Maybe some people also were just afraid of touching these systems, I don’t know for sure. There was just not enough time to do maintenance tasks like this throughout the last few months or maybe years. Our hyper-converged infrastructure was running 24/7 without getting much care, like care in the form of firmware upgrades. But before we could upgrade our vCenter from 6.5 to 6.7, we had to do some host upgrades first. We’re using vCenter for our daily tasks like managing virtual workloads, deployment of new ESXi hosts, etc. One of the milestones is (at the writing of this blog post already “was”) the upgrade of our vCenter. You guys rock! Forewordīefore we dive deeply into the vCenter upgrade process, and what happened, I’d like to explain some steps first to better understand our approach and the upgrade process in general. I’d like also to shoutout a big thank you to my team. In this blog post, I’d like to share some personal experiences regarding the upgrade of our vCenter. The upgrade will be rolled out in multiple steps due to personal resources (we’re a small team and currently, it’s summer holiday season) and also to avoid too much downtime. We took enough time to get the inventory, check all the hosts for compatibility and test the various upgrade paths. My team and I were tasked with a global vSphere upgrade on all of our ESXi hosts, hyper-converged systems and our vCenter.
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