Alex Stapleton wrote:
Your going to have to factor in the increased failure rate in your cost measurements, including any downtime or performance degradation whilst rebuilding parts of your RAID array. It depends on how long your planning for this system to be operational as well of course.

If we go 32xRAID10, rebuild time should be the same as rebuild time in a 4xRAID10 system. Only the hard drive that was replaced needs rebuild -- not the entire array.

And yes, definitely need a bunch of drives lying around as spares.

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