Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.
Hello Bart, Don't forget to mention that pcmk actually supports dual primary drbd with the help of cman. Bart, I am working on the same project, and currently working on the cman integration for dlm support. Would you like to coordinate efforts? I do not know much about KVM, but the client asked us to use that instead of XEN or VMWare. Cheers, Nick. On Sun, Oct 30, 2011 at 3:10 PM, Bart Coninckx <bart.coninckx at telenet.be> wrote: > On 10/30/11 19:35, Trey Dockendorf wrote: >> >> Hello, I'm looking to use DRBD for the first time with my existing KVM >> servers to facilitate live migrations, and had a few questions. I've >> seen lots of documentation on using DRBD with LVM based virtual machine >> disks, but I prefer to use qcow2 images. Is it possible to have DRBD >> replicate the volume all the images are stored on rather than each >> individual VM LVM block device? What would be used to ensure that only >> one KVM node is accessing the disks at a time until migration is needed? >> If anyone has any advice or suggestions please let me know. This is >> my first time using anything for file system replication. >> >> Also, due to limitations of my current network I will not have a private >> or public network dedicated to the traffic of replication. Is it >> possible to use a cross-over cable between my two nodes to facilitate >> the DRBD function? Would I still be able to monitor and control DRBD >> via the node's public port using a different server? >> >> Thanks >> - Trey >> >> >> _______________________________________________ >> drbd-user mailing list >> drbd-user at lists.linbit.com >> http://lists.linbit.com/mailman/listinfo/drbd-user > > Hi, > > a cluster software like Pacemaker could serve your purpose very well. Do > incorporate STONITH though, as you will need dual primary DRBD. > Mind you Pacemaker is NOT easy, requires a lot of study and reading. > > Share image files could be done with OCFS2 for example (or any clustering > file system). You then need to create a Pacemaker resource handling this. > Personally I never used OCFS2, but there are lots of eaxmples around. > > HTH, > > B. > > _______________________________________________ > drbd-user mailing list > drbd-user at lists.linbit.com > http://lists.linbit.com/mailman/listinfo/drbd-user >