A few "mere" years?. Wow.
TBH, with a RAID-10 array if one fails I can just pop a new one in and be good as new.
Anyway, it was fun chatting with you. Have a great night.
Actually not as good as new, it will take several hours to rebuild the array, the higher capacity the longer.
That's a downtime which could have been avoided if you cared to purchase proper server HDs.
Not to mention long-term costs and downtimes will go up because all your HDs will fail significantly quicker than they should.