Date: Sat, 30 Aug 2008 09:17:03 -0700 From: Jeremy Chadwick <koitsu@FreeBSD.org> To: Wes Morgan <morganw@chemikals.org> Cc: freebsd-fs@freebsd.org Subject: Re: ZFS Advice Message-ID: <20080830161703.GA6133@icarus.home.lan> In-Reply-To: <alpine.BSF.1.10.0808300718200.30274@ibyngvyr.purzvxnyf.bet> References: <alpine.BSF.1.10.0808051842550.93088@ibyngvyr.purzvxnyf.bet> <200808090020.04315.peter.schuller@infidyne.com> <18588.64214.354495.804458@almost.alerce.com> <200808090917.34149.peter.schuller@infidyne.com> <alpine.BSF.1.10.0808090735230.93115@ibyngvyr.purzvxnyf.bet> <alpine.BSF.1.10.0808300718200.30274@ibyngvyr.purzvxnyf.bet>
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On Sat, Aug 30, 2008 at 07:19:53AM -0500, Wes Morgan wrote: > On Sat, 9 Aug 2008, Wes Morgan wrote: > >> On Sat, 9 Aug 2008, Peter Schuller wrote: >> >>>> Or, it could be that a UIO slot is specifically a PCI-Ex8 slot? You >>>> can buy risers that convert "1U PCI-E (x16) to 1 UIO and 1 PCI-E " >>> >>> http://www.supermicro.com/products/nfo/UIO_cards.cfm >>> >>> This one actually says in the clear: >>> >>> "8-Lane PCI-Express interface (Supermicro UIO slot)" >>> >>> My guess is one of the following: >>> >>> * It means nothing but "PCI-E", and the UIO stuff is just marketing BS. >>> >>> * It means "extra PCI-E", and the UIO stuff is just marketing BS. >>> >>> * (Based on the grapical animation on the UIO page) They actually do have a >>> special slot on their motherboard for use with their special UIO card which >>> then provides a few extra PCI-E slots. The mentioning of UIO on pages >>> describing standard PCI-E cards is just marketing BS resulting from the >>> technically correct fact that they can be used with their UIO card. >>> >>> If I don't find specific information to the contrary I'll probably >>> chance it >>> and see. >> >> As you say, it's hard to tell from the SuperMicro page. LSI has this card: >> >> http://lsi.com/storage_home/products_home/host_bus_adapters/sas_hbas/lsisas3081er/index.html >> http://www.newegg.com/Product/Product.aspx?Item=N82E16816118092 >> >> Which is their official card with the same chipset. The slots on both >> the SuperMicro and the LSI cards look mighty similar. The only obvious >> difference is the little right-angle thing next to the PCI-E interface. >> I'm very interested to see if it works out. If I wasn't going to be >> away for a few weeks I'd try to abuse CDW's return policy to give it a >> test. > > Has anyone, by chance, tried one of those SuperMicro UIO cards in a PCIe > slot yet? If not, I'm going to give it a try unless someone is sure it > won't work. I don't think it'll work. If you check Supermicro's site under the Accessory section, you can find some of their riser cards which convert the UIO slots into either PCI-X or PCIe depending upon what you want/need. Searching Google for higher-quality images of the risers indicates that the wiring/pinout is indeed different/custom, which is why the riser is needed. -- | Jeremy Chadwick jdc at parodius.com | | Parodius Networking http://www.parodius.com/ | | UNIX Systems Administrator Mountain View, CA, USA | | Making life hard for others since 1977. PGP: 4BD6C0CB |
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