[CentOS-virt] xen+drbd Question

Tue Aug 26 16:10:56 UTC 2008
Ross S. W. Walker <RWalker at medallion.com>

Alexandre Biancalana wrote:
> On 8/26/08, Aleksandar Ivanisevic 
> <aleksandar.ivanisevic at 2e-systems.com> wrote:
> > Ross S. W. Walker wrote:
> >
> > > Just specify the drbd devices directly as:
> > >
> > > disk = ['phy:/dev/drbd0,hda,w' ]
> > >
> > > And you should be ok. There is no need to use the scripts.
> > >
> >
> >  You actually got it working stably, live migration and 
> all? which kernel,
> > xen, drbd if I may ask?
> 
> What about that ?
> 
> http://fghaas.wordpress.com/2007/09/03/drbd-806-brings-full-li
> ve-migration-for-xen-on-drbd/

Are you running Xen 3.2 from xen.org?

If not then specify your devices as the top portion of the blog
talks about, then config drbd with the allow-two-primaries as
the bottom talks about, and ignore the middle.

If you upgrade to xen.org release of Xen then you can use the
block-drbd script to specify by drbd resource name instead of
device, but that's just fluff in stuff, and doesn't have
anything to do with the ability to live migrate which is all
handled by the allow-two-primaries option.

-Ross

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