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Configure Nova for automatic instance start-up


We are currently running an hyperv cluster with storage spaces direct based on 3x nodes. We have OpenStack Ocata deployed as a single node / single VM through RDO.

When a node crashes and failover doesn't occur, instances might get shutoff by hyperv.

Is there a way to tell nova to automatically start these VMs without the need of manually starting these instances ?

Please let me know if you need further information.