On 06/21/2012 01:01 PM, Steve Campbell wrote: > I've got a Centos 5.8 box that I use for testing Xen VMs. I'm trying to > setup some Centos 6.2 hosts in a high availability situation. I've tried > the pacemaker route and couldn't get the connection established, so > thought I'd try the RH-preferred methods. Mind you, all of these VMs are > on the same host. > > Using Conga, it seems that I need some sort of fencing device, which > doesn't really work in a VM environment. I'm guessing it's the same with > command line configuration. > > Firstly, is it really possible to set up two VMs on the same machine to > do HA? I can't see why not, but I'm not the best source of knowledge on > any of this. > > Secondly, is there a useable fencing device that would work in a virtual > environment for me to test with? I'd really like to avoid fencing > altogether, even once in production, but every thing I read suggests > against that. > > Any type of reply would be appreciated. > > steve campbell "HA" on the same node is kind of contradictory. However, yes, you can build (and fence) a cluster of VMs on the same host. Look at fence_xvm or fence_virsh. Can you use two servers? If so, you can build a truly HA cluster for your VMs; https://alteeve.com/w/2-Node_Red_Hat_KVM_Cluster_Tutorial -- Digimer Papers and Projects: https://alteeve.com _______________________________________________ CentOS-virt mailing list CentOS-virt@xxxxxxxxxx http://lists.centos.org/mailman/listinfo/centos-virt
