I think we are running away from the original question here, 'live-migration' and 'evacuate' aim to handle different scenarios. When you use 'live migration', you have a plan that when your compute node will shutdown. IMHO, The only way to provide VM high availability automatically by using 'evacuate' is using shared storage.
2014-02-22 7:58 GMT+08:00 Sangeeta Singh <[email protected]>: > So we have to use the block-migrate flag in the live-migrate command set. > Also which is the minimum libvirt version that support this. We use > lbvirt-0.10.2-29 > > Thanks for the pointer to the patch. I will check that out. > > Sangeeta > > On 2/21/14, 9:38 AM, "Joe Gordon" <[email protected]> wrote: > > >On Thu, Feb 20, 2014 at 9:01 PM, Sangeeta Singh <[email protected]> > >wrote: > >> Hi, > >> > >> At my organization we do not use a shared storage for VM disks but > >>need to > >> evacuate VMs from a HV that is down or having problems to another HV. > >>The > >> evacuate command only allows the evacuated VM to have the base image. > >>What I > >> am interested in is to create a snapshot of the VM on the down HV and > >>then > >> be able to use the evacuate command by specifying the snapshot for the > >> image. > > > >libvirt supports live migration without any shared storage. TripleO > >has been testing it out using this patch > >https://review.openstack.org/#/c/74600/ > > > >> > >> Has anyone had such a use case? Is there a command that uses snapshots > >>in > >> this way to recreate VM on a new HV. > >> > >> Thanks for the pointers. > >> > >> Sangeeta > >> > >> _______________________________________________ > >> OpenStack-dev mailing list > >> [email protected] > >> http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-dev > >> > > > >_______________________________________________ > >OpenStack-dev mailing list > >[email protected] > >http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-dev > > > _______________________________________________ > OpenStack-dev mailing list > [email protected] > http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-dev > -- *---------------------------------------* *Lingxian Kong* Huawei Technologies Co.,LTD. IT Product Line CloudOS PDU China, Xi'an Mobile: +86-18602962792 Email: [email protected]; [email protected]
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