<html><body> Hi, >From below test result, we can get MemResourceAllocationSettingData info, there is only one instance of MemResourceAllocationSettingData. wbemcli ain -ac Xen_ResourceAllocationFromPool <a href="http://root:password@localhost/root/virt:Xen_MemoryPool.InstanceID=">http://root:password@localhost/root/virt:Xen_MemoryPool.InstanceID=</a>"MemoryPool/0" localhost:5988/root/virt:MemResourceAllocationSettingData.InstanceID="Domain-0/mem" However, with a non existing instance of MemResourceAllocationSettingData, the reverse test can return correct results also. wbemcli ain -ac Xen_ResourceAllocationFromPool <a href="http://root:password@localhost/root/virt:Xen_MemResourceAllocationSettingData.InstanceID=">http://root:password@localhost/root/virt:Xen_MemResourceAllocationSettingData.InstanceID=</a>"wrong" localhost:5988/root/virt:Xen_MemoryPool.InstanceID="MemoryPool/0" Meanwhile, the problem exist in Xen_ProcResourceAllocationSettingData instance. I think maybe this is provider's fault, please who can have a look at this? Thanks!! Best, Regards Daisy Guo Lian Yun E-mail: yunguol@cn.ibm.com IBM China Development Lab, Shanghai, China TEL: (86)-21-61008057</body></html>