----- Original Message -----

From: "Deepthi Dharwar" <deepthi@linux.vnet.ibm.com> To: users@ovirt.org Sent: Tuesday, May 21, 2013 3:19:18 PM Subject: [Users] Query on Load balancing policies.

Hi,

I have been trying out various cluster policies on latest ovirt. On enabling Load Balancing policy: power saving, I have observed migration of VMs and consolidating them on fewer hosts resulting in under utilised hosts cleared of VMs.

Is the onus on the administrator to switch off all under utilized systems ? Is there any knob I am missing that automatically turns off under utilized hosts and powers on the hosts on a need basis.

Regards, Deepthi

Hi Deepthi, The general answer would be yes; the admin should suspend / turn off the servers and then back on as needed. Some servers will automatically lower power consumption when working on low load using acpi profiles such as "ondemand". So be design you can save power without actually turn off / suspend the servers. We're currently working on improving our scheduling sub-system, so once we have it in place we'll start looking into RFEs such as this one. Patches are always welcome ;) Doron