Just doing the initial research on whether it is possible to update the vCenters using PowerCLI. i have 20 vCenters and it would definitely help to be able to automate.
There is this post Patching the vCenter Server Appliance (VCSA) using the REST API - Part 2 (PowerCLI Module)
Blog: lucd.info Twitter: @LucD22 Co-author PowerCLI Reference
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thanks for the link. I will read it over and post my script for the community when I finish.