Hi,<div><br></div><div>OpenNebula will only monitor and manage VMs created through it, it will not interfere with your existing VMs.</div><div><br></div><div>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].</div>
<div><br></div><div>Regards</div><div><br></div><div>[1] <a href="http://opennebula.org/documentation:rel3.6:schg#configuration">http://opennebula.org/documentation:rel3.6:schg#configuration</a><br clear="all">--<br>Carlos Martín, MSc<br>
Project Engineer<br>OpenNebula - The Open-source Solution for Data Center Virtualization<div><span style="border-collapse:collapse;color:rgb(136,136,136);font-family:arial,sans-serif;font-size:13px"><a href="http://www.OpenNebula.org" target="_blank">www.OpenNebula.org</a> | <a href="mailto:cmartin@opennebula.org" target="_blank">cmartin@opennebula.org</a> | <a href="http://twitter.com/opennebula" target="_blank">@OpenNebula</a></span><span style="border-collapse:collapse;color:rgb(136,136,136);font-family:arial,sans-serif;font-size:13px"><a href="mailto:cmartin@opennebula.org" style="color:rgb(42,93,176)" target="_blank"></a></span></div>
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<br><br><div class="gmail_quote">On Sat, Jul 14, 2012 at 10:29 PM, Ricardo Duarte <span dir="ltr"><<a href="mailto:rjtd21@hotmail.com" target="_blank">rjtd21@hotmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
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Hi there,<br><br>I currently have some ESXi hosts where I have spare capacity, but already have some virtual machines running on them.<br>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.<br>
If I add the host to OpenNebula (ensuring nothing breaks in the process), will it see and/or mess with my non-opennebula instances?<br>My worries are:<br><br>- Will OpenNebula shutdown instances it doesn't manage?<br>
- Will OpenNebula calculate available capacity correctly, by decrementing the value used by unmanaged virtual machines?<br><br>Thanks,<br>Ricardo<br> </div></div>
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