Re: Script to set the CPU and Memory for VMs

Try this.  I took the hotadd function from here:

http://ict-freak.nl/2009/10/05/powercli-enabledisable-the-vm-hot-add-features/

I tested against 1 VM and it works ok.  it will loop and power all VM's off in parallel, then it will modify them all.  THen power them all on in parallel.  If you don't want parallel you can modify it.

I would test in your lab or against 1-2 non prod VM's first.

Same CSV colum

VMNAME,MEM,CPU

FunctionEnable-MemHotAdd($vm){
    $vmview=Get-vm$vm | Get-View
    $vmConfigSpec=New-ObjectVMware.Vim.VirtualMachineConfigSpec

    $extra=New-ObjectVMware.Vim.optionvalue
    $extra.Key="mem.hotadd"
    $extra.Value="true"
    $vmConfigSpec.extraconfig +=$extra

    $vmview.ReconfigVM($vmConfigSpec)
}

FunctionEnable-vCpuHotAdd($vm){
    $vmview=Get-vm$vm | Get-View
    $vmConfigSpec=New-ObjectVMware.Vim.VirtualMachineConfigSpec

    $extra=New-ObjectVMware.Vim.optionvalue
    $extra.Key="vcpu.hotadd"
    $extra.Value="true"
    $vmConfigSpec.extraconfig +=$extra

    $vmview.ReconfigVM($vmConfigSpec)
}


$vmlist=Import-CSVC:\csvfile.csv


foreach ($itemin$vmlist) {
    $vmname=$item.vmname
    Stop-VM-VM$vmname-RunAsync
    }
foreach ($itemin$vmlist) {

    $vmname=$item.vmname
    $cpu=$item.cpu
    $mem= [int]$item.mem *1024
    Enable-MemHotAdd$vmname
    Enable-vCpuHotAdd$vmname
    Set-VM-VM$vmname-NumCpu$cpu-MemoryMB$mem-RunAsync-Confirm:$false

}

foreach ($itemin$vmlist) {
    $vmname=$item.vmname
    Start-VM-VM$vmname-RunAsync
    }