Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751993Ab1BFKQ7 (ORCPT ); Sun, 6 Feb 2011 05:16:59 -0500 Received: from lucidpixels.com ([75.144.35.66]:42666 "EHLO lucidpixels.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751806Ab1BFKQ5 (ORCPT ); Sun, 6 Feb 2011 05:16:57 -0500 Date: Sun, 6 Feb 2011 05:16:57 -0500 (EST) From: Justin Piszcz To: Stan Hoeppner cc: "Dr. David Alan Gilbert" , Emmanuel Florac , linux-kernel@vger.kernel.org, linux-scsi@vger.kernel.org, linux-net@vger.kernel.org, Alan Piszcz Subject: Re: Supermicro X8DTH-6: Only ~250MiB/s from RAID<->RAID over 10GbE? In-Reply-To: <4D4E127D.3060105@hardwarefreak.com> Message-ID: References: <20110205214550.3cb0f0d1@galadriel2.home> <20110205220621.GB17347@gallifrey> <4D4DE34E.7010308@hardwarefreak.com> <4D4E127D.3060105@hardwarefreak.com> User-Agent: Alpine 2.00 (DEB 1167 2008-08-23) MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII; format=flowed Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1200 Lines: 31 On Sat, 5 Feb 2011, Stan Hoeppner wrote: > Justin Piszcz put forth on 2/5/2011 7:08 PM: > >> Overall performance is good, but now I need to figure out how to tweak the >> network and/or disk paths so I can achieve > 1Gbyte/sec, as the RAID-0s can >> read and write > 1.2Gbyte/sec. >> >> Has anyone with 10GbE <-> 10GbE been able to transfer at or near line rate >> with a single connection, or > 700MiB/s with multiple connections? Problem >> I worry about with creating multiple connections between two machines it will >> create contention within the RAID that is being read from.. > > Are you trying to maximize this for the sake of maximizing it, or do you have an > actual application or work flow process that needs to be able to transfer a > single large file via NFS at >1 GB/s throughput? Workflow process- Migrate data from old/legacy RAID sets to new ones, possibly also 2TB->3TB, so the faster the transfer speed, the better. Justin. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/