2012 HYPER-V RAM Usage

I have a hyper-v cluster with 3 2012 nodes. One of the nodes is reporting to be using 97% of RAM.

- There is 250gb of RAM on the server.
- The VMs on this host only amount to 100gb of RAM
- The server itself only appears to be using 6gb.

For whatever reason, I am finding it close to impossible to account for all RAM usage. Resource monitor doesnt help here either

Ideas?
LVL 1
Lamont77Asked:
Who is Participating?
I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

compdigit44Commented:
Any backup jobs running?
Snapshots?
Are all host the same make, model and config?
Philip ElderTechnical Architect - HA/Compute/StorageCommented:
What monitoring app is flagging 97% RAM usage?
Lamont77Author Commented:
It was cached memory that was eating it all and after logging with MS they have identified this as a memory leak that is a known issue with Hyper-v. We have applied their patch and everything is looking normal now.

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
Acronis True Image 2019 just released!

Create a reliable backup. Make sure you always have dependable copies of your data so you can restore your entire system or individual files.

Philip ElderTechnical Architect - HA/Compute/StorageCommented:
What is the hotfix number please?
Lamont77Author Commented:
None of the other answers were right
Philip ElderTechnical Architect - HA/Compute/StorageCommented:
What was the hotfix number please? I would like to research the problem (I'm a Cluster MVP that builds Hyper-V clusters).
Lamont77Author Commented:
Here it is. I think it's been released into the wild now so if your new Hyper-V installation is fully patched you shouldn't see any of the issues we did:

http://support.microsoft.com/kb/2975719
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today
Windows Server 2012

From novice to tech pro — start learning today.