July 13, 20169 yr Hi all, Interesting problem here. I've got a Biostar TA970 motherboard running 6.1.9, and it has been running relatively problem free for a month or so now. So, I've got all 6 motherboard SATA ports filled with my array hard drives, and then this new 80 GB HD, a 64 GB SSD, and a 500GB HD all plugged into a https://smile.amazon.com/IO-Crest-Controller-Non-Raid-SI-PEX40064/dp/B00AZ9T3OU/ref=cm_cr_arp_d_product_top?ie=UTF8. Those three hard drives listed are all hopefully going to be mounted via unassigned devices. But now, after rebooting and connecting the newest HD (the 80GB, confirmed to be working), it doesn't show up in the list, and neither does the 500GB?! They are still listed in the BIOS, and I tried reseating the card and tried multiple slots, but I'm pretty much out of ideas now. I can't imagine what would cause the BIOS to be able to see the drives and not unRAID. Any ideas? The drives are not listed in the System Devices page under the Tools menu.
July 13, 20169 yr That card uses the Marvell 88SE9215 chip, might try a forum search to see if others have had issues. Post diagnostics so we can see if it is driver issue or perhaps something else.
July 13, 20169 yr Author Thanks for the response, no luck with the forum search or a Google search. I've attached the diagnostics. Thank you so much for taking the time to look into this! EDIT: The "fix common problems" plugin only found one error, and that was that I didn't have the powerdown plugin installed. EDIT2: Booting the machine from a recovery CD shows every drive as present and accessible, therefore I think it is safe to assume it is not an issue with the expansion card, but rather an unRAID issue. tower-diagnostics-20160713-0948.zip
July 13, 20169 yr Community Expert Marvell disk controller chipsets and virtualization issue: http://lime-technology.com/forum/index.php?topic=40683.0
July 13, 20169 yr Author Oh well that's disappointing, but I suppose that answers my problem. I do have virtualization enabled and no intention of disabling it. I'm getting pretty tired of this board so I think I might just replace the motherboard and sell it while I'm ahead. Thanks for all of the help!
July 13, 20169 yr Before you give up, have you tried the workaround (in blue in the first message in that thread)? It might work for you as it does for some others.
July 13, 20169 yr Author I did try the blue text, that alone did not work for me. What did work was disabling IOMMU in my BIOS. I left SVM enabled, so I still have HVM enabled and can still run my VMs, but I suppose I couldn't pass through an IOMMU device if I wanted to. Fortunately I wasn't doing that at the time so this band aid will work for the meantime. Thanks!
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