Can you try with one of the hard drives removed?
That would be somewhat difficult tonight. I have it in a stack with another silver Power_Xeon_Mac under it and a system running on top of it etc etc etc. However I can shut things down and begin the dusty process if we really need to rip out the second disk. -- Dennis Clarke RISC-V/SPARC/PPC/ARM/CISC UNIX and Linux spoken GreyBeard and suspenders optional