Hi, I hope this doesn't lead you astray, but I was under the impression that live-migrating (if that's what you're attempting) requires the disk image to be available on both nodes? Perhaps try using drbd in dual-primary mode? I assume your VM is accessing the drbd targets listed in your config directly.
-- Matthew On 03/16/2013 07:16 AM, Matthias Teege wrote: > Hi, > > I'm try to setup a two node cluster for virtuell machines (KVM/libvirt) > with drbd as storage backend. For each vm I use two drbd devices. Starting > and stopping works but I cant migrate the VM to the second node. If i > switch a node to "standby" the VM stays "started" and there ist no call > to VirtualDomain. > > I found the following in this list [0] > > "Yes, migration only works without order-contraints the migrating service > depends on ... and no way to force it" > > and I use order constraints because I need the drbd devices up before > the vm starts. > > How do I migrate a vm or other ressources in the correct order? Is there > another way to migrate vm and drbd device, maybe start/stop? > > My current config looks like this: > > primitive vma_R ocf:linbit:drbd params drbd_resource="vma_R" \ > op monitor interval="29s" role="Master" \ > op monitor interval="31s" role="Slave" \ > op start timeout="240s" \ > op stop timeout="100s" > > ms ms_vma_R vma_R \ > meta master-max="1" master-node-max="1" \ > clone-max="2" clone-node-max="1" \ > notify="true" > > primitive vma_S ocf:linbit:drbd params drbd_resource="vma_S" \ > op monitor interval="29s" role="Master" \ > op monitor interval="31s" role="Slave" \ > op start timeout="240s" \ > op stop timeout="100s" > > ms ms_vma_S vma_S \ > meta master-max="1" master-node-max="1" \ > clone-max="2" clone-node-max="1" \ > notify="true" > > primitive kvm_vma ocf:heartbeat:VirtualDomain \ > params config="/etc/libvirt/qemu/vma.xml" \ > hypervisor="qemu:///system" migration_transport="ssh" \ > meta allow-migrate="true" \ > op start timeout="120s" \ > op stop timeout="180s" \ > op monitor depth="0" timeout="30" interval="10" > > colocation vma_on_drbd \ > inf: ms_vma_R:Master ms_vma_S:Master kvm_vma:started > order vma_after_drbd \ > inf: ms_vma_S:promote ms_vma_R:promote kvm_vma > > Thanks > Matthias > > [0] http://www.mail-archive.com/pacemaker@oss.clusterlabs.org/msg10499.html > > > _______________________________________________ > Pacemaker mailing list: Pacemaker@oss.clusterlabs.org > http://oss.clusterlabs.org/mailman/listinfo/pacemaker > > Project Home: http://www.clusterlabs.org > Getting started: http://www.clusterlabs.org/doc/Cluster_from_Scratch.pdf > Bugs: http://bugs.clusterlabs.org
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_______________________________________________ Pacemaker mailing list: Pacemaker@oss.clusterlabs.org http://oss.clusterlabs.org/mailman/listinfo/pacemaker Project Home: http://www.clusterlabs.org Getting started: http://www.clusterlabs.org/doc/Cluster_from_Scratch.pdf Bugs: http://bugs.clusterlabs.org
