From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mx1.redhat.com (mx1.redhat.com [172.16.48.31]) by int-mx1.corp.redhat.com (8.13.1/8.13.1) with ESMTP id l42DjJop017797 for ; Wed, 2 May 2007 09:45:19 -0400 Received: from mail.igb.uiuc.edu (mail.igb.uiuc.edu [128.174.124.10]) by mx1.redhat.com (8.13.1/8.13.1) with ESMTP id l42DjG3N006566 for ; Wed, 2 May 2007 09:45:18 -0400 Received: from [128.174.124.103] (arthur.igb.uiuc.edu [128.174.124.103]) (using TLSv1 with cipher RC4-MD5 (128/128 bits)) (No client certificate requested) by mail.igb.uiuc.edu (Postfix) with ESMTP id B29691144012 for ; Wed, 2 May 2007 08:45:08 -0500 (CDT) From: Daniel Davidson Date: Wed, 02 May 2007 08:44:49 -0500 Message-Id: <1178113489.1412.69.camel@arthur.igb.uiuc.edu> Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Subject: [linux-lvm] I/O errors on two disks Reply-To: LVM general discussion and development List-Id: LVM general discussion and development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , List-Id: Content-Type: text/plain; charset="us-ascii" To: linux-lvm@redhat.com I have six promise vtrack 15200 arrays in raid 5 config that I have LVM'ed together to hold a disk copy of my backup data. I restarted the machine yesterday for the first time in a while and the filesystem seems to be not quite right. On both of these devices I am getting the following errors: [root@sbackup ~]# vgscan Reading all physical volumes. This may take a while... /dev/sdc: read failed after 0 of 4096 at 10499998285824: Input/output error /dev/sdf: read failed after 0 of 4096 at 10499996450816: Input/output error Found volume group "backupdisk" using metadata type lvm2 It doesnt make since that there is a bad sector because of the raid 5 nature and the arrays show perfect health. I can read from the drive as show by: [root@sbackup ~]# dd if=/dev/sdc of=/dev/null 1744873+0 records in 1744872+0 records out 893374464 bytes (893 MB) copied, 29.2183 seconds, 30.6 MB/s Note: I did a ctrl C Any ideas on how to repair? thanks, Dan