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I have an Rocky OpenStack cluster, I want to monitor memory usage of instances.

monitoring of Linux instances is OK but Windows Server instances do not provide any data for memory usage.

I've searched a lot, I've installed balloon driver on windows instances but not worked for me. All components are updated to latest version.

So how can I get memory usage data from them?

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2 Answers 2

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You must be Install the Virtio Balloon driver AND the Balloon service in the guest:

1-Open Device Manager and see if there is an unknown PCI device. If so, right click it and install the driver manually from D:\Balloon\2K16\amd64 (or 2k12, 2k8, etc)

2-Now copy the entire amd64 folder into C:\Program Files\ (NOT x86) and rename it "Balloon". So, now you have the amd64 folder from the disc copied as C:\Program Files\Balloon

3-Open an Administrative Command Prompt and cd to C:\Program Files\Balloon

4-Run this command:

BLNSVR.exe -i
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In PowerShell

Get-WmiObject -Class win32_operatingsystem -Property TotalVisibleMemorySize,FreePhysicalMemory

Or 

wmic os get freephysicalmemory

Or

systeminfo
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  • Thanks for your response. But how to use these commands from outside of windows? I want to monitor them without login to them
    – Milad Yarmohammadi
    Aug 5, 2019 at 10:00
  • You can pass -ComputerName to Get-WmiObject to run it remotely
    – Gaius
    Aug 5, 2019 at 10:57

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