From owner-freebsd-fs@FreeBSD.ORG Sat Aug 9 12:56:09 2008 Return-Path: Delivered-To: freebsd-fs@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id AC0A41065671 for ; Sat, 9 Aug 2008 12:56:09 +0000 (UTC) (envelope-from morganw@chemikals.org) Received: from warped.bluecherry.net (unknown [IPv6:2001:440:eeee:fffb::2]) by mx1.freebsd.org (Postfix) with ESMTP id 1F5EC8FC14 for ; Sat, 9 Aug 2008 12:56:09 +0000 (UTC) (envelope-from morganw@chemikals.org) Received: from volatile.chemikals.org (unknown [74.193.170.223]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client did not present a certificate) by warped.bluecherry.net (Postfix) with ESMTPSA id 28B7F86A2975; Sat, 9 Aug 2008 07:56:06 -0500 (CDT) Received: from localhost (morganw@localhost [127.0.0.1]) by volatile.chemikals.org (8.14.2/8.14.2) with ESMTP id m79Cu0n3001553; Sat, 9 Aug 2008 07:56:01 -0500 (CDT) (envelope-from morganw@chemikals.org) Date: Sat, 9 Aug 2008 07:56:00 -0500 (CDT) From: Wes Morgan To: Peter Schuller In-Reply-To: <200808090917.34149.peter.schuller@infidyne.com> Message-ID: References: <200808090020.04315.peter.schuller@infidyne.com> <18588.64214.354495.804458@almost.alerce.com> <200808090917.34149.peter.schuller@infidyne.com> User-Agent: Alpine 1.10 (BSF 962 2008-03-14) MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII; format=flowed Cc: freebsd-fs@freebsd.org Subject: Re: ZFS Advice X-BeenThere: freebsd-fs@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Filesystems List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 09 Aug 2008 12:56:09 -0000 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.