netfinity 5000 HDD problems

Hi all
I have a netfinty 5000 8659 1sy that has a hard drive problem.
Every time I start up the unit it cannot find any of the harddrives even tho when I start the system the harddrives spin up and I cannot seem to find the problem anywhere

could anyone help me
I don’t really need to have a RAID configuration as I only want it as a home file server

thanks