Update Manager

Failed ESXi Upgrade: Recovering When Update Manager Goes Wrong

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ESXi host upgrades via vSphere Update Manager (VUM, now Lifecycle Manager in newer versions) are routine operations that usually go smoothly. When they don’t, the failure modes can range from easily recoverable to genuinely painful. Here’s what I’ve encountered and how to handle it. Before You Start The things that should happen before any ESXi … Read more

vSphere Update Manager: First Deployment Lessons Learned

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vSphere Update Manager (VUM) is the centralized patch management component for ESXi hosts. When it works, patching 20 ESXi hosts is barely more effort than patching one. When it’s misconfigured or fighting with your environment, it creates a new category of problems. Here’s what to know before your first VUM deployment. VUM Architecture In vSphere … Read more