Hi,
i've inherited a vcenter+esxi installation.
In VCenter Server Appliance I can notice that it is guest managed, that it means that it is using open VM tools.
VMware Tools:- Running Status:Running
- Version10346 (10.3.10)
- Version Status:Guest Managed
The VMware Tools status is unknown. A VMware Tools implementation is installed on the guest operating system, but it is not managed by VMware. - Installation Type:Open-source VMware Tools
I don't think it is the standard for Vcenter installation.
In this case I can't update VM Hardware Compatibility to Match host using "Update" tab.