From: Andreas Dilger Subject: Re: >16TB issues Date: Tue, 21 Jul 2009 10:10:18 -0600 Message-ID: <20090721161018.GH4231@webber.adilger.int> References: <150c16850907021523p25ddae32v2eeea54418d2e6d5@mail.gmail.com> <20090703143729.GJ20343@webber.adilger.int> <150c16850907161104j5e059baep988c5f04a0552c8c@mail.gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: QUOTED-PRINTABLE Cc: linux-ext4@vger.kernel.org To: Justin Maggard Return-path: Received: from sca-es-mail-1.Sun.COM ([192.18.43.132]:47501 "EHLO sca-es-mail-1.sun.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752624AbZGUQK7 (ORCPT ); Tue, 21 Jul 2009 12:10:59 -0400 Received: from fe-sfbay-09.sun.com ([192.18.43.129]) by sca-es-mail-1.sun.com (8.13.7+Sun/8.12.9) with ESMTP id n6LGAq3A002003 for ; Tue, 21 Jul 2009 09:10:52 -0700 (PDT) Content-disposition: inline Received: from conversion-daemon.fe-sfbay-09.sun.com by fe-sfbay-09.sun.com (Sun Java(tm) System Messaging Server 7u2-7.02 64bit (built Apr 16 2009)) id <0KN500B00379HB00@fe-sfbay-09.sun.com> for linux-ext4@vger.kernel.org; Tue, 21 Jul 2009 09:10:52 -0700 (PDT) In-reply-to: <150c16850907161104j5e059baep988c5f04a0552c8c@mail.gmail.com> Sender: linux-ext4-owner@vger.kernel.org List-ID: On Jul 16, 2009 11:04 -0700, Justin Maggard wrote: > On Fri, Jul 3, 2009 at 7:38 AM, Andreas Dilger wrote= : > >> - =A0Immediately running e2fsck on the volume before ever mounting= it > >> will not complete, and results in the following: > >> # e2fsck -n /dev/md2 > >> e2fsck 1.41.7 (29-June-2009) > >> Error reading block 2435874816 (Attempt to read block from filesys= tem > >> resulted in short read). =A0Ignore error? no >=20 > Error reading block 576192512 (Attempt to read block from filesystem > resulted in short read) while reading inode and block bitmaps. Ignor= e > error? no >=20 > e2fsck: Can't read an block bitmap while retrying to read bitmaps for= /dev/md2 > e2fsck: aborted What is very strange here is that the block numbers being reported as having read errors are not even beyond the 16TB limit. Assuming 4kB bl= ocks: 576192512 * 4kB =3D 2304770048kB =3D 2198GB Are there error messages in syslog/dmesg when this happens? Cheers, Andreas -- Andreas Dilger Sr. Staff Engineer, Lustre Group Sun Microsystems of Canada, Inc. -- To unsubscribe from this list: send the line "unsubscribe linux-ext4" i= n the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html