April 23, 200818 yr My last post was about the Intel D865GLCLK and adding a PCI SATA card for the 3 drives I just ordered The new question is do I gain enough to justify swapping this motherboard out with my other computer? It's a Foxconn 755FXK8AA-ERS. http://www.foxconnchannel.com/product/Motherboards/detail_spec.aspx?ID=en-us0000046 AMD 3000+ SiS 755FX + 964 - MuTIOL® 1GB/s bandwidth HyperStreaming™ Engine (HSE) 2 by SiS 964 & 2 by Silicon Image 3112 Serial ATA/150 2 UltraDMA 133 - supports up to 4 devices So goes having 4 dedicated SATA 150 ports and then the 4 133 UDMA (I have 4 133 drives) give me any real advantage? Is this worth it? Right now with just the 12 IDE drives I'm running parity 15MB/Sec... how much of a boost do you think I would get?
April 23, 200818 yr The first big question is compatibility. There's no problem with the Silicon Image 3112, but I don't know about Sis-based motherboards, and I would either wait for confirmation from others, or test it first yourself. The unRAID Hardware Compatibility page does not appear to list any SIS motherboards, but I could be wrong. I would not be surprised to see some Sis support in the kernel Tom includes, but I don't know if both the Sis755FX and the Sis964 are supported. You will probably want to add a LAN card, as the onboard Realtec is 10/100Mb/s only. The 2 SiI3112 SATA ports are not really dedicated, as that is a PCI chipset. The 2 Sis964 SATA ports have a direct connection to the Sis964 southbridge, so they certainly should be faster, would be the best for a parity drive. That should improve write performance, as it won't have to compete for IDE channel contention or PCI bus traffic. Single disk read performance should be about the same, perhaps a fraction faster, as SATA150's 150MB/s is roughly comparable to the PCI's 100 or 133MB/s.
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