I am planing to upgrade UCS B200 M2 and M3 servers, Infrastucture Firmware and UCS Manager Software. Most of the systems are RHEL but we also have Windows and some VMware servers. I am thinking of going to version 2.2(8i). Most of the firmwares are 2.1(3a) but there are also some older 2.1(2a) 2.0(1t) and 1.4(2b). The Fabric Interconnects are in cluster. Should I consider upgrading the OS drivers manyally one by one before upgrading the overall firmwares? The reason that I am doing this firmware is the lost of hard drives without any notification, I think it has something with the RAID driver. Thank you!