Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261206AbUDGXNd (ORCPT ); Wed, 7 Apr 2004 19:13:33 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261234AbUDGXNd (ORCPT ); Wed, 7 Apr 2004 19:13:33 -0400 Received: from note.orchestra.cse.unsw.EDU.AU ([129.94.242.24]:5014 "EHLO note.orchestra.cse.unsw.EDU.AU") by vger.kernel.org with ESMTP id S261206AbUDGXNc (ORCPT ); Wed, 7 Apr 2004 19:13:32 -0400 From: Neil Brown To: Lars Marowsky-Bree Date: Thu, 8 Apr 2004 09:13:22 +1000 MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Message-ID: <16500.35602.13336.290506@cse.unsw.edu.au> Cc: Gewj , linux-kernel@vger.kernel.org Subject: Re: A puzzling thing about RAID5: syslogd write the log success but another process can not read the /var/log/messages In-Reply-To: message from Lars Marowsky-Bree on Wednesday April 7 References: <407400F1.8090809@sinosoft.com.cn> <20040407145126.GA23517@marowsky-bree.de> X-Mailer: VM 7.18 under Emacs 21.3.1 X-face: [Gw_3E*Gng}4rRrKRYotwlE?.2|**#s9D On 2004-04-07T21:24:01, > Gewj said: > > > hammm,tonight is funny because I got a puzzling thing just as.... > > > > my setup is a two-scsi-disk raid5 configuration... > > Impossible. RAID5 requires at least three disks. Wrong. RAID5 works fine with just two drives. Try it. NeilBrown (I admit that there isn't a lot of point doing raid5 with two drives as raid1 should provide identical functionality with better performance, but it makes an interesting base-line for performances tests on N-drive arrays). - 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/