System Center Virtual Machine Manager: Hosts having 0kb free memory

5:24 pm in Uncategorized by evilbart

Hey All,

One of the big issues with SCVMM 2008 for me was that the memory available on the hosts is not correct.  If you are running quite a large environment with a lot of virtual machines, it is difficult to know how many you have left.  You can of course start calculating it manually but… 😉

So here’s a screenshot of the problem

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As you can see, all my hosts are giving zero kb free of memory.  That’s not exactly correct

Here’s how to solve this one:

On each host that has this problem, open the registry and go to the following key:

HKLM\SYSTEM\CurrentControlSet\Services\PerfOS\Parameters

If you see the key “Disable Performance Counters” then change it to 0.

Now you need to restart the WMI service on the host.  Please pay attention because it will restart other services too and you don’t want to do this during production hours…

image

After that the services are restarted, you can refresh your configuration in SCVMM and then you get the correct figures

image

 

Cheers,

Mike