openstack team mailing list archive

["Vaze, Mandar" <Mandar.Vaze@xxxxxxxxxxx>]

>    Here is my question:
>    1. Is the stop operation of vm instance means to delete the vm and keep nothing except keep 
>    this record in databases ?
>    2. Is the start operation of vm means to creat a new vm instance according to the 
>    recorde in databases ?

While some hypervisors like Xen (Look at _shutdown method in nova/virt/xenapi/vmops.py) seem to have shutdown functionality,  for "libvirt_type=kvm" - there is no separate shutdown/stop.
(Probably that’s why) compute manager calls "self.driver.destroy" from _shutdown_instance() method  -  Look at nova/compute/manager.py if interested.

Hope this helps.

-Mandar
   


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