Planning for a 22 drive build (20 data, 1 parity, 1 cache)

Proposed drives:

20 x WD20EARS for data

2 x WD2001FASS for parity/cache (or would 2 x WD2002FAEX be better considering the mobo below?)

 

These components are finalized:

 

Mobo: Supermicro X8SIL-F

CPU: Intel i3 550

 

So what PSU? I was thinking either Corsair Gold AX750 or Gold AX850.

 

Thanks

I would recommend using EARS drives all around.  Having a parity drive faster than the data drives won't help you in most cases.  The write to the server will still run at the speed of the slowest drive involved.  A faster cache drive does sort of make sense, but I still contend that the price difference between the green and black drives are not worth the performance difference.  You can expect to see 60 - 70 mb/s writes to a green cache drive, and a black cache drive will only add a few mb/s to that.  Not worth it in my opinion.

 

For the PSU I would recommend a Corsair 650W.  The 750 or 850 will be overkill.