Hello,
Upgrade two vmware ESX 4.0 HP DL380 G6 and one vsphere 5.0 Update 1 DL 380p Gen8 to vsphere 5.1 latest HP build, and all follow up patches from vmware. The DL380 G6 have a Smart Array Controller P410i inside and the Gen8 a P420i. I have on all of them the latest patches/firmwares/drivers and get the same screens with warning. IML and ACU didn't show any errors. I know also from another customer that he got the same problems with hios blades. So it looks like we can only wait until HP fix this problem maybe together with vmware.
Best regards
Werner St,