Xen users - Jun 2010 - DRBD and HVM hosts

Hi All,

Debian Lenny, Xen 3.2.1

Has anyone got HVM to work with the drbd resource scripts? I''ve seen
some posts in the devel such as this;

http://lists.xensource.com/archives/html/xen-devel/2010-04/msg01608.html

Will this be incorporated or how can I change this in my setup?

Thanks!

Mark

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Hello Mark,
As far as I know, DRBD has no Xen integration for HVM.
Please refer to DRBD documentation:
http://www.drbd.org/users-guide-emb/s-xen-configure-domu.html

And I can confirm that this integration fails for HVM with Xen 3.2.1 in
Debian Lenny. Maybe it has been integrated in Xen 3.4 or 4 but I did not
test it.

Regards,
JB

On 02/06/2010 18:27, Mark Adams wrote:
> Hi All,
> 
> Debian Lenny, Xen 3.2.1
> 
> Has anyone got HVM to work with the drbd resource scripts? I''ve
seen
> some posts in the devel such as this;
> 
> http://lists.xensource.com/archives/html/xen-devel/2010-04/msg01608.html
> 
> Will this be incorporated or how can I change this in my setup?
> 
> Thanks!
> 
> Mark
> 
> _______________________________________________
> Xen-users mailing list
> Xen-users@lists.xensource.com
> http://lists.xensource.com/xen-users
> 


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> 
> Debian Lenny, Xen 3.2.1
> 
> Has anyone got HVM to work with the drbd resource scripts? I''ve
seen
> some posts in the devel such as this;
> 
>
http://lists.xensource.com/archives/html/xen-devel/2010-04/msg01608.html
> 
> Will this be incorporated or how can I change this in my setup?
> 
That was my patch. You could download the Lenny package sources and
apply the patch to that and it might work.

If you are not using multiple primary mode then you''ll also need a
sleep
in there as qemu races with the scripts and often the node is not yet
primary when qemu wants to open it.

A better patch would be to try for (say) 30 seconds to open the drbd
device, eg try open, sleep if failed then try again. An even better
patch would fix the race properly.

James

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