Received: from localhost (unknown [200.46.204.187]) by postgresql.org (Postfix) with ESMTP id D35772E31B8 for ; Thu, 17 Jan 2008 19:31:12 -0400 (AST) Received: from postgresql.org ([200.46.204.71]) by localhost (mx1.hub.org [200.46.204.187]) (amavisd-maia, port 10024) with ESMTP id 91880-06 for ; Thu, 17 Jan 2008 19:30:59 -0400 (AST) Received: from cassarossa.samfundet.no (cassarossa.samfundet.no [129.241.93.19]) by postgresql.org (Postfix) with ESMTP id B1D3B2E0070 for ; Thu, 17 Jan 2008 19:31:03 -0400 (AST) Received: from trofast.ipv6.sesse.net ([2001:700:300:1803:20e:cff:fe36:a766] helo=trofast.sesse.net) by cassarossa.samfundet.no with esmtps (TLS-1.0:RSA_AES_256_CBC_SHA1:32) (Exim 4.63) (envelope-from ) id 1JFeCJ-0005x6-4D for pgsql-performance@postgresql.org; Fri, 18 Jan 2008 00:30:59 +0100 Received: from root by trofast.sesse.net with local (Exim 4.68) (envelope-from ) id 1JFeCF-0002yj-NZ for pgsql-performance@postgresql.org; Fri, 18 Jan 2008 00:30:55 +0100 Date: Fri, 18 Jan 2008 00:30:55 +0100 From: "Steinar H. Gunderson" To: pgsql-performance@postgresql.org Subject: Re: [OT] RAID controllers blocking one another? Message-ID: <20080117233055.GA11300@uio.no> Mail-Followup-To: pgsql-performance@postgresql.org References: <264855a00801171217m4e6211e6y5f4d0e12ce86db5c@mail.gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: X-Operating-System: Linux 2.6.20.4 on a x86_64 User-Agent: Mutt/1.5.17+20080114 (2008-01-14) X-Virus-Scanned: Maia Mailguard 1.0.1 X-Archive-Number: 200801/142 X-Sequence-Number: 28381 On Thu, Jan 17, 2008 at 03:07:02PM -0600, Scott Marlowe wrote: > Sounds like they're sharing something they shouldn't be. I'm not real > familiar with PCI-express. Aren't those the ones that use up to 16 > channels for I/O? Can you divide it to 8 and 8 for each PCI-express > slot in the BIOS maybe, or something like that? PCI-E is a point-to-point-system. /* Steinar */ -- Homepage: http://www.sesse.net/