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Archive for the ‘PowerCLI’ Category

vSphere 5.1 Release Date leaked? (Updated)

July 31, 2012 2 comments

VMware asked me to pull the post about the release date.

 

So I guess you all have to wait for VMware to release some more info (and not by accident like they did yesterday Smile).

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Categories: PowerCLI, VMware, vSphere 5 Tags:

List HA Runtime States with PowerCLI

September 16, 2011 Leave a comment

The HA Agent on vSphere 4.x Hosts can be in several states:

– uninitialized
– initialized
– running
– error
– agentShutdown
– nodeFailed

If you have HA Enabled on your cluster, all states except running are basically not good and requires investigation.

These states can be fetched, but to my knowledge there is no easy cmdlet available to do so… so we’ll have to dig in the SDK.

Read more…

Categories: PowerCLI, vSphere

Enable RSS in Guest OS with PowerCLI

August 9, 2011 Leave a comment

If you have Windows 2003/2008 (R2) VMs with the VMXNet3 vNIC, you might want to enable RSS.

See the following article for more details and the improvements when enabling RSS.

Enable RSS (Receive Side Scaling) on Windows 2008 (R2) Virtual Machines

To enable RSS, you need to do some action inside the VM.  Luckily, this can be scripted.  Basically, we will invoke a batchfile from PowerCLI (through VMware Tools) to change a regkey which enables RSS.  This can be easily adapted to loop through all VMs and enable it on all with VMXNet3 adapters.

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Categories: Network, PowerCLI, VMware, vSphere

Suppressing VMware VIX Warnings when running Invoke-VMScript cmdlets

August 3, 2011 Leave a comment

I have a practice of running up-to-date software.

Some scripts in PowerCLI which perform in-guest operations, depend on VMware VIX.

The latest version of VIX is 1.10.1.12915.

image

Read more…

Categories: PowerCLI, VMware

Get all VMs with Fixed MAC Addresses using PowerCLI

July 29, 2011 6 comments

I needed a list of all VMs with a Fixed MAC Address running on vSphere (it works for ESX 3.5 as well).

Let’s build up this command from the beginning.  We start with Get-VM to get a hold of all VMs.

Get-VM

This of course will list just any VM.  So we need some filtering.

Read more…

Categories: ESX, PowerCLI, vSphere

Find VMs with Mismatched OS using PowerCLI

July 27, 2011 1 comment

Almost every environment has one or more VMs where the running OS doesn’t match what is configured on the VM.

 

Let me explain:

Every VM has a property which contains the OS version:

image

This is usually set when you create the VM.  In this example, the VM is set to Windows 7 x64.  But if you install an OS in the VM, VMware is also aware of the Guest OS through VMware Tools.  This is visible on the Summary page of the VM.

image

Both fields should match, but if you upgrade the OS inside the VM and forget to change the Settings of the VM, you have a mismatch.

Read more…

Categories: PowerCLI, VMware, vSphere

How to Hard Kill a stuck VM with PowerCLI

February 9, 2011 2 comments

Sometimes a VM is stuck and can’t be killed with vSphere Client (or from within the VM).

On ESX, you could login and perform the famous kill –9 <PID> to kill the VM.  Most people don’t realize that this functionality has been added to PowerCLI in version 4.1 Update 1.

First, connect directly to the ESX(i) host.

Connect-VIServer -Server <Hostname> -Credential $(Get-Credential -Credential root)

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Categories: PowerCLI, PowerShell, vSphere