Adding VMKernel ports to multiple hosts using PowerCLI

So, yesterday I was asked to quickly put together a script to add VMkernel ports to Multiple ESXi hosts. I have a script to add VM Port groups to multiple host, and this is easy. But the issue with the VMkernel ports is that they require a unique IP address.

So I put together the following CSV and Script

CSV File which includes the below information. Obviously the fields will be changed to suit your network


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Configuring NFS networking for a nested ESXi VM

I have just begun planning and building a lab for my ESXi / vSphere environment so that I can do a upgrade of our vSphere environment (more to come on this process), but I got stuck with an issue for NFS storage. The issue was that I could not mount the datastores on the nested ESXi host, I was not able to find any clear information quickly on the web, so I decided to do a “settings” process here.

A brief background of the environment:

  • Networking: Cisco 3850, with Trunk VLAN configured.
  • Storage: NetApp cDOT with NFS volumes
  • ESXi Version: 6.0U3

The important changes are in bold below and the reasoning is VERY well outlined in this “ancient”, yet 100% valid post by William Lam: Why is Promiscuous Mode Forged?

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Clone Datastores from one ESXi host to Another

As we I progress with our server refresh and I continue to build our global virtualised infrastructure, I am constantly trying to make things easier for my less experienced colleagues and so that there will be consistency in what we do. One of the most tedious tasks must be NFS datastore creation. While we could script this out and create each datastore individually, I figured I would try find a way clone the datastore configuration from one host to another. This way you simply execute the script and let it run along, giving you time for other cool stuff.

This little script will save you hours, especially if you have hundreds of datastores and hosts.

Script 1: This is for host to host clone only

Script 2: This for host to Cluster wide .

Copy the above text in to a text document and save it as a ps1 (powershell) file and run it using PowerCLI.

Creating vSwitch Names for new vSwitches on ESXi Hosts using Host Web Client

A little while back, I wrote on Changing your vSwitch Names on ESXi Host.  I found another way to do this, but unfortunately, this method ONLY works for NEW vSwitches.

Once the vSwitch has been created, you cannot change the name to something else. If you made a mistake and need to change it, you would need to either:

a. Removing the vSwitch and recreating it
b. Doing the Changing your vSwitch Names on ESXi Host option.

login
Login to the ESXi Host directly – https://ip-or-hostname/ui/ (note the trailing “/” after ui)

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Changing your vSwitch Names on ESXi Hosts

So, yesterday I thought to myself, hey, wouldn’t it be cool if we could change the names of the vSwitches on ESXi hosts. That way, it will quickly allow any one to see the different categories of switches – e.g. storage/management etc.

Turns out, this is possible. Thanks to a little bit of “hacking”, you can change the names of your vSwitches.

 

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