WilliamLam.com

Cross vCenter vMotion workloads from vSphere 7.0 to vSphere 9.0

by // 2 Comments

While vSphere 7.0 officially reached end of support in October 2025, many organizations continue to operate on it, often not by choice, and on hardware that is likely end of life.

An established transition strategy among enterprises is to migrate workloads into a newly deployed environment using the battle tested vSphere vMotion capability.

A lesser known capability introduced with both VMware vSphere Foundation (VVF) and VMware Cloud Foundation (VCF) 9.0 allows non-disruptive migration of workloads from vSphere 7.0 to vSphere 9.0, as the minimum supported version of the vSphere Distributed Switch (VDS) is 7.0 as you can see from VDS creation workflow wizard.


Users currently have two supported methods for migrating workloads from their existing vSphere 7.0 environment into either a VVF or VCF 9.0 deployment using the native Cross vCenter vMotion capability.

[Read more...]

Installing Realtek Network Driver Fling using Free ESXi 8.0 Update 3e ISO

by // 8 Comments

The typical method for authoring a customized ESXi image that contains additional drivers and packages is by either using vSphere Lifecycle Manager (vLCM) if you already have a vCenter Server deployed or by using PowerCLI cmdlets which does not depend on vCenter Server to to create a new image.

In the latter option of using PowerCLI, users must provide a reference to the ESXi base image which can be be provided by using Broadcom's Online Depot (requires Broadcom Download Token) or served using a local ESXi offline bundle zip file.

As some of you may have observed over the years, not every single ESXi release (typically patch/updates) will include both an ISO and offline bundle deliverable. If you have an existing vCenter Server, you can download ANY ESXi release in either ISO and/or offline bundle format using vLCM.

What if you only had access to an ESXi ISO, can you still take advantage of some of the custom drivers including the recently released Realtek Network Driver for ESXi Fling?

[Read more...]

Modern Kubernetes Visualization using Radar

by // Leave a Comment

Over the years, many graphical user interfaces have appeared for Kubernetes, but only a few continue to be actively maintained and developed. While I prefer the standard kubectl CLI for basic interactions with a Kubernetes (k8s) cluster, a visual representation can be extremely helpful for troubleshooting and debugging.

Headlamp was my go to UI tool for k8s, which provides a simliar user experience to many of the previous Kubernetes visualization tools, nothing fancy but it gets the job done.

I recently discovered another OSS Kubernetes visualization tool called Radar, which aims to fill some of the gaps left by existing tools on the market. I was a bit skeptical as this could just be another "modern" tool until the next one is built, but I figured I would give it a try!


At first glance, it has a much cleaner, modern look and feel after I connected it to my vSphere Kubernetes Service (VKS) cluster. The homepage provides a summary of all the expected datapoints including versioning, resource utilization, deployment details, and the health of components and workloads.

[Read more...]