[Lustre-discuss] Compiling lustre 1.8.X on Ubuntu LTS 10.04

Bernd Schubert bernd.schubert at fastmail.fm
Tue May 4 13:11:23 PDT 2010


On Tuesday 04 May 2010, Ramiro Alba Queipo wrote:
> On Tue, 2010-05-04 at 18:58 +0200, Bernd Schubert wrote:
> > > Now a couple of questions:
> > >
> > > 1) I've compiled RedHat5  2.6.18-164.11.1 kernel using config from file
> > > config-2.6.18-164.11.1.el5_lustre.1.8.3 extracted from package
> > > kernel-2.6.18-164.11.1.el5_lustre.1.8.3.x86_64-ext4.rpm from Oracle
> > > server that says:
> > > Lustre-patched kernel for ext4(MDS/MGS/OSS Only)
> > >
> > > Is it the right one?
> >
> > I don't think there is a right or a wrong. For RHEL 5.4 kernels ldiskfs
> > is either based on ext3 or ext4. The ext3 based version is better tested
> > (with default options),  the  ext4 based version has more features (e.g.
> > 16TiB OST size support).
> 
> OK. But, can I use it both for servers and clients?

You don't need to patch your kernel for clients. Clients are not interested in 
ldiskfs. But of course, you can use a patched kernel on your clients as well. 
Just the other way around - a patchless client kernel does not work on servers 
yet.

Cheers,
Bernd



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