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VCF 9.1.1 - Setting up VCF Private AI Services (PAIS) using Artifact Mirroring Tool (AMT) for Air-Gapped Environments

09.09.2026 by William Lam // Leave a Comment

With the rising cost of consuming AI services in the public cloud, the availability of powerful open-weight models, and growing concerns around security and data sovereignty, there was certainly a lot of interest from attendees at last week’s VMware Explore in running their own AI models within their VCF Private Cloud environments.

The timing could not have been better with the release of VMware Cloud Foundation (VCF) Private AI Services (PAIS) 3.0, which is part of the broader VCF Private AI Cloud offering and perfectly complements the latest VCF 9.1.1 release. VCF 9.1.1 also introduces a number of new AI capabilities for infrastructure administrators, including the new AI Assistant for VCF, which can leverage the same PAIS infrastructure to consume AI models running directly within your VCF Private Cloud environment.

Some key highlights in PAIS 3.0 include the new Model-as-a-Service capability, which can now be shared across different vSphere Namespaces to better utilize precious GPU resources, the ability to consume PAIS services directly from vCenter Server in addition to VCF Automation (VCFA), and support for built-in local identity for streamlined proof-of-concepts (POC)/lab deployments.

While not new, the Private AI Services (PAIS) Artifact Mirroring Tool (AMT) provides an easy way to download all the required container images for non-internet-connected or air-gapped environments. A typical workflow would involve inspecting the various deployment YAML manifests, using the imgpkg utility to export the required container images, and then manually updating the deployment manifests to reference your local container registry, hoping that everything works as expected. Since this was my first time using PAIS AMT, I thought it would be useful to document the workflow for those interested in trying out PAIS in their lab environment.

[Read more...]

Categories // Private AI Services, VMware Cloud Foundation Tags // VCF 9.1.1

VCF 9.1.1 - Enabling the the new AI Assistant for VCF in VCF Operations

09.08.2026 by William Lam // 9 Comments

One feature in VMware Cloud Foundation (VCF) 9.1.1 that I am personally excited about is the new AI Assistant for VCF. It is great to see AI being integrated directly into VCF for infrastructure teams, and while this is just the first release, I think it will open up many interesting possibilities for troubleshooting, reporting, operational insights, and ultimately improving operational efficiency by giving infrastructure teams valuable time back.

More importantly, as we enter a world where AI agents can operate at a scale and speed that humans simply cannot match, these capabilities will become increasingly important. AI will not only help infrastructure teams scale their operations, but also better prepare them to defend against and respond to threats operating at machine speed.

AI Assistant for VCF currently supports both cloud-based and VCF Private AI Services (PAIS) LLM model providers. For ease of setup and to quickly get started with the new capability, I will walk through the configuration using Google Gemini, which is currently the only supported cloud-based LLM provider.

[Read more...]

Categories // VCF Operations, VMware Cloud Foundation Tags // VCF 9.1.1

VCF 9.1.1 - Reducing CPU Utilization on AMD Ryzen Zen4/Zen5 by Masking the RDSEED Instruction

09.07.2026 by William Lam // Leave a Comment

While I am a huge fan of the recent AMD Ryzen Zen4/Zen5-based consumer platforms, including the versatile Minisforum MS-A2, it is well known at this point that these processors can exhibit slower entropy generation, which can lead to significantly higher CPU utilization.

I have published a number of workarounds (HERE, HERE and HERE) to address higher-than-expected CPU utilization across different VCF components, but this has continued to feel like a game of whack-a-mole, with the same underlying entropy issue manifesting itself in different services and workloads.

Right before VMware Explore, I had also been testing VMware Cloud Foundation (VCF) 9.1.1 in my lab while finalizing my presentations and workshops for the conference. After deploying certain VCF components, I noticed that CPU utilization had increased significantly. Long story short, after an extensive debugging session with VCF Engineering, we traced the increased CPU utilization to RDSEED instruction requests originating from application space. The simplest solution turned out to be masking the RDSEED instruction from the guest operating systems!

[Read more...]

Categories // VMware Cloud Foundation Tags // Minisforum, VCF 9.1.1

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William is Distinguished Platform Engineering Architect in the VMware Cloud Foundation (VCF) Division at Broadcom. His primary focus is helping customers and partners build, run and operate a modern Private Cloud using the VMware Cloud Foundation (VCF) platform.

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Recent

  • VCF 9.1.1 - Setting up VCF Private AI Services (PAIS) using Artifact Mirroring Tool (AMT) for Air-Gapped Environments 09/09/2026
  • VCF 9.1.1 - Enabling the the new AI Assistant for VCF in VCF Operations 09/08/2026
  • VCF 9.1.1 - Reducing CPU Utilization on AMD Ryzen Zen4/Zen5 by Masking the RDSEED Instruction 09/07/2026
  • 10 Exciting Enhancements in VMware Cloud Foundation 9.1.1 09/03/2026
  • VCF 9.1.1: Adopting the Reduced VCF Management Services (VCFMS) Footprint After an Upgrade 09/03/2026
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