Through contact with support I found that this feature did not work with ESXi 4.1.0
Hi There,   I have been trying to test the automated disk resizer in my environment - in this instance decreasing the disk allocation according to the recommendations. Foglight attempts to do this - shuts down candidtate VM from Virtual Center, reconfigure VM, boots up.  In VC it generates an error: 'Invalid configuration for device '0' ' In Foglight web GUI the following is displayed: 'Failed: Unhandled null-pointer exception'  Can anyone shed some light please? [IMAGE] [IMAGE] OS is Server 2008 R2 X64 and VMware Tools are up do date (hosted on ESXi 4.1.0)  Thanks! 
Storage Rightsizing Error