For months now many vSphere 6.0 users have had no hardware info populated from their ESXi 6.0 hosts
The good news now is this has a patch. ESXi-6.0.0-20180704001-standard contains the following little nugget of goodness in the patch notes:
- System identification information consists of asset tags, service tags, and OEM strings. In earlier releases, this information comes from the Common Information Model (CIM) service, but in ESXi600-201807401, it comes directly from the SMBIOS.
If you have been suffering this bug for many months this should be included in your next patching round.
Drop a comment if this resolves your issue