From owner-freebsd-stable@FreeBSD.ORG Wed Nov 7 14:19:52 2007 Return-Path: Delivered-To: freebsd-stable@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id D485816A46C for ; Wed, 7 Nov 2007 14:19:52 +0000 (UTC) (envelope-from freebsd@meijome.net) Received: from sigma.octantis.com.au (ns2.octantis.com.au [207.44.189.124]) by mx1.freebsd.org (Postfix) with ESMTP id A3D0613C4B3 for ; Wed, 7 Nov 2007 14:19:50 +0000 (UTC) (envelope-from freebsd@meijome.net) Received: (qmail 5805 invoked from network); 7 Nov 2007 08:19:43 -0600 Received: from 124-170-22-248.dyn.iinet.net.au (HELO localhost) (124.170.22.248) by sigma.octantis.com.au with (DHE-RSA-AES256-SHA encrypted) SMTP; 7 Nov 2007 08:19:43 -0600 Date: Thu, 8 Nov 2007 01:19:35 +1100 From: Norberto Meijome To: FreeBSD Stable ML Message-ID: <20071108011935.62bd23ce@meijome.net> X-Mailer: Claws Mail 3.0.2 (GTK+ 2.12.1; i386-portbld-freebsd7.0) Importance: high X-Priority: 1 (Highest) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Subject: Filesystems in 7.0 & reliability X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 07 Nov 2007 14:19:52 -0000 Hi everyone, I've been using 7 for a couple of weeks now on my work laptop (kickstarted by cooling issues while in 6.2, which seem to have largely gone in 7). I have a 100GB SATA drive in a Thinkpad Z60m with CPU: Intel(R) Pentium(R) M processor 2.00GHz (1995.02-MHz 686-class CPU) Origin = "GenuineIntel" Id = 0x6d8 Stepping = 8 Features=0xafe9fbff Features2=0x180 real memory = 1609433088 (1534 MB) avail memory = 1567780864 (1495 MB) I installed 7 on a normal UFS disk, but then migrated to having /usr in a UFS journaled partition , with a 1.5 GB journal on ad0s1h . I didn't have any issue that I could directly relate to it. I had more hangs than now (i reverted back to plain UFS due to too many lock ups). The lock ups didnt leave any message or error anywhere - it seemed as if the disk subsystem stopped accepting commands (or was waiting on something ...) - anything in memory would work just fine, but as soon as disk access was needed, it 'd stall. Something else i also noticed is that, after every crash, I couldn't just reboot and use my computer just fine, as I would have expected - maybe I'm wrong here. I had to go into single user mode, and run a fsck /dev/ad0s1f.journal . this takes about 4 minutes. Hardly any errors were ever found (as opposed to my non-journal partitions, which had files de-referenced ,etc.) So I suppose, in that regards, gjournal worked great.... but is the fsck needed?? I am also very interested in what zfs has to offer. How reliable is it? I am looking into using it both on my laptop, and as a filesystem for some large storage , possibly. thanks for any ideas, comments, pointers :) B _________________________ {Beto|Norberto|Numard} Meijome "Time exists so everything doesn't happen at once" Albert Einstein I speak for myself, not my employer. Contents may be hot. Slippery when wet. Reading disclaimers makes you go blind. Writing them is worse. You have been Warned.