From owner-freebsd-fs@FreeBSD.ORG Mon Oct 29 08:29:57 2012 Return-Path: Delivered-To: freebsd-fs@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id BB7A2E40; Mon, 29 Oct 2012 08:29:57 +0000 (UTC) (envelope-from mavbsd@gmail.com) Received: from mail-lb0-f182.google.com (mail-lb0-f182.google.com [209.85.217.182]) by mx1.freebsd.org (Postfix) with ESMTP id EF8088FC0A; Mon, 29 Oct 2012 08:29:56 +0000 (UTC) Received: by mail-lb0-f182.google.com with SMTP id b5so3656684lbd.13 for ; Mon, 29 Oct 2012 01:29:55 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=sender:message-id:date:from:user-agent:mime-version:to:cc:subject :references:in-reply-to:content-type:content-transfer-encoding; bh=qAFQtKpYnexYj8OkfJqKUNR17Iv0h9pxILck0ukBQ/U=; b=KYbbYK/2rhAEl6tafnx+3NVjzlnz0LHuFJ++HgHIoAI+8oN0PeI+a86OToH1jiw43Z rCiWJ5/7NfxJz/Z+W1O9ElMsUCqg7CU4fdPLGzDrvoxLsLSFW+1v2Qcx3BwmWWcDEvZo 2RSDMl0jxpn01x5UzQs0AwPYv3AM6iDMQXjFdpy6Zc0mFaUbn7NCGTJuATbvEVO8SZ5U XyqnmW3ZgjoWc9jVColHQEyVHIFJ9y1BT1l2GiA5/tLG53+EMnXOIw8O7O68f7IovwSl aYlm9oYRHj5BQKC9XrDRREmnEqWxcAmLAsEbBmq6P69QsQ/na17Uz50TJqqfJ2jKRvIb ZWlA== Received: by 10.152.105.174 with SMTP id gn14mr26378858lab.55.1351499395645; Mon, 29 Oct 2012 01:29:55 -0700 (PDT) Received: from mavbook.mavhome.dp.ua (mavhome.mavhome.dp.ua. [213.227.240.37]) by mx.google.com with ESMTPS id gk11sm2813708lab.3.2012.10.29.01.29.54 (version=TLSv1/SSLv3 cipher=OTHER); Mon, 29 Oct 2012 01:29:55 -0700 (PDT) Sender: Alexander Motin Message-ID: <508E3E81.9010209@FreeBSD.org> Date: Mon, 29 Oct 2012 10:29:53 +0200 From: Alexander Motin User-Agent: Mozilla/5.0 (X11; FreeBSD amd64; rv:13.0) Gecko/20120628 Thunderbird/13.0.1 MIME-Version: 1.0 To: Lawrence Stewart Subject: Re: graid often resyncs raid1 array after clean reboot/shutdown References: <508E0C3F.8080602@freebsd.org> In-Reply-To: <508E0C3F.8080602@freebsd.org> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Cc: freebsd-fs@freebsd.org X-BeenThere: freebsd-fs@freebsd.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: Filesystems List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 29 Oct 2012 08:29:57 -0000 Hi. On 29.10.2012 06:55, Lawrence Stewart wrote: > I have a fairly new HP Compaq 8200 Elite desktop PC with 2 x 1TB Seagate > ST1000DM003 HDDs in raid1 using the on-board Intel Matrix RAID > controller. The system is configured to boot from ZFS off the raid1 > array, and I use it as a KDE GUI (with on-cpu GPU + KMS) desktop. > > Everything works great, except that after a "shutdown -r now" of the > system, graid almost always (I believe I've noted a few times where > everything comes up fine) detects one of the disks in the array as stale > and does a full resync of the array over the course of a few hours. > Here's an example of what I see when starting up: From log messages it indeed looks like result of unclean shutdown. I've never seen such problem with UFS, but I never tested graid with ZFS. I guess there may be some difference in shutdown process that makes RAID metadata to have dirty flag on reboot. I'll try to reproduce it now. -- Alexander Motin