I think what you want is nova evacuate which will migrate all instances on a downed compute node to a new node. If you intend to preserve the disk of the VMs during migration, you will need to have them configured on shared storage. Here's the command info:
http://docs.openstack.org/user-guide/content/nova_cli_evacuate.html Hope this helps. -Erik On Fri, May 30, 2014 at 3:55 PM, hossein zabolzadeh <[email protected]> wrote: > Any Idea? > > ---------- Forwarded message ---------- > From: hossein zabolzadeh <[email protected]> > Date: Fri, May 30, 2014 at 12:01 PM > Subject: If an instance going down! > To: "[email protected]" <[email protected]> > > > Hi, > If an instance running on openStack going down, which infrastructure > component is responsible to recover the vm from the failure by doing some > mechanism such as live migration? > > If a host with multiple VMs going down, is there any openStack component > to automatically recover all of VMs from the failure?(For example > automatically start other host, and migrate all of the instances to the new > one). > > Some experts said, this type of disaster recovery must be address at > application layer(DR module on application bundled in VM), instead of > infrastructure layer? > What is your idea? > > > _______________________________________________ > Mailing list: > http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack > Post to : [email protected] > Unsubscribe : > http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack > >
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