High Page Pool Memory Usage on a Windows 2012 R2 Hyper-V Cluster

Hi, 
may someone has a similar Problem or can give me a helping Hand. 
I'm having a 9Node Cluster ( Windows 2012 R2 , fully Patched from RTM Version on ) 
The Cluster is connected to a SAN which is an Equallogic ( Firmware 6.11).  HitKit Driver 4.7.1 
The System running clean and without any Event Logs until the Page Pool Usage of the Nodes turn over 15 GB of Paged pool Memory. 
I monitore that via a Performance Counter ( \Memory\Pool Paged Bytes)
otherwise I have no indication by for example the Process View, the Calculated Sum on the Overview ( TaskManager / Memory ) but shows on the contraditory the 15GB an Memory Usage. 
I downloaded the RAMMap Tool from Sysinternals but that doesnt show me any possible Information for the information , acutally the Information differs from RAMMap to the Performance Counter ( RAMMap = 251MB, Performance Counter = 15GB ) 
Just to make that point clear , there is No Information beside the Sum of Page File on the System Page and the PerfCounter that so much Page Pool Memory is used by any Process . Therefor it is hidden which process "needs" it. 
I tried many thinks ,  like search for a Memory Hole in the Drivers , Hyper-V Stack , Equallogic and hoped for resolution with any new Patch which had a "Memory Leak" Information to them , but so far none has made a difference , maybe someone
has the same Problem. 
My Cluster has routher large VMs on it compared to the Numa Seize ( VM 4-128GB, on DELL R720 ( 2x CPU (8C) 384GB RAM  ) 
( The VMs have also a High IO Usage , as there RAM is used as a RAM Database ( zb. Mongo DB ) ) 
Regards
M

Hi Alex, 
there is something wrong here and not an "normal" Memory Leak , as for that reason I would see the amount of Page Pool Memory assigned to a given Process.
If that would be the Case I could use RAMMap or even Vmmap to adresse the Paged Pool usage, but those Tools dont reflect the Usage like the PerfCounter does. 
 The Windows Driver Kit for a 2012 R2 System is WDK 8.1 which has a necessity of VS2013 ( Important: Before
installing WDK 8.1 Update, you need to install Visual Studio 2013. See the Visual Studio links on this page.)  My Last Hope was to get poolmon.exe and identify the Source for the "Paged Pool" Usage .
We are having that Problem now since the Early Days of Windows 2012R2 and because the Usage is quite "hidden" we only found out , when we ran out of Memory without knowing why. 
Worst Usage Rates where up to 150GB of Paged Pool  !! given a RAM 385GB ( Dell R720)  that is quite a Number. 
Im wondering if noone else with a cluster ( seems that the Node numbers in a Cluster and the "RAM" Seize of the VM ( >32GB )  have a tremendous impact on that given Problem , with a 4 Node Cluster the Problem isnt so big )  

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