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Automating counting cores & TiBs for new VMware vSphere Foundation (VVF) and VMware Cloud Foundation (VCF) SKUs

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Happy New Year! 🥳🎉🥂

At the end of 2023, we announced two new offerings called VMware vSphere Foundation (VVF) and VMware Cloud Foundation (VCF) that drastically simplifies our overall vSphere-based portfolio and licensing model.

To help our users understand the new licensing model which uses both CPU cores and TiB (for vSAN storage sizing), I have created a PowerCLI function (Get-FoundationCoreAndTiBUsage) that will inventory your existing vSphere environment and provide a detailed report on the number of CPU Core and/or TiB license count that would be required whether you are considering the VVF or VCF offering.


For those familiar with my previous versions of the vSphere and vSphere+ core counting scripts, this function works in a very similar manner with the output configurable using either console or outputting it to an excel spreadsheet for further processing. For more details on the calculations, where to download and how to use the PowerCLI function, please see VMware KB 95927.

VMware Flings are back!

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In addition to the big announcements from yesterday on major simplification of the new VMware by Broadcom offers and licensing model and the new chapter for the VMware Desktop Hypervisor products, I have one more piece of exciting news that I would like to share with our users, just in time for the holidays! 🎁

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Custom vSAN HCL JSON for VMware Cloud Foundation (VCF) 5.1 and vSAN ESA using Nested ESXi

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One of the exciting new features in the latest VMware Cloud Foundation (VCF) 5.1 release is the support for the vSphere 8.0 Update 2 and the new vSAN Express Storage Architecture (ESA), which can be enabled for both the VCF Management and Workload Domain.

As many of you already know, one of the easiest way to explore and play with new VCF releases is by leveraging Nested ESXi, which dramatically reduces the amount of time for setting up the infrastructure before you can start deploying VCF. This is how I initially played with VCF 5.0 and I had assumed the same would also work for the latest VCF 5.1 release.

Shortly after kicking off the VCF Bringup process, I noticed it failed immediately with an error about validating the virtual disks on my Nested ESXi VM against the vSAN HCL!? 😧


I thought this was really strange, especially in a non-VCF deployment, enabling vSAN ESA using vCenter Server only gives you a warning about your hardware not being on the vSAN HCL but does not stop you from continuing with the deployment. For testing and homelab purposes, this is completely acceptable and the fact that vCenter Server allows this operation but VCF blocks it, was an interesting UX decision.

If hardware validation against the vSAN HCL is required for VCF 5.1 when enabling vSAN ESA, then this would severely impact who can play with the latest VCF release, at least if you wanted to try out vSAN ESA.

UPDATE (05/28/24) - If you are using Nested ESXi and wish to enable vSAN ESA for a VCF Workload Domain, please take a look at this blog post HERE for more details.

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