From mboxrd@z Thu Jan 1 00:00:00 1970 From: Stan Hoeppner Subject: Re: high throughput storage server? Date: Mon, 14 Mar 2011 07:27:00 -0500 Message-ID: <4D7E0994.3020303@hardwarefreak.com> References: <20110215044434.GA9186@septictank.raw-sewage.fake> <4D6AC288.20101@wildgooses.com> <4D6DC585.90304@gmail.com> <20110313201000.GA14090@infradead.org> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <20110313201000.GA14090@infradead.org> Sender: linux-raid-owner@vger.kernel.org To: Christoph Hellwig Cc: Roberto Spadim , Drew , Mdadm List-Id: linux-raid.ids Christoph Hellwig put forth on 3/13/2011 3:10 PM: > Btw, XFS has been used for >10GB/s throughput systems for about the last > 5 years. The big issues is getting hardware that can reliably sustain > it - if you have that using it with Linux and XFS is not an problem at I already noted this far back in the thread Christoph, but it is worth repeating. And it carries more weight when you, a Linux Kernel dev, state this, than when I do. So thanks for adding your input. :) > all. Note that with NUMA system you also have to thing about your > intereconnect bandwith as a limiting factor for buffered I/O, not just > the storage subsystem. Is this only an issue with multi-chassis cabled NUMA systems such as Altix 4000/UV and the (discontinued) IBM x86 NUMA systems (x440/445) with their relatively low direct node-node bandwidth, or is this also of concern with single chassis systems with relatively much higher node-node bandwidth, such as the AMD Opteron systems, specifically the newer G34, which have node-node bandwidth of 19.2GB/s bidirectional? -- Stan