On Friday 23 September 2011 18:28:41 Felix Frank wrote: > On 09/23/2011 06:18 PM, Bart Coninckx wrote: > > Felix, > > do you combine your setup with clustering software? Or do you script a > > live migration? I'm intrigued by how you handle the timing in the latter > > case. > > ah, I didn't make this really clear. > > I haven't set this up with either live migration capabilities nor > pacemaker. All I have is a hot standby for manual recovery in case of a > primary node failure. Sorry. > > I believe that for pacemaker, you would have both your nodes be primary > at all times (i.e., not use a master-slave set at all). > Not a thrilling perspective, I guess.
Dual primary isn't really needed (but its very nice to have). If you use one drbd-resource per vm, you need the dual-primary only during the migration. You can also run single-master that is exported via iscsi/aoe and mounted to all nodes, cluster filesystem on top and you also get an extendible vm- platform. But then you will have vms writing over network to the other node through iscsi which is writing back to your node via drbd... Have fun, Arnold
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