[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-users] Booting Xen domU from DRBD 8.2
On Mon, Oct 13, 2008 at 4:52 PM, Paras pradhan <pradhanparas@xxxxxxxxx> wrote: > > > On Thu, Oct 9, 2008 at 2:57 PM, Federico Fanton <federico@xxxxxxxxxxxx> > wrote: >> >> Hi everyone! >> I'm trying to setup live migration of a paravirtualized Xen domU between >> two identical machines (Dell PowerEdge T105) running CentOS 5.2 x86_64 >> I followed the guide at >> http://www.asplund.nu/xencluster/xen-cluster-howto.html, even if it is for >> Ubuntu, because I couldn't find a recent one for CentOS :/ >> >> Right now I have the domU running on a node on top of LVM, and drbd is >> mirroring the lvm devices between the two nodes.. >> The next step should be to configure the domU to use drbd >> (http://www.asplund.nu/xencluster/xen-cluster-howto.html#DomU drbd config), >> but I can't figure out how to tell virt-manager/virsh to use the drbd >> devices.. >> >> Am I going the wrong way? Should I setup DRBD first and _then_ install the >> domU maybe? (the guide goes the other way round) >> Should I ditch pygrub and boot the domU directly from its kernel/initrd? > > Yes. first setup drbd which will result /dev/drbd0, drbd1,..... and install > guests there. > > Paras. Hi Federico, Great to see people using my guide. ;) Unless something has changed lately, it is not possibly to run pygrub when using DRBD. A possible solution might be this: http://www.antibozo.net/xen/qemu-dm.drbd Nothing I have tried myself (haven't even use pygrub), but I found it when doing a search for DRBD and pygrub. The order you setup up DRBD should not make any difference. The only gain I can see is that you avoid having to reedit your config files. I put it in this order in the guide to avoid introducing new things before testing basic functionality. Good luck with your setup. Daniel _______________________________________________ Xen-users mailing list Xen-users@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-users
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