Saturday, November 17, 2018

Real time VMware VM resource monitoring using PowerShell

This post is about monitoring resource usage of a list of virtual machines hosted on VMware ESXi clusters using PowerCLI. Output format is given below which gets refreshed automatically every few seconds.

Prerequisites:
  • VMware.PowerCLI module should be installed on the node from which you are running the script
  • You can verify using: Get-Module -Name VMware.PowerCLI -ListAvailable
  • If not installed, you can find the latest version from the PSGallery: Find-Module -Name VMware.PowerCLI
  • Install the module: Install-Module -Name VMware.PowerCLI
Note:
  • I am using PowerCLI Version 11.0.0.10380590

Latest version of the project and code available at: github.com/vineethac/vmware_vm_monitor

    Sample screenshot of output:


    Notes:

    VMware guidance: CPU Ready time and Co-Stop values per core greater than 5% and 3% respectively could  be a performance concern.

    Hope this will be useful for resource monitoring as well as right sizing of VMs. Cheers!

    References:

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