Starting a defined VM on a different host

4 Mar 2021

      Hi,

I posted this thread a week ago under ovirt users: https://lists.ovirt.org/archives/list/users@ovirt.org/thread/EJH2X5X5FDIR7Q7...

Maybe I posted on the wrong list. Anyway, I didn't get any answer yet.
Hope you can help me here.

In short, I have a VM under Cluster Affinity label. And need to cold migrate this VM to another host.
For that, I'm doing this (Via Python REST API):

  *   Stop the VM.
  *   Remove its Affinity label.
  *   Update its host to the target host.
  *   Start the VM.

But the result is that the VM is always keep starting on its current host.

For updating the VM host, I used few ways as:

vm_service.update(
                types.Vm(
                                host=types.Host(
                                    id=host_id
                    ),
    )
)

Or:

vm_service.update(
                types.Vm(
                                host=types.Host(
                                    name=host_name
                    ),
    )
)

Then started the VM using:

vm_service.start()

or using:

vm_service.start(
    vm=types.Vm(
            host=types.Host(
                                                                name=host_name
                                                ),
        )
)

vm_service.start(
    vm=types.Vm(
            host=types.Host(
                                                                id=host_id
                                                ),
        )
)

I get no errors, but VM keeps starting on the current host and not on the new target host.
BTW - in case it would start on the target host, the plan is to add affinity label back just after.

Thanks,

Lavi Buchnik
Cloud System Engineer
T: +972-2-6499352
M: +972-52-8542307
Lavi.Buchnik@exlibrisgroup.com
[cid:image002.jpg@01D710F9.A61823E0]
www.exlibrisgroup.com<http://www.exlibrisgroup.com/>

Lavi Buchnik

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