I've been plugging away on this lately and made some progress on IPMI/CIM data.  I'd really like to pull it from vCenter directly, but their API is turning out to be quite a pain in how they gather from each vendor.  In the end I will most likely write a custom agent that gets what I need directly from each host on a periodic basis from each host directly.  In the end I think this will work out better since I can then use it for any host, running VMware or not.
Hi,  I would like to monitor my ESXi 5 Hardware. Therefore I need to get the information via WBEM as SNMP is not supported anymore. How can that be done with vFoglight (6.6)? I did a few searches on google and looked through the discussions on this community and was not able to find anything helpful.  Thanks, Daniel
Monitoring ESXi 5 Hardware