Xen users - Jan 2008 - RHEL5 Xen failover cluster - iSCSI with HP AiO400 for cluster file system

Hi,

We''re looking at setting up two x86_64 Red Hat Enterprise Linux 5
(Advanced
Platform) servers as a 2 node Xen failover cluster. We''re considering
trying
to use an HP StorageWorks AiO400 SAN box to host the GFS cluster file system
using iSCSI. The HP AiO400 is a Windows Storage Server 2003 based product
and has iSCSI support for Linux. We''re thinking that we could place the
AiO400 on a separate dedicated gigabit ethernet network with the two server
nodes so as to provide sufficient bandwidth for the cluster file system.

I was just wondering if anyone has had any experience with a setup at all
similar to this, and whether anyone thinks it sounds like a feasible Xen
failover cluster solution?

Thanks.

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gnujon wrote:
> Hi,
[...]
> I was just wondering if anyone has had any experience with a setup at all
> similar to this, and whether anyone thinks it sounds like a feasible Xen
> failover cluster solution?
in theory it''s not (or should not be) something strictly related to Xen
(the use you''re going to have of your cluster)
I''ve managed anyway more than one cluster built with RHEL (4) and GFS 
... generally for mail purposes

we were using optical fibers and not ethernet to reach the storage, but 
it went good

gfs requires attention and a good tuning, the locker we were using were 
suffering some little problems when the delay in completing the 
operation was too high but there were already the fixes on the redhat''s
repository and anyway it was the old GFS not the version 2

I would be careful anyway in having a mixed environment (w2k3/rhel) for 
a so specific task, especially in a so critical point of the system (the 
storage)
-- 
Giulio Fidente
"What we have done for ourselves alone dies with us;
  what we have done for others and the world remains."

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>I was just wondering if anyone has had any experience with a setup at
> all
>similar to this, and whether anyone thinks it sounds like a feasible
> Xen
>failover cluster solution?

I am currently testing the same(CentOS 5.1 + XEN + Netapp backend with iSCSI).
The only document I have seen is the following,

http://www.redhatmagazine.com/2007/08/23/automated-failover-and-recovery-of-virtualized-guests-in-advanced-platform/

Its not perfect or comprehensive. But its the best starting point you have IMHO.

Regards,
Nasir


 
       
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