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Author Archives: brian.wuchner
Centralized Startup Scripting for Automated VM Load Testing
When building or troubleshooting infrastructure, it is often useful to simulate high CPU or memory usage withou deploying full production workloads. To assist with this, I previously created a few purpose built, like cpubusy.sh and memfill.sh. Historically, I created multiple … Continue reading
Posted in Scripting, Virtualization
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Using GuestStore to Deliver Content to Network-Isolated VMs in vSphere
When working with VMs that lack network connectivity, transferring files can be tricky. I recently explored the GuestStore feature a built-in vSphere feature that solves this challenge by allowing file delivery via VMware Tools—even without a network. This post walks … Continue reading
Posted in Scripting, Virtualization
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Comparing Installed Packages on Photon OS Using PowerShell and SSH
When debugging inconsistencies between Photon OS systems, say one is failing and another is stable, it’s useful to compare their installed package versions. In one recent case, I needed a quick way to do just that from my admin workstation. … Continue reading
Posted in Scripting
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How to Use PowerCLI with Entra ID Federated vCenter Logins
vCenter Server 8.0 allows administrators to federate identity with Entra ID (formerly Azure AD), enabling seamless SSO and MFA. However, integrating this setup with automation tools like PowerCLI introduces a few challenges. This guide walks through enabling and using PowerCLI … Continue reading
Posted in Scripting, Virtualization
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How to Increase VMXNET3 Link Speed for Nested ESXi Hosts
I recently came across a KB article (https://knowledge.broadcom.com/external/article/368812/how-to-change-the-vmxnet3-link-speed-of.html) that describes how to set the link speed of a vmxnet3 network adapter higher than the default 10 Gbps speed. In my lab I have several nested ESXi hosts and wanted to … Continue reading
Posted in Lab Infrastructure, Virtualization
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