From owner-freebsd-fs@FreeBSD.ORG Thu Jun 10 11:54:46 2010 Return-Path: Delivered-To: fs@FreeBSD.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id E07E2106564A for ; Thu, 10 Jun 2010 11:54:46 +0000 (UTC) (envelope-from ticso@cicely7.cicely.de) Received: from raven.bwct.de (raven.bwct.de [85.159.14.73]) by mx1.freebsd.org (Postfix) with ESMTP id 4A6238FC1C for ; Thu, 10 Jun 2010 11:54:45 +0000 (UTC) Received: from mail.cicely.de ([10.1.1.37]) by raven.bwct.de (8.13.4/8.13.4) with ESMTP id o5ABsiTj010250 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK); Thu, 10 Jun 2010 13:54:44 +0200 (CEST) (envelope-from ticso@cicely7.cicely.de) Received: from cicely7.cicely.de (cicely7.cicely.de [10.1.1.9]) by mail.cicely.de (8.14.3/8.14.3) with ESMTP id o5ABsWt8061742 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO); Thu, 10 Jun 2010 13:54:32 +0200 (CEST) (envelope-from ticso@cicely7.cicely.de) Received: from cicely7.cicely.de (localhost [127.0.0.1]) by cicely7.cicely.de (8.14.2/8.14.2) with ESMTP id o5ABsWZJ080841; Thu, 10 Jun 2010 13:54:32 +0200 (CEST) (envelope-from ticso@cicely7.cicely.de) Received: (from ticso@localhost) by cicely7.cicely.de (8.14.2/8.14.2/Submit) id o5ABsVw4080840; Thu, 10 Jun 2010 13:54:31 +0200 (CEST) (envelope-from ticso) Date: Thu, 10 Jun 2010 13:54:31 +0200 From: Bernd Walter To: Jeremy Chadwick Message-ID: <20100610115429.GQ72453@cicely7.cicely.de> References: <20100609162627.11355zjzwnf7nj8k@webmail.leidinger.net> <20100609144355.GL72453@cicely7.cicely.de> <20100610112345.644960lrau3mxfk0@webmail.leidinger.net> <20100610102350.GP72453@cicely7.cicely.de> <20100610102918.GA69770@icarus.home.lan> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20100610102918.GA69770@icarus.home.lan> X-Operating-System: FreeBSD cicely7.cicely.de 7.0-STABLE i386 User-Agent: Mutt/1.5.11 X-Spam-Status: No, score=-2.9 required=5.0 tests=ALL_TRUSTED=-1, BAYES_00=-1.9, T_RP_MATCHES_RCVD=-0.01 autolearn=unavailable version=3.3.0 X-Spam-Checker-Version: SpamAssassin 3.3.0 (2010-01-18) on spamd.cicely.de Cc: Alexander Leidinger , ticso@cicely.de, fs@FreeBSD.org Subject: Re: Do we want a periodic script for a zfs scrub? X-BeenThere: freebsd-fs@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: ticso@cicely.de List-Id: Filesystems List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 10 Jun 2010 11:54:47 -0000 On Thu, Jun 10, 2010 at 03:29:18AM -0700, Jeremy Chadwick wrote: > You're running an 8.0 release candidate. There have been some changes > to scrubbing and other whatnots with ZFS between then and now. I'd > recommend trying RELENG_8 and seeing if the behaviour remains. You > don't have to use ahci.ko (you can stick with ataahci.ko). Good to know. Updating to more recent 8 or maybe current is already on my TODO list for ataahci, but since the system runs it is quite low. My wishlist also has reboot persistent cache devices. For me they work prety well, but are empty after reboot and it takes several days to fill. But so far noone could tell me if it has been changed so far. > By "behaviour" I'm referring to how long the scrub is taking. The > variance you see in ETA is normal. You can verify that things aren't > stalled blindly by using "zpool iostat" (there should be fairly > intensive I/O). -- B.Walter http://www.bwct.de Modbus/TCP Ethernet I/O Baugruppen, ARM basierte FreeBSD Rechner uvm.