Re: [Xen-users] Live migrate using DRBD

[Mark Adams <mark@xxxxxxxxxxxxxxxxxx>]

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?

On Fri, Jun 04, 2010 at 05:04:08PM +0100, Mark Adams wrote:
> Edit:
> 
> In terms of using this replacement *script*....
> 
> On Fri, Jun 04, 2010 at 05:01:01PM +0100, Mark Adams wrote:
> > 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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Mark Adams
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