From owner-freebsd-hardware@FreeBSD.ORG Mon Nov 8 01:22:51 2010 Return-Path: Delivered-To: hardware@FreeBSD.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id B4F7F106564A; Mon, 8 Nov 2010 01:22:51 +0000 (UTC) (envelope-from mi+thunw@aldan.algebra.com) Received: from vms173001pub.verizon.net (vms173001pub.verizon.net [206.46.173.1]) by mx1.freebsd.org (Postfix) with ESMTP id 935B98FC26; Mon, 8 Nov 2010 01:22:51 +0000 (UTC) Received: from [192.168.1.9] ([unknown] [173.70.194.135]) by vms173001.mailsrvcs.net (Sun Java(tm) System Messaging Server 7u2-7.02 32bit (built Apr 16 2009)) with ESMTPA id <0LBJ002Z9ID8PNH1@vms173001.mailsrvcs.net>; Sun, 07 Nov 2010 18:22:25 -0600 (CST) Message-id: <4CD742AC.40403@aldan.algebra.com> Date: Sun, 07 Nov 2010 19:22:04 -0500 From: "Mikhail T." User-Agent: Mozilla/5.0 (Windows; U; Windows NT 6.0; en-US; rv:1.9.2.12) Gecko/20101027 Lightning/1.0b2 Thunderbird/3.1.6 MIME-version: 1.0 To: hardware@FreeBSD.org X-Mailman-Approved-At: Mon, 08 Nov 2010 01:23:52 +0000 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit X-Content-Filtered-By: Mailman/MimeDel 2.1.5 Cc: sos@FreeBSD.org Subject: After a disk's disappearance, ar0 (raid5) hung... X-BeenThere: freebsd-hardware@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: General discussion of FreeBSD hardware List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 08 Nov 2010 01:22:51 -0000 All of a sudden, one of the three parts (ad8) of my ar0 threw a fit. As one might expect, the OS logged the event and told me, the array is now in degraded mode. Unfortunately, all I/O on the array is hanging. The machine is otherwise responsive, but processes trying to access the array hang in either "biord" or "getblk". I'm pretty sure, that, if I reboot, things will get back to normal. But I was hoping to buy some redundancy by using RAID5... If anybody is interested in any diagnostics -- let me know, I'll hold off rebooting for 12 hours. Yours, -mi