From owner-freebsd-fs@FreeBSD.ORG Wed Nov 26 10:12:57 2008 Return-Path: Delivered-To: freebsd-fs@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id ED5E5106564A for ; Wed, 26 Nov 2008 10:12:57 +0000 (UTC) (envelope-from avg@icyb.net.ua) Received: from hosted.kievnet.com (hosted.kievnet.com [193.138.144.10]) by mx1.freebsd.org (Postfix) with ESMTP id A445A8FC17 for ; Wed, 26 Nov 2008 10:12:57 +0000 (UTC) (envelope-from avg@icyb.net.ua) Received: from localhost ([127.0.0.1] helo=edge.pp.kiev.ua) by hosted.kievnet.com with esmtpa (Exim 4.62) (envelope-from ) id 1L5HOB-000Kl5-Jr for freebsd-fs@freebsd.org; Wed, 26 Nov 2008 12:12:55 +0200 Message-ID: <492D2122.4050203@icyb.net.ua> Date: Wed, 26 Nov 2008 12:12:50 +0200 From: Andriy Gapon User-Agent: Thunderbird 2.0.0.17 (X11/20081005) MIME-Version: 1.0 To: freebsd-fs@freebsd.org Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Subject: endless zpool scrub? 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: Wed, 26 Nov 2008 10:12:58 -0000 I noticed that zpool scrub on a certain pool runs "like forever". I decided to monitor its progress using periodic zpool status command, once in 10 seconds. Here's a snippet from the capture around an interesting point. Please notice two highlighted reports ('oops'). This is stable/7. Thank you in advance for insights/comments. pool: tank state: ONLINE scrub: scrub in progress, 78.87% done, 0h31m to go config: NAME STATE READ WRITE CKSUM tank ONLINE 0 0 0 ad6s2d ONLINE 0 0 0 errors: No known data errors pool: tank state: ONLINE scrub: scrub in progress, 78.94% done, 0h31m to go config: NAME STATE READ WRITE CKSUM tank ONLINE 0 0 0 ad6s2d ONLINE 0 0 0 errors: No known data errors pool: tank state: ONLINE scrub: scrub in progress, 78.97% done, 0h31m to go config: NAME STATE READ WRITE CKSUM tank ONLINE 0 0 0 ad6s2d ONLINE 0 0 0 errors: No known data errors pool: tank state: ONLINE scrub: scrub in progress, 0.00% done, 233h25m to go config: NAME STATE READ WRITE CKSUM tank ONLINE 0 0 0 ad6s2d ONLINE 0 0 0 ****oops, went back to 0%**** errors: No known data errors pool: tank state: ONLINE scrub: scrub in progress, 0.00% done, 259h47m to go config: NAME STATE READ WRITE CKSUM tank ONLINE 0 0 0 ad6s2d ONLINE 0 0 0 errors: No known data errors pool: tank state: ONLINE scrub: scrub in progress, 0.00% done, 186h50m to go config: NAME STATE READ WRITE CKSUM tank ONLINE 0 0 0 ad6s2d ONLINE 0 0 0 errors: No known data errors pool: tank state: ONLINE scrub: scrub in progress, 0.00% done, 186h45m to go config: NAME STATE READ WRITE CKSUM tank ONLINE 0 0 0 ad6s2d ONLINE 0 0 0 errors: No known data errors pool: tank state: ONLINE scrub: scrub in progress, 0.00% done, 306h30m to go config: NAME STATE READ WRITE CKSUM tank ONLINE 0 0 0 ad6s2d ONLINE 0 0 0 errors: No known data errors pool: tank state: ONLINE scrub: scrub in progress, 0.00% done, 292h19m to go config: NAME STATE READ WRITE CKSUM tank ONLINE 0 0 0 ad6s2d ONLINE 0 0 0 errors: No known data errors pool: tank state: ONLINE scrub: scrub in progress, 0.00% done, 231h16m to go config: NAME STATE READ WRITE CKSUM tank ONLINE 0 0 0 ad6s2d ONLINE 0 0 0 errors: No known data errors pool: tank state: ONLINE scrub: scrub in progress, 0.00% done, 283h55m to go config: NAME STATE READ WRITE CKSUM tank ONLINE 0 0 0 ad6s2d ONLINE 0 0 0 errors: No known data errors pool: tank state: ONLINE scrub: scrub in progress, 0.00% done, 232h8m to go config: NAME STATE READ WRITE CKSUM tank ONLINE 0 0 0 ad6s2d ONLINE 0 0 0 errors: No known data errors pool: tank state: ONLINE scrub: scrub in progress, 0.00% done, 164h37m to go config: NAME STATE READ WRITE CKSUM tank ONLINE 0 0 0 ad6s2d ONLINE 0 0 0 errors: No known data errors pool: tank state: ONLINE scrub: scrub in progress, 0.00% done, 183h40m to go config: NAME STATE READ WRITE CKSUM tank ONLINE 0 0 0 ad6s2d ONLINE 0 0 0 errors: No known data errors pool: tank state: ONLINE scrub: scrub in progress, 0.00% done, 166h21m to go config: NAME STATE READ WRITE CKSUM tank ONLINE 0 0 0 ad6s2d ONLINE 0 0 0 errors: No known data errors pool: tank state: ONLINE scrub: scrub stopped with 0 errors on Wed Nov 26 12:02:02 2008 config: NAME STATE READ WRITE CKSUM tank ONLINE 0 0 0 ad6s2d ONLINE 0 0 0 ****oops, scrub is reported as stopped**** errors: No known data errors pool: tank state: ONLINE scrub: scrub in progress, 0.00% done, 127h29m to go config: NAME STATE READ WRITE CKSUM tank ONLINE 0 0 0 ad6s2d ONLINE 0 0 0 errors: No known data errors -- Andriy Gapon