OK the history is:
Dell 650sc poweredge server circa 2003. Perc4 raid card.
8 months ago one of the original drives failed, we replaced the set with new 147GB fujitsu drives. 2 months later we replaced a failing drive that fujitsu replaced under warranty.
A week ago we saw that the disk 2 of the mirror array was failing, disk 1 was ok and we planned to warranty replace the bad drive (not sure if this failure was the same drive that was replaced or the original replacement)
Two days ago for some reason unknown, the server was restarted, and it was a hot July day, and the aircon was not on in that room, upon restart we only saw error messages and could not start windows server. Messages include: alert, back system fan undected, hit F1 , Configuration NVRAM and drives mismatch (normal mismatch), and `no boot device detected`. Upon inspecting, the hardware fan is dead. When opening the perc raid interface the disk 1 now is failed.
Will there be any possibility of repair? Or shall we spend the time replacing the array and start reinstalling everything from scratch?