Re: [Xen-users] Live migrate using DRBD

[Mark Adams <mark@xxxxxxxxxxxxxxxxxx>]

Robert is right, if I drop the swap disk out of the config the live
migration works correctly (only 1 disk).

In terms of using this replacement disk, has anyone done this on Debian
lenny? I can't seem to locate pygrub.

Just incase... Has anyone else got PVM's using DRBD with more than 1
disk live migrating on Debian Lenny?


On Fri, Jun 04, 2010 at 03:00:39PM +0100, Robert Dunkley wrote:
> You could try the alternative DRBD transfer scripts here:
> http://www.antibozo.net/xen/qemu-dm.drbd
> 
> I had a similar issues and they fixed it. They work for HVM too. PVM
> have issues when more than one hard disk is specified in the config
> file.
> 
> Rob
> 
> -----Original Message-----
> From: xen-users-bounces@xxxxxxxxxxxxxxxxxxx
> [mailto:xen-users-bounces@xxxxxxxxxxxxxxxxxxx] On Behalf Of Mark Adams
> Sent: 04 June 2010 14:49
> To: Miles Fidelman
> Cc: xen-users@xxxxxxxxxxxxxxxxxxx
> Subject: Re: [Xen-users] Live migrate using DRBD
> 
> It's worth noting that if I do a normal migrate it works correctly.
> 
> On Fri, Jun 04, 2010 at 02:42:55PM +0100, Mark Adams wrote:
> > Does anyone have any ideas about this or suggestions to test? 
> > 
> > Best Regards,
> > Mark
> > 
> > On Thu, Jun 03, 2010 at 02:50:34PM +0100, Mark Adams wrote:
> > > Yea I've got that as follows;
> > > 
> > >   net {
> > >   allow-two-primaries;
> > >   after-sb-0pri discard-zero-changes;
> > >   after-sb-1pri discard-secondary;
> > >   }
> > > 
> > > It all migrates correctly, it just won't destroy the original host
> > > correctly!
> > > 
> > > On Thu, Jun 03, 2010 at 08:58:55AM -0400, Miles Fidelman wrote:
> > > > Mark Adams wrote:
> > > >> However if I live migrate the domain, it successfully transfers
> the
> > > >> domain across and is running on the other node, but will stay in
> the
> > > >> suspended "migrating-domain" on the first node. The log seems to
> be
> > > >> paused at the following:
> > > >>
> > > >>    
> > > > have you enabled "allow-two-primaries" in your DRBD config file?
> > > >
> > > > see:
> > > > http://www.drbd.org/users-guide-emb/ch-xen.html
> > > >
> > > > -- 
> > > > In theory, there is no difference between theory and practice.
> > > > In<fnord>  practice, there is.   .... Yogi Berra
> > > >
> > > >
> > > >
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