From mboxrd@z Thu Jan 1 00:00:00 1970 From: Laurent CARON Subject: Issue with Adaptec AIC-7899P using MD on Dell PE 2650 Date: Tue, 13 Mar 2007 12:20:01 +0100 Message-ID: <45F688E1.5040303@unix-scripts.info> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Return-path: Sender: linux-raid-owner@vger.kernel.org To: linux-raid@vger.kernel.org, linux-poweredge@dell.com List-Id: linux-raid.ids Hi, I'm happily using MD on one of our fileservers. This fileserver is basically a Dell PowerEdge 2650 loaded with 5x300GB HDDs. A 1TB Raid5 partition is defined over the 5 disks md1 : active raid5 sdb3[5] sde3[4] sdd3[3] sdc3[2] sda3[0] 1170238464 blocks level 5, 64k chunk, algorithm 2 [5/4] [U_UUU] Today, one of the HDDs failed: I got a lot of errors like this one in the logs raid5:md1: read error not correctable (sector 153334912 on sdb3). I failed/removed the disk from the array mdadm /dev/mdX -f /dev/sdbX mdadm /dev/mdX -r /dev/sdbX I then removed it from the scsi bus "echo .... > /proc/scsi/scsi" Removed the disk from the server (phisically) Inserted a new one Did rescan the SCSI bus to detect the new HDD, and the server froze. This is the second time it happens while changing a hard disk on that particular brand/model. Is this a known issue with the SCSI HBA? Did i do something wrong ? Thanks Laurent