Either the WD or the HGST should be decent, but I would look at Intel SRT caching as opposed to worrying too much about performance differences between the drives - SRT negates the drive performance failings quite well.
For my general/steam storage, I have a striped raid 0 of 2 x 2tb HGST and a...
Adding the 10 was already assuming I unplugged the boot mirror - would need to add another controller to plug 12 in! I was also thinking ahead, if in future I decide I want to up things, I can buy another 5 drives, create an identical 10 drive vdev and stripe the two, same as I have now with 2 x...
Hey chaps, long time reader, first time poster!
Ok, my NAS is currently this:
12 x 1.5TB Samsung (and a 13th floating elsewhere in the house)
Norco 4220 (Rackmount case with 20x SATA on backplanes)
2 x IBM M1015 flashed to IT mode
Dual Quad Xeon E5505
Tyan S7002 (dual CPU, Intel 6x SATA...