Has anyone experience Mac Pro Server RAID card failure?

RAID card of our company's Mac Pro server broke twice in less than 12 months, resulting in our server being out of office for more than 11 weeks for repair. I really would like to know if we are just unlucky or if this kind of hardware failure happened also to other people?
Thanks for your help.

Hi
I know it's no consolation to you but judging from my experience I think you've been unlucky.
I've installed Apple RAID Cards in numerous XServes and MacPros at many sites and apart from the rare battery failure they've all gone OK and are still working as intended AFAIK.
HTH?
Tony

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