June 30, 201412 yr I'm building Raj's 20 drive rackmount beast and accidentally bought a Norco 4020 instead of a 4220. I realized this last night as I was putting it all together and tried to connect the drive planes to the PCI cards. The drive planes on the 4020 have four SATA connectors while the 4220 have SFF8087 SAS connections. I am debating between returning it and getting a 4220 or just buying some breakout cables. My questions are: Is there a performance hit to staying with the 4020 and buying some SFF8087 to SATA breakout cables? If not, would these work? http://www.newegg.com/Product/Product.aspx?Item=N82E16816132039&cm_re=sas_to_sata_breakout-_-16-132-039-_-Product What is the difference between a forward breakout cable and a reverse one? These are my PCI cards: http://www.superbiiz.com/detail.php?name=AOC-SASMV8&title=Supermicro-AOC-SASLP-MV8-8-Port-SAS-SATA-Add-on-Card Thanks in advance for any help. I built an unraid server 3-4 years ago but that is my only building experience and I seem to have forgotten everything I learned back then.
June 30, 201412 yr There should not be a performance difference. A forward breakout cable is what you want. A reverse breakout cable will not work for you. The use case for a reverse breakout cable is to take the four SATA ports on the motherboard and connect to a 4220 with SFF8087 backplane.
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