Hello, maintenance mode is not a requirement but a best practices, and I suggest to install ISM in Maintenance Mode, like this link [URL] ThanksMarco
Is it necessary to bring the ESXi host into Maintenance Mode before installing ISM using "esxcli software component apply -d"? There is no mention about it in the ISM User's guide. But in the installation instructions on product support pages is Maintenance Mode required.    
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