Re: [Xen-users] Live migrate using DRBD

[Miles Fidelman <mfidelman@xxxxxxxxxxxxxxxx>]

Mark Adams wrote:
> On Sat, Jun 05, 2010 at 05:37:49AM +0700, Fajar A. Nugraha wrote:
>    
> > On Fri, Jun 4, 2010 at 11:06 PM, Mark Adams<mark@xxxxxxxxxxxxxxxxxx>  wrote:
> >      
> > > EDIT: I've located pygrub and will test the other scripts,
> > >
> > > Still just incase... Has anyone else got PVM's using DRBD with more than
> > > 1 disk live migrating on Debian Lenny with the default drbd scripts?
> > >        
> The scripts don't work well on my setup. It won't run paravirt hosts at
> all, and migrating hvm hosts doesnt work.
>
>    
Yes.  xm migrate --live seems to work just fine for me on Debian Lenny.

What DOESN'T work for me is live migrate under heartbeat control.  Using 
the Xen OCF resource with a basic configuration, all works fine: 
crm_resource --migrate takes down the resource on one node, brings it up 
on the specified node; taking down a node yields an automatic startup on 
the failover node.  On the other hand, setting allow_migrate to true 
(allowing for live migrate), results in failures whenever crm_resource 
--migrate is invoked.  Never did track this down (since my primary use 
is failover, I don't really care about live migration).
Miles

--
In theory, there is no difference between theory and practice.
In<fnord>  practice, there is.   .... Yogi Berra



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