By script of the vmx file changes?

I have a number of existing VMs that I want to add some advanced configuration settings. Instead of using the GUI to add the values, I would like to automate the process. My plan is to write a script that turns off the virtual machine and adds the new values (isolation.tools.x or isolation.device.x) in the vmx files. Is - this safe/advisable to do so via a script? Someone at - it an example of existing script, they would be willing to share?

If you want to do with just the VI Toolkit itself, then you will need to do something like this

$vm = get - View (Get - VM NameofVMtoUpdate) USER.USER
$vmConfigSpec = new-Object VMware.Vim.VirtualMachineConfigSpec
$vmConfigSpec.extraconfig = new-Object VMware.Vim.optionvalue
$vmConfigSpec.extraconfig [0]. "Key ="
lefthandsideofentry"
$vmConfigSpec.extraconfig [0]. ' Value ='
rigthhandsideofentry + '.
$vm. ReconfigVM ($vmConfigSpec)

Where

  • NameofVMtoUpdate is the name of the virtual machine that you want to update (from the vCenter inventory)

  • lefthandsideofentry is the entrance of advanced configuration, that you want to set

  • rigthhandsideofentry is the value of the advanced configuration entry

As an alternative some of these people who hang out on the VI Toolkit region have implemented a set of Powershell extensions for the VI toolkit available from CodePlex (http://www.codeplex.com/vitoolkitextensions). Game-TkeVmx will allow you to set values (essentially the same code as above just rolled into a function to keep your code cleaner)

Tags: VMware

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