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The field notes.19

Technical deep dives, lab-tested guides, and things learned along the way.

19 ARTICLES

01
vDefend

From NSX to vDefend: What Has Changed in VCF Security

Recently, I’ve been diving deeper into the security features of VCF. It turns out a lot has changed since the old days. In this post, I’ll cover some of the changes I consider especially relevant so you can also start your own research. Wha

·2 min read
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02
VCF Automation

VCF 9.1: Using All Apps and VM Apps on the Same vCenter Server

Starting with VCF 9.1.0, we can enable both an All Apps organization and a VM Apps organization in the same vCenter Server. This is a desired feature, as most customers don’t want to transition from the old VM centric model (VM Apps) to the

·2 min read
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03
VMware Cloud Foundation

VCF 9.0 to 9.1 – Upgrade Guide

In this guide, I’ll walk you through the complete upgrade process from VCF 9.0 to VCF 9.1, covering every major component involved in the lifecycle. Along the way I’ll share what went wrong, what I did to fix it and lessons learned. Summary

·9 min read
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04
VMware Cloud Foundation

VCF 9.0 – SSO with VCF Identity Broker

One of the new features introduced in VCF 9 is the VCF Identity Broker, which provides an improved Single Sign-On (SSO) experience. In this article, I’ll show you how to prepare your environment to enable SSO across your VCF Fleet. To get s

·2 min read
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05
VMware Cloud Foundation

VCF 9.0 – Deploying the VCF Fleet Components

If you’re planning to deploy VCF 9.0, it’s important to prepare your environment in advance. In my last article, I explained how to deploy the VCF Installer and how to set up an offline depot. But now the real deployment begins. Although de

·6 min read
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06
VMware Cloud Foundation

VCF 9.0 – How to Deploy the VCF Installer

Deploying VCF 9 starts with the VCF Installer. If you’re not familiar with it, it have been said the VCF Installer “introduces a more flexible set of deployment workflows to suit an extended set of use cases.“ Deployment During the installa

·2 min read
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07
VMware Cloud Foundation

VCF 9.0 – How to Set Up a VCF Offline Depot

If you decide to deploy VMware Cloud Foundation (VCF) 9.0, one of the first tasks is to download the binaries you will use during the deployment. Broadcom provides two methods for doing this: Although the online method is simple and straigh

·2 min read
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08
VCF Automation

VCF Automation – Organization for All Apps vs VM Apps

One of the key announcements in VCF Automation 9 is the introduction of two types of organization – Organizations for All Apps and Organizations for VM Apps. While both organization types provide a robust automation platform, it’s important

·3 min read
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09
VMware Cloud Foundation

Programmatically check Broadcom Compatibility Matrix

For a long time, customers have been able to use the Broadcom Compatibility Guide to check which ESX versions their servers are compatible with. With VCF 9, this type of validation has become even more important. However, what if you have s

·1 min read
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10
VMware Cloud Foundation

VMware Cloud Foundation 9.0 – Fleet Latency Diagram

Recently, Broadcom published an architecture diagram that defines the maximum supported latency between the components of VMware Cloud Foundation. This material brought more clarity and made life easier for VCF architects, especially when p

·1 min read
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11
vSAN

Asymmetry in vSAN ESA – Part 2: The Role of RI and MU Disks

In this second part, we’ll explore how the types of disks used in a host or cluster can directly influence the behavior and construction of a vSAN ESA cluster. In my last article, Asymmetry in vSAN ESA – Part 1: What You Need to Know, I exp

·2 min read
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12
vSAN

Asymmetry in vSAN ESA – Part 1: What You Need to Know

When configuring a vSAN ESA cluster, you may encounter servers that have asymmetrical disks. But what does this mean in practice, and what are the impacts? The asymmetry can occur both in terms of the available storage capacity on each host

·2 min read
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13
VMware Cloud Foundation

VMware Cloud Foundation 9.0 – A New Architecture Model – Part 2

On June 17, 2025, VMware Cloud Foundation 9 was officially released. Since then, many details about the updates have been shared. If you want to stay current with all the announcements, it’s worth following the official VMware blog. Last we

·3 min read
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14
VMware Cloud Foundation

VMware Cloud Foundation 9.0 – What You Need to Know? – Part 1

Now that VMware Cloud Foundation 9.0 is available, more and more people are trying to understand its new features and improvements. To help with that, I’ll create a series of two articles to explain the main changes that are coming. In this

·2 min read
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15
Hardware

Storage Bottlenecks: How to Identify Performance Issues in VMware

Performance indicators are essential tools in managing any IT environment, especially in complex virtualized infrastructures. They provide a crucial starting point for identifying bottlenecks and diagnosing problems. However, knowing which

·3 min read
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16
vSphere

How to Use VMware Customization Specs

With virtualization, creating virtual machines has become very simple. However, most administrators still don’t always have the time for certain fine-tuning tasks that can save a lot of time. That’s why this article shows how to use the VMw

·2 min read
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17
Hardware

Managing Firmware Updates in a VMware Environment

Managing a VMware environment almost always involves also managing the physical servers. Anyone who’s done this knows how much time is spent checking each server model and validating where it fits on the Broadcom compatibility matrix. I alw

·3 min read
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19
VMware Cloud Foundation

VMware by Broadcom — Licensing Changes That Will Affect You!

Recently, Broadcom completed its acquisition of VMware, and this has led to a number of changes. Broadcom reorganized the business into four divisions: New Licensing Model Broadcom also announced a change in the product portfolio and licens

·3 min read
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