Bad drive in RAID array

My in-laws have an older Dell desktop PC running XP and recently are getting a message telling them that one of the drivers in the raid array is bad. It looks like there are 2 drives '0' and '1' and the #1 is the bad drive. They are both the stock 250GB WD hard drives that came with the machine. Do I need to replace it with the exact same drive or will any SATA 250GB work? Let me know if more info is needed. Thanks
 

jobeard

Posts: 13,853   +1,754
Check the specs of the failed hd (ie make/model) online to verify *IF* yours is hot pluggable - - you should match the specs
of the failed device.