Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S965880AbXEPVoY (ORCPT ); Wed, 16 May 2007 17:44:24 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S965271AbXEPVoO (ORCPT ); Wed, 16 May 2007 17:44:14 -0400 Received: from 203-97-71-235.dsl.clear.net.nz ([203.97.71.235]:62173 "EHLO gazelle.ad.endace.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S965158AbXEPVoN convert rfc822-to-8bit (ORCPT ); Wed, 16 May 2007 17:44:13 -0400 Content-class: urn:content-classes:message MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 8BIT X-MimeOLE: Produced By Microsoft Exchange V6.5 Subject: RE: Software raid0 will crash the file-system, when each disk is 5TB Date: Thu, 17 May 2007 09:44:10 +1200 Message-ID: <659F626D666070439A4A5965CD6EBF406B3327@gazelle.ad.endace.com> In-Reply-To: X-MS-Has-Attach: X-MS-TNEF-Correlator: Thread-Topic: Software raid0 will crash the file-system, when each disk is 5TB Thread-Index: AceX5Uc3Dy9Im9CNRnOxD/rModHfwAAHd86w References: <659F626D666070439A4A5965CD6EBF406836C6@gazelle.ad.endace.com> <20070516140452.GC5286@schatzie.adilger.int> From: "Jeff Zheng" To: , "Andreas Dilger" Cc: , Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1229 Lines: 38 You will definitely meet the same problem. As very large hardware disk becomes more and more popular, this will become a big issue for software raid. Jeff -----Original Message----- From: david@lang.hm [mailto:david@lang.hm] Sent: Thursday, 17 May 2007 6:04 a.m. To: Andreas Dilger Cc: Jeff Zheng; linux-kernel@vger.kernel.org; linux-fsdevel@vger.kernel.org Subject: Re: Software raid0 will crash the file-system, when each disk is 5TB my experiance is taht if you don't have CONFIG_LBD enabled then the kernel will report the larger disk as 2G and everything will work, you just won't get all the space. plus he seems to be crashing around 500G of data and finally (if I am reading the post correctly) if he configures the drives as 4x2.2TB=11TB instead of 2x5.5TB=11TB he doesn't have the same problem. I'm getting ready to setup a similar machine that will have 3x10TB (3 15 disk arrays with 750G drives), but won't be ready to try this for a few more days. David Lang - 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/