vm: note on kvm dynamic scaling (#283)

shwstppr · web-flow · commit fb0d37cf3019 · 2022-08-26T10:33:50.000+05:30
Related apache/cloudstack#6626
diff --git a/source/adminguide/virtual_machines.rst b/source/adminguide/virtual_machines.rst
@@ -493,6 +493,8 @@ Limitations
    issue with these operating systems, which will freeze if an attempt
    is made to dynamically scale from less than 3 GB to more than 3 GB.
 
+-  On KVM, not all versions of Qemu/KVM may support dynamic scaling. Some combinations may result CPU or memory related failures during instance deployment.
+
 
 Resetting the Virtual Machine Root Volume on Reboot
 ---------------------------------------------------
diff --git a/source/installguide/hypervisor/kvm.rst b/source/installguide/hypervisor/kvm.rst
@@ -48,6 +48,8 @@ with OpenVswitch, the requirements are listed below
 
 -  openvswitch: 1.7.1 or higher
 
+Not all versions of Qemu/KVM may support dynamic scaling of instances. Some combinations may result CPU or memory related failures during instance deployment.
+
 In addition, the following hardware requirements apply:
 
 -  Within a single cluster, the hosts must be of the same distribution
