I founded is to mount the largests directory (which are
> the same for each node) of the / (namely /lib and /var) from a separate
> common directory. Could this cause some problem in the way the node's are
> working? Is there any other easy/fast way to reduce the amount of data
> contained in the /tftpboot/192.168.1.* directories?
>
> I also heard about ClusterNFS which would do exactly what I need, but then
> I would have to start everything from the beggining and I want everything to
> work as soon as possible.
>
> Thanks a lot for answers/advices,
>
>  ------------------
> Maxime Kinet
> Université Libre de Bruxelles
> Physique Statistique et Plasmas, CP 231
> Campus Plaine - Boulevard du Triomphe,
> 1050 Bruxelles.
>
>
>
>
>
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