To start, what kind of RAID controller is installed? By updating, I'm assuming you mean the RAID controller firmware. Did you also update the driver in the OS (this should have been done first). Are there any relevant updates for the HDD firmware? Please clarify, does the RAID Controller show the disks as bad, or unrecognized - there is a huge difference. Bad (DDD) means the controller knows the drives are part of an array, but has marked them offline for some reason (RAID logs would be helpful to understand why). Unrecognized implies the controller lost the configuration (drives would be marked unknown or ready), in which case, the configuration (which is also stored on the HDDs) may be imported (as a last resort).