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Upgrade/Replace Dell Poweredge R720 storage backplane

I have a Dell R720 (Server 2012 R2) with an 8 slot backplane and a PERC H710 raid controller. I'd like to replace the 8 slot backplane with a 16 slot. The raid controller should be fine with it. My question is... Will this be enough of a change requiring an OS reinstall, or should it just see it and make the appropriate updates? The backplane config is done prior to the OS loading doesn't it?

The other option is to add a second 8 slot backplane, but I believe having two backplanes requires 2 controller cards.

Anyone do this, or have experience with it. Appreciate your feedback.

Thanks

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Max Sando

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epworthcfs

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I was going to get the parts from a aftermarket reseller, most likely pulled from another server. If I add a second 8 slot backplane, will I need another controller?

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Max Sando

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epworthcfs

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Thanks for your input.