Xen users - Jan 2009 - virtualization on top of Red Hat cluster

We would like to find out if there are other folks attempting to do what 
we are trying to do.  We are having all kinds of problems.

We are trying to set up an 8 node cluster and run a number of virtual 
machines on top of this cluster.  The boxes are running Red Hat 5 and we 
are using Xen.

Before going into the actual issues we are running into, I thought we 
should first find out if there are others who are doing this, or 
attempting to do this.

This includes a separate virtual server for the following services: 
squid, ldap, mail server, dns, samba, email and a handful of 
Xservers/application servers.

The specific hardware includes:

8 Dell 19150 nodes w/ rh5.2 xen
Each node has 32GB of ram and 8 cores (xeon 2.66)

EMC San CX-310
2 Brocade 5000 fibre switches

Any feedback from anyone attempting or currently running a similar 
solution (virtualization on top of cluster) would be greatly appreciated.

-- 
Until later, Geoffrey

Those who would give up essential Liberty, to purchase a little
temporary Safety, deserve neither Liberty nor Safety.
  - Benjamin Franklin

_______________________________________________
Xen-users mailing list
Xen-users@lists.xensource.com
http://lists.xensource.com/xen-users

El Viernes 23 Enero 2009, Geoffrey escribió:
> We would like to find out if there are other folks attempting to do what
> we are trying to do.  We are having all kinds of problems.
>
> We are trying to set up an 8 node cluster and run a number of virtual
> machines on top of this cluster.  The boxes are running Red Hat 5 and we
> are using Xen.
>
> Before going into the actual issues we are running into, I thought we
> should first find out if there are others who are doing this, or
> attempting to do this.
>
> This includes a separate virtual server for the following services:
> squid, ldap, mail server, dns, samba, email and a handful of
> Xservers/application servers.
>
> The specific hardware includes:
>
> 8 Dell 19150 nodes w/ rh5.2 xen
> Each node has 32GB of ram and 8 cores (xeon 2.66)
>
> EMC San CX-310
> 2 Brocade 5000 fibre switches
>
> Any feedback from anyone attempting or currently running a similar
> solution (virtualization on top of cluster) would be greatly appreciated.
Well, I''m working on a similar setup:
3 node cluster with a couple of HP DL360''s + a Sun Fire X4100 M2 + Sun 
StorageTek 6140 + 2 Brocade switches.

All of the nodes run CentOS 5.2 + Xen 3.3.0 from Gitco repos.

Xen and the cluster are working fine, except for a couple of things:

- Windows VMs with GPLPV drivers don''t migrate (live or otherwise)
- I''m using ILO / IPMI fencing, suboptimal at best
- For some reason, luci (running on a seperate machine) didn''t detect
my hosts
as xen enabled, so I had to hack luci

(luci is RedHat Cluster suite''s web GUI for administering the cluster)

What is exactly your problem?
And feel free to contact me off-list if it''s off-topic :)

Best regards,
-- 
Ricardo J. Barberis 
Senior SysAdmin - I+D 
Dattatec.com :: Soluciones de Web Hosting 
Su Hosting hecho Simple..! 

_______________________________________________
Xen-users mailing list
Xen-users@lists.xensource.com
http://lists.xensource.com/xen-users

Ricardo J. Barberis wrote:
> What is exactly your problem?
> And feel free to contact me off-list if it''s off-topic :)
I appreciate everyone''s input thus far.  We have now discovered that we
had a couple of typo''s in some configuration files.  After correcting 
these, our subsequent testing has been successful.

Thanks for all the response, sorry for the wasted bandwidth.

-- 
Until later, Geoffrey

Those who would give up essential Liberty, to purchase a little
temporary Safety, deserve neither Liberty nor Safety.
  - Benjamin Franklin

_______________________________________________
Xen-users mailing list
Xen-users@lists.xensource.com
http://lists.xensource.com/xen-users

On Tue, Jan 27, 2009 at 1:17 AM, Ricardo J. Barberis
<ricardo.barberis@dattatec.com> wrote:
>
> Xen and the cluster are working fine, except for a couple of things:
>
> - Windows VMs with GPLPV drivers don''t migrate (live or otherwise)
Which GPLPV version? last time I check 0.9.12-pre13 on RH''s stock Xen
can live-migrate just fine.

Regards,

Fajar

_______________________________________________
Xen-users mailing list
Xen-users@lists.xensource.com
http://lists.xensource.com/xen-users

El Martes 27 Enero 2009, Geoffrey escribió:
> Ricardo J. Barberis wrote:
> > What is exactly your problem?
> > And feel free to contact me off-list if it''s off-topic :)
>
> I appreciate everyone''s input thus far.  We have now discovered
that we
> had a couple of typo''s in some configuration files.  After
correcting
> these, our subsequent testing has been successful.
Glad you solved it.
> Thanks for all the response, sorry for the wasted bandwidth.
No problem :)

Cheers,
-- 
Ricardo J. Barberis 
Senior SysAdmin - I+D 
Dattatec.com :: Soluciones de Web Hosting 
Su Hosting hecho Simple..! 

_______________________________________________
Xen-users mailing list
Xen-users@lists.xensource.com
http://lists.xensource.com/xen-users

El Martes 27 Enero 2009, Fajar A. Nugraha escribió:
> On Tue, Jan 27, 2009 at 1:17 AM, Ricardo J. Barberis
>
> <ricardo.barberis@dattatec.com> wrote:
> > Xen and the cluster are working fine, except for a couple of things:
> >
> > - Windows VMs with GPLPV drivers don''t migrate (live or
otherwise)
>
> Which GPLPV version? last time I check 0.9.12-pre13 on RH''s stock
Xen
> can live-migrate just fine.
We''re using 0.9.11 on Windows 2003 Server R2 Standard Edition with SP2.

There''s another thread with subject "Standard VM live migration OK
but Windows
GPLPV VM livemigration broken" where I first posted, but didn''t
mention thst
our Widnows servers are R2, and now I think I read about some problems 
between that release and GPLPV drivers...
> Regards,
>
> Fajar
Cheers,
-- 
Ricardo J. Barberis 
Senior SysAdmin - I+D 
Dattatec.com :: Soluciones de Web Hosting 
Su Hosting hecho Simple..! 

_______________________________________________
Xen-users mailing list
Xen-users@lists.xensource.com
http://lists.xensource.com/xen-users