Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S269631AbUICMVI (ORCPT ); Fri, 3 Sep 2004 08:21:08 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S269661AbUICMUj (ORCPT ); Fri, 3 Sep 2004 08:20:39 -0400 Received: from the-village.bc.nu ([81.2.110.252]:26003 "EHLO localhost.localdomain") by vger.kernel.org with ESMTP id S269663AbUICMQP (ORCPT ); Fri, 3 Sep 2004 08:16:15 -0400 Subject: Re: md RAID over SATA performance From: Alan Cox To: "J.A. Magallon" Cc: Lista Linux-Kernel , Jeff Garzik In-Reply-To: <1094169937l.17931l.0l@werewolf.able.es> References: <1094169937l.17931l.0l@werewolf.able.es> Content-Type: text/plain Content-Transfer-Encoding: 7bit Message-Id: <1094210023.7533.26.camel@localhost.localdomain> Mime-Version: 1.0 X-Mailer: Ximian Evolution 1.4.6 (1.4.6-2) Date: Fri, 03 Sep 2004 12:13:44 +0100 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 590 Lines: 14 On Gwe, 2004-09-03 at 01:05, J.A. Magallon wrote: > Problem is that i get really poor performance. A single drive gives about > 57 Mb/s, and a raid1 with two just gives about 64 Mb/s (measured with > hdparm -tT). With the six drives: Looks about right. Whats your total PCI bus bandwidth, whats your VIA V-Link bandwidth between the bridges ? - 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/