Re: [xcat-user] xCAT+KVM on SLES 11 management node?

[Douglas M. <dg...@us...>]

We are using xCAT with SLES11.1 x86 mgmt node (we have 4 clusters, one of
which is on 2.5, the other 3 still on 2.4.3) we use it to manage KVM, ppc,
and x86_64 h/w (still working on getting AIX into same cluster).  It turns
out that, for us at least, x86 mgmt node can install and mange all 3 types
of SLES builds w/o service nodes required.  Also, the statelite cookbook
doesn't have sles11 x86, but this also works.  Generally it's all close to
the docs for us, with the following delta's:

using sles tftpd not atftpd-xcat rpm
edit /opt/xcat/lib/perl/xCAT_plugin/sles.pm and locate install=http and
autoyast=http change http to nfs ## this is strictly perf, http works, but
takes ~50% longer to install vs nfs
zypper install openslp-xcat-<version>.x86_64.rpm ## for some reason this
didn't install with the rest of xCAT, we had to do it separately
copied /opt/xcat/share/xcat/install/sles/xen.tmpl to kvm.tmpl and changed
the packages to be kvm based

That's pretty much it, the rest follows std mgmt build and sles11 xcat
packages and deps, the included sqllite and MySQL rpms both install and
work w/o a problem.

We found the same issue with Sys-Virt and sles libvirt, and had to go go
back to 0.2.1 sys-virt to get it to work w/o changing sles libvirt package,
at which point it seems to work fine.

Note also that we use SAN/LVM for KVM storage (or, as Egan puts it, old
school storage for rich kids) I haven't tried iSCSI or NFS storage points.

I don't have any publically available documentation (and my internal ones
are a mess) but other than what I posted above, we pretty much followed
xCAT docs.  If there's something specific I can try to answer, will be more
than willing....

_________________________________
Douglas Myers,
IBM Special Events
_________________________________
"It's not an opportunity if it doesn't scare you a little bit"




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  |John Griffin-Wiesner <jo...@ms...>                                                                                                     |
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  |xca...@li...                                                                                                               |
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  |11/29/2010 12:36 PM                                                                                                                           |
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  |[xcat-user] xCAT+KVM on SLES 11 management node?                                                                                              |
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I'm looking at using xCAT (2.5) and KVM on SLES 11.1, preferably
on both the management node and the kvmhost.  Is anyone doing
this?

Both the document here
  http://sourceforge.net/apps/mediawiki/xcat/index.php?title=KVM+
and the xCAT support for KVM in general seem to be for redhat,
not SLE.  In attempting to set up a management node it looks
like I am going to need to install perl-Sys-Virt from CPAN,
which in turn is going to need a newer version of libvirt than
comes with SLES11.1.  And I start down the rabbit-hole of
unsupportability (word?).

Is there any doc's for KVM on SLE, sles-kvm templates, etc.?

Thanks for any help.

--
John Griffin-Wiesner
HPC Systems Administrator
Minnesota Supercomputing Institute
http://www.msi.umn.edu
jo...@ms...

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