From owner-freebsd-fs@FreeBSD.ORG Fri Sep 29 01:55:04 2006 Return-Path: X-Original-To: freebsd-fs@freebsd.org Delivered-To: freebsd-fs@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 691FC16A40F for ; Fri, 29 Sep 2006 01:55:04 +0000 (UTC) (envelope-from andrew@areilly.bpa.nu) Received: from omta02ps.mx.bigpond.com (omta02ps.mx.bigpond.com [144.140.83.154]) by mx1.FreeBSD.org (Postfix) with ESMTP id BC24243D45 for ; Fri, 29 Sep 2006 01:55:03 +0000 (GMT) (envelope-from andrew@areilly.bpa.nu) Received: from areilly.bpa.nu ([141.168.2.3]) by omta02ps.mx.bigpond.com with ESMTP id <20060929015501.ZJIF16502.omta02ps.mx.bigpond.com@areilly.bpa.nu> for ; Fri, 29 Sep 2006 01:55:01 +0000 Received: (qmail 47438 invoked by uid 501); 29 Sep 2006 01:53:52 -0000 Date: Fri, 29 Sep 2006 11:53:52 +1000 From: Andrew Reilly To: freebsd-fs@freebsd.org Message-ID: <20060929015352.GA46546@duncan.reilly.home> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.4.2.2i Subject: Doesn't *anyone* (else) use an atacontrol-built software RAID1 (mirror)? X-BeenThere: freebsd-fs@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Filesystems List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 29 Sep 2006 01:55:04 -0000 Hi, I've posted this sort of question to freebsd-questions and freebsd-stable, back on the 22nd, when I first noticed a problem. Much to my surprise, I've not received any answer at all, which makes me wonder if, perhaps, I'm the only one actually using this sort of configuration. If that's the case, then I'll happily drop it like a hot rock and try again with a GEOM mirror, or something like that. Here's the story: I just (a week ago) tried to do an in-place upgrade from RELENG_5 to RELENG_6 on a system that was running an ataraid (built with atacontrol) mirror on a pair of SATA disks. The root file system (256M) mounted fine, but fsck -p fails (unable to find a superblock, from memory) under the new kernel on my /usr partition, which is about 73G (most of the 80G of the disks). Falling back to the RELENG_5 /boot/kernel and fsck finds no problem with that filesystem. Is there a known behaviour change in ataraid behaviour between the two versions? The hardware is Intel P4, ICH6 SATA150, and a pair of Seagate 80G SATA drives. I can dig up more details if necessary. Full dmesg and config file details are included in the message to freebsd-questions on the 22nd, entitled "ataraid/fsck glitch on upgrade from 5.5 to 6-stable?" One odd-looking thing that I noticed (in RELENG_5, of course) is that fdisk ar0 says that cylinders=9729 heads=255 sectors/track=63, but fdisk ad4 (the first of the "real" SATA disks) says cylinders=155061, heads=16, sectors/track=63. Should these really be so different? I haven't tested it, but wouldn't this geometry difference make recovery with one dead drive kind of awkward? Is backup and start again from label/newfs (perhaps using gmirror instead of atacontrol?) my only option? Cheers, -- Andrew