Don't worry, I think I panicked for nothing as under another look it seems SCSI... now I feel stupid. But there is still the matter of the System/36 it was commented a few posts before; while it still maintains my interest for long-term usage, my system works appropiately and therefore there is not the urge I have with the AS/400.YOUR RIGHT! I DIDNT BOTHER TO READ! Sorry @RetroAND. I guess I made the bonehead assumption we were still talking IBM Microchannel. Your looking for an actual Spinning disk component replacement.
Sorry to steal your hope away...
Sorry