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Exploring GenAI with a private ChatGPT solution using my own blog posts

10.04.2023 by William Lam // 3 Comments

Generative AI (GenAI) has taken the world by storm and not just in tech but it has also infiltrated every single industry with billions of dollars (here, here, here, here, here, here, here & here) being invested to unlock its hidden potentials.

I am sure many of you have already experimented with some aspect of GenAI whether that is using chat interfaces like OpenAI's ChatGPT or Google Bard to the impressive text-to-image generation tools like DALL-E from OpenAI, Midjourney and Stable Diffusion from Stability.AI to just name a few.

I use ChatGPT/Bard on a regular basis to help me debug cryptic Linux error message to helping me a craft complex regular expression to generating random PowerShell snippets for automating various tasks, the possibilities even for IT Administrators are pretty endless. My workflow typically includes the use of ChatHub, an all-in-one chatbot browser plugin that allows me to use both ChatGPT and Bard simultaneously to compare and/or identify the best possible answer.

Until recently, solutions like ChatGPT only have access to data trained up to Sept 2021 but even with this constraint, the biggest issue that plagues all of these AI models are their hallucinations. AI hallucinations is where an AI simply makes up responses believing that it is factual and while this problem is being worked on by the broader industry, it certainly makes it difficult to trust and validate an answer before using it yourself. I have certainly seen this first hand when asking ChatGPT to generate some code, I would say it is usually 60/40% correct but I often have to verify and re-prompt when I know the syntax or answer is completely wrong.

While using these platforms, I had been thinking about a personal use case of mines and I was curious if other bloggers or even some of my readers might be able relate?

[Read more...]

Categories // Automation, GenAI Tags // blogging, chatgpt

Quick Tip - Easily identify Virtual Appliances using vSphere API

10.03.2023 by William Lam // Leave a Comment

VMware Virtual Appliances (VA) that are built from either VMware or from our 3rd party eco-system will typically include useful metadata about the solution including name, version, vendor and other details.

Using the vSphere UI, you can locate this information when selecting a VM under Configure->Settings->vApp Options and below is an example for a vCenter Server Appliance (VCSA).


Note: If you deploy a VA directly to an ESXi host, these VA properties will not be available as the vApp capability is a vCenter Server feature.

I recently had an inquiry from a customer with over 10K+ VMs that was looking to identify this information and obviously, using the vSphere UI would be a non-starter and was looking for a way to automate this.

[Read more...]

Categories // Automation, PowerCLI Tags // virtual appliance

Disabling vCenter Lifecycle Manager automatic download using vSphere API

10.02.2023 by William Lam // 1 Comment

By default, vCenter Server will automatically check and download the latest ESXi updates that can then be used by either the deprecated vSphere Update Manager (VUM) or its replacement which is vSphere Lifecycle Manager (vLCM), both of which can be managed under the Lifecycle Manager section in the vSphere UI.

Interestingly, I have had a number of inquiries about disabling the automatic download setting using automation, as I assume users have setup Update Manager Depot Service (UMDS) instance for consolidated and/or offline access.


Disabling the automatic download in the vSphere UI is very straight forward by going to Lifecycle Manager->Settings->Administration->Patch Downloads and clicking on the Edit button to enable or disable the setting.

Because the Lifecycle Manager section combines functionality for both VUM and vLCM, it can sometimes be confusing on which vSphere API to use and this is important becauase VUM does not have any public API and only subset of its functionality can be automated using specific VUM PowerCLI cmdlets. This is another benefit to using vLCM, not only is it the replacement for VUM going forward, but all of its functionality is available using both the vSphere UI or vSphere REST API.

With that said, the automatic download setting is actually a VUM-based configuration and as mentioned earlier, there are no public APIs for managing these settings. However, I recently found a clever workaround that would allow users to automate disabling this setting.

[Read more...]

Categories // Automation, PowerCLI Tags // vLCM, vSphere Lifecycle Manager

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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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