Sorry, missed these replies.
It is a bit hit and miss, but In the console run the following command, change the sdx to the one listed on the "Main" page in unraid, it is in the brackets. Change the ,x starting from 0 through to the number or drives you have. It is a bit hit and miss but you should get serial and smart data back on vaild drives.
smartctl -A /dev/sdx -d cciss,x -i