In vSphere 6 VMFS-3 is deprecated (there is no option to create VMFS-3 and support will no longer be available at the future vSphere releases).

Additionally you need to check VMware Tools (3rd step) and VM Hardware Version (4th step) and upgrade them if applicable. VCenter is always first, updating ESXi hosts are the second step. Hardware behind this post: 1 nested vCenter Appliance, 3 nested ESXi hosts, cluster (HA, DRS,FT) is configured What’s the right update sequence for ESXi and vCenter ? Jump from vSphere 6.0 to Update 1 is updating, vSphere 5.1 to 5.5 is upgrading Note: updating is not a synonym for upgrading term.

To get some more information please use links in the references. Today’s FAQ does not cover complex architecture (with external SSO or etc.) and upgrading itself. This type of updating is recommended when you have a small-sized infrastructure (whether it’s demo or production). Now we are going to talk over manual process of updating core vSphere’s components – ESXi and vCenter.

In the previous post we discussed the tool that makes upgrading and updating process easier – vSphere Update Manager.

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