From mboxrd@z Thu Jan 1 00:00:00 1970 From: Andreas Dilger Subject: Re: Software raid0 will crash the file-system, when each disk is 5TB Date: Wed, 16 May 2007 08:04:52 -0600 Message-ID: <20070516140452.GC5286@schatzie.adilger.int> References: <659F626D666070439A4A5965CD6EBF406836C6@gazelle.ad.endace.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org To: Jeff Zheng Return-path: Received: from mail.clusterfs.com ([206.168.112.78]:44391 "EHLO mail.clusterfs.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750940AbXEPOEy (ORCPT ); Wed, 16 May 2007 10:04:54 -0400 Content-Disposition: inline In-Reply-To: <659F626D666070439A4A5965CD6EBF406836C6@gazelle.ad.endace.com> Sender: linux-fsdevel-owner@vger.kernel.org List-Id: linux-fsdevel.vger.kernel.org On May 16, 2007 11:09 +1200, Jeff Zheng wrote: > We are using two 3ware disk array controllers, each of them is connected > 8 750GB harddrives. And we build a software raid0 on top of that. The > total capacity is 5.5TB+5.5TB=11TB > > We use jfs as the file-system, we have a test application that write > data continuously to the disks. After writing 52 10GB files, jfs > crashed. And we are not able to recover it, fsck doesn't recognise it > anymore. > We then tried xfs, same application, lasted a little longer, but gives > kernel crash later. Check if your kernel has CONFIG_LBD enabled. The kernel doesn't check if the block layer can actually write to a block device > 2TB. Cheers, Andreas -- Andreas Dilger Principal Software Engineer Cluster File Systems, Inc.