Hi, after i've read this post http://article.gmane.org/gmane.comp.emulators.xen.user/33157/match=re+xen+drbd I've given up on xen and drbd disks for now, and am using phy:, but you'll have to give it drbd device not the volume disk = [ "phy:/dev/drbd14,xvda,w" ] Unfortunately, that means that you'll have to handle setting drbd devices primary/secondary yourself. I've written a wrapper script around drbdadm+xm and it has been working more or less ok. That also means no live migration since drbd device needs to change state sometime mid-migration, but save/move/restore has been working ok for me with really minimal downtimes. There is also a primary/primary setup with newer drbd but it was awfully unstable when i was testing it a few moths ago, most of the time it was crashing and taking down the complete cluster with it. regards, Alexandre Biancalana wrote: > Hi list, > > I installed two new servers to be our virtualization HA. This servers > have CentOS 5.2, Xen 3.0.3, Drbd 8.2.6. The setup is ok, lvm drbd > resources sincronizing, Guest VM running without any problem. > > My only doubt is that I can only use drbd resources inside guest vms > when I specify the disk resource in vms config like this: > > disk = ['phy:/dev/VolGroup00/vappprtem01,hda,w' ] > > if I specify de disk like: > > disk = [drbd:vappprtem01,hda,w' ] > > The Guest VM found the disk but this appear with zero size. > > As far what I read the second way is the correct to live migration > work without any race condiction... > > This link say that centos has a problem with block-drbd script > provided by drbd, is anybody aware of that ? > > http://lists.xensource.com/archives/html/xen-users/2008-08/msg00176.html > > Any hints ? > > Best Regards, > _______________________________________________ > CentOS-virt mailing list > CentOS-virt at centos.org > http://lists.centos.org/mailman/listinfo/centos-virt > -- Aleksandar Ivanisevic Support Manager 2e Systems Tel: +49 - 6196 - 950 58 14 Fax: +49 - 6196 - 950 58 94 E-mail: Aleksandar.Ivanisevic at 2e-systems.com Address: 2e Systems GmbH, Im Taubengrund 12, D-65451 Kelsterbach Company registration: Amtsgericht Darmstadt (Germany), HRB 84110 Directors: Philip Douglas, Alistair Forbes http://www.2e-systems.com - making your business fly!