From 8b74cdee11a15c01c552b633c44e2d2182a4bb6f Mon Sep 17 00:00:00 2001 From: davidjumani Date: Tue, 28 Sep 2021 12:19:19 +0530 Subject: [PATCH] kvm : Add note on Power Management Profile --- source/installguide/hypervisor/kvm.rst | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/source/installguide/hypervisor/kvm.rst b/source/installguide/hypervisor/kvm.rst index 4156de45e4..807d944377 100644 --- a/source/installguide/hypervisor/kvm.rst +++ b/source/installguide/hypervisor/kvm.rst @@ -85,6 +85,14 @@ host to work with CloudStack. It is NOT recommended to run services on this host not controlled by CloudStack. +.. warning:: + Certain servers such as Dell provide the option to choose the Power Management Profile. + The Active Power Controller enables Dell System DBPM (Demand Based Power Management) + which can restrict the visibility of the maximum CPU clock speed availble to the OS, + which in turn can lead to CloudStack fetching the incorrect CPU speed of the server. + To ensure that CloudStack can always fetch the maximum cpu speed on the server, ensure + that "OS Control" is set as the Power Management Profile. + The procedure for installing a KVM Hypervisor Host is: #. Prepare the Operating System