Reading Time: 4 minutes The installation or the upgrade procedure of vCenter Server components are quite similar. Starting from version 5.1 there are more components, so you can use the Simple Mode install or upgrade SSO, Inventory and vCenter services in different (but sequential) steps. I’ve used the Simple Mode for new installation and for upgrade from 5.0 without problems. But some people have report issues in some cases, so probably separated steps could be a better choice for an upgrade.
