how to script this value to all my VM's,snapshot.maxSnapshots = X

[varonis]

i am trying to add a row to all my vms (1000 vms) :

snapshot.maxSnapshots = 4,

i cannot find any script ,Any help is welcome

10x.

[LucD]

Try it like this

$spec = New-Object VMware.Vim.VirtualMachineConfigSpec 
$spec.extraConfig += New-Object VMware.Vim.OptionValue 
$spec.extraConfig[0].key = "snapshot.maxSnapshots"
 $spec.extraConfig[0].value = 4 

Get-VM MyVM | %{$_.ExtensionData.ReconfigVM_Task($spec)}

You can of course update the selection criteria on the Get-VM cmdlet to find the guests you're after.

[varonis]

thank u so much!!!, really helped me and did the job for me.

[admin]

Hi, varonis,

LukeD gave you the correct script. The script is easily generated if you use project Onyx

a tool which enables you to create script while you click on the VSphere Client - like recording macros.

You can read this post -> LINK about which properties to change in order to generate the script you want.

Best regards,

Leni Kirilov

PowerCLI team

[Zsoldier]

Just an FYI, this KB states that you should only be using that parameter under VMWare Technical support guidance.

http://kb.vmware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&externalId=103128...

Out of curiosity, where would one find a reference to these settings?

[LucD]

For all VMX related parameters I start (of course) at the Sanbarrow site.

The snapshot.maxSnapshots can be found there as well.

[Zsoldier]

Nice.  Thank Luc.

[ew0506]

I know this is an old posting, but I have a quick question for Luc. Do you know if there is a way I can use this script and apply the changes to all host in a cluster?

Maybe using the Get-Cluster cmdlet?

[LucD]

You mean to all VM on all ESXi host in a cluster ?

[ew0506]

Yes.

[LucD]

You could do something like this

$clusterName = "My Cluster"

$spec = New-Object VMware.Vim.VirtualMachineConfigSpec
$spec.extraConfig += New-Object VMware.Vim.OptionValue
$spec.extraConfig[0].key = "snapshot.maxSnapshots"
$spec.extraConfig[0].value = 4

Get-Cluster -Name $clusterName | Get-VM | %{

   $_.ExtensionData.ReconfigVM_Task($spec)}

}

[ew0506]

Thanks for the quick feedback!!

[ew0506]

Luc, I ran the command, but unfortunately I ran into my other dilemna. Since you can only connect to a host or VM in PowerCLI, when you issue the command against that cluster it tells you that I'm not connected to a host. Which in reality, even if I connect to a host that probably won't let me run the command against an entire cluster.

[LucD]

Since you mentioned cluster, I assumed you were connecting to a vCenter.

Did you do a Connect-ViServer to the vCenter before running the script ?

[ew0506]

Newbie mistake, now why didn't I think of that. I got it working now, thanks again!!!

[Wh33ly]

It can be done easier while using

new-advancedsetting or set-advancedsetting, while using -force parameter the New-advancedsetting will override an existing one (so you don't have to use set-advancedsetting)

get-vm test123|new-AdvancedSetting -Name "snapshot.maxSnapshots" -Value "4" -Confirm:$false -Force