[one-users] Share host with non-opennebula VMs

[Carlos Martín Sánchez]

Hi,

OpenNebula will only monitor and manage VMs created through it, it will not
interfere with your existing VMs.

But because OpenNebula assumes exclusive use of the hosts, the scheduler
won't take into account the resources used by the previous VMs. You can
however set manually how much host memory is reserved for the hypervisor
and your VMs with the HYPERVISOR_MEM attribute in /etc/one/sched.conf [1].

Regards

[1] http://opennebula.org/documentation:rel3.6:schg#configuration
--
Carlos Martín, MSc
Project Engineer
OpenNebula - The Open-source Solution for Data Center Virtualization
www.OpenNebula.org | cmartin at opennebula.org |
@OpenNebula<http://twitter.com/opennebula><cmartin at opennebula.org>



On Sat, Jul 14, 2012 at 10:29 PM, Ricardo Duarte <rjtd21 at hotmail.com> wrote:

>  Hi there,
>
> I currently have some ESXi hosts where I have spare capacity, but already
> have some virtual machines running on them.
> Unfortunately I can't move them to another host. My plan is to keep the
> host, but create new datastores and networks just for OpenNebula instances.
> If I add the host to OpenNebula (ensuring nothing breaks in the process),
> will it see and/or mess with my non-opennebula instances?
> My worries are:
>
> - Will OpenNebula shutdown instances it doesn't manage?
> - Will OpenNebula calculate available capacity correctly, by decrementing
> the value used by unmanaged virtual machines?
>
> Thanks,
> Ricardo
>
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>
>
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