On Sun, Jul 29, 2012 at 3:00 PM, Stirling Westrup <swestrup@xxxxxxxxx> wrote: > On Sun, Jul 29, 2012 at 5:24 AM, Stan Hoeppner <stan@xxxxxxxxxxxxxxxxx> wrote: >> On 7/28/2012 6:41 PM, Stirling Westrup wrote: >> >>> Okay, it looks like its a known hardware chipset problem, and was >>> first reported 6-months ago. >>> >>> It affects all PCI cards in Asus Sandy-Bridge Motherboards. No known >>> fix as of yet. >>> >>> https://lkml.org/lkml/2012/1/30/216 >> >> At least our discussion got you looking in multiple directions, one of >> which led you to this information. >> >> Given the problem is related to legacy PCI INTx sharing/routing, whether >> on the PCI or PCIe bus, I'd recommend you step up to a high quality PCIe >> x8 SAS/SATA HBA, such as the LSI 9211-8i PCIe x8, which supports MSI-X >> and should instantly solve your problem. >> http://www.newegg.com/Product/Product.aspx?Item=N82E16816118112 >> >> You'll need two breakout cables: >> http://www.newegg.com/Product/Product.aspx?Item=N82E16816116098 >> >> This solution will set you back almost $300 USD. I just did some >> research on the Syba 4 port SiI 3124 PCIe x1 card. The SiI 3124 is a >> native PCI/X chip, thus the board uses a PCI-X to PCIe bridge chip which >> hides under the large heatsink. Thus this card will not work, as it >> uses legacy PCI interrupts: >> http://www.newegg.com/Product/Product.aspx?Item=N82E16816124027 >> >> I also looked at the Syba and Adaptec Marvell PCIe x1 SATAII 4 port >> cards. While the Marvell chip is native PCIe I'm unable to confirm it >> supports MSI/X. And given these cards run $80-90, that's $160-180 for >> two of them. The LSI above is pretty much guaranteed to work for ~$100 >> more. What's your reputation with your client worth? >> >> Speaking of which, don't even look at the $110 8 port Supermicro >> SAS/SATA controller. It uses the Marvell SAS chip. Although the chip >> itself is fine and works with Windows, the Linux driver *will* eat your >> data, all the way up to kernel 3.4. I've personally rectified this >> situation for a half dozen users who bought this SM SAS board on price >> alone. I converted them all to LSI HBAs and no problems since. The >> solution cost them 2-3x as much but they're all happy because it simply >> works reliably, and fast. >> >> Or you can start swapping $150+ motherboards until you find one that >> works with those $20 Syba 3114 cards. But then you need to ask >> yourself, how much is your time worth. You could easily burn 20 or more >> hours going that route. >> >> Get the LSI and be done with this. >> > > The above sounds like excellent advice, and you have saved me several > hours of perusing catalogs trying to figure out what to buy to replace > the two SiI cards. I greatly appreciate the help, and I have sent off > an order to NewEgg for the LSI board and cables. > Just wanted to let everyone know that the new hardware arrived yesterday, and today my two raid's finished rebuilding without any problems at all, and at a fair bit higher speed than before. So, thanks for all your help, in getting my backup system operational. -- To unsubscribe from this list: send the line "unsubscribe linux-ide" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
