From mboxrd@z Thu Jan 1 00:00:00 1970 From: Ronny Plattner Subject: Re: once again raid5 Date: Sun, 03 Apr 2005 18:56:24 +0200 Message-ID: References: <16971.62329.939077.933653@cse.unsw.edu.au> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <16971.62329.939077.933653@cse.unsw.edu.au> Sender: linux-raid-owner@vger.kernel.org To: linux-raid@vger.kernel.org List-Id: linux-raid.ids Hi ! Neil Brown schrieb: > Your best bet would be: > > mdadm --create /dev/md2 --level 5 -n 4 /dev/hda1 /dev/hdk1 missing /dev/hdo1 > > and hope that the data you find on md2 isn't too corrupted. You might be > lucky, but I'm not holding my breath - sorry. This worked AFAIS but there are troubles with the filesystems ( no superblocks ...ext3,xfs) :-( -snip- ~# mdadm --detail /dev/md2 /dev/md2: Version : 00.90.01 Creation Time : Sun Apr 3 12:34:42 2005 Raid Level : raid5 Array Size : 735334848 (701.27 GiB 752.98 GB) Device Size : 245111616 (233.76 GiB 250.99 GB) Raid Devices : 4 Total Devices : 3 Preferred Minor : 2 Persistence : Superblock is persistent Update Time : Sun Apr 3 12:34:42 2005 State : clean, degraded Active Devices : 3 Working Devices : 3 Failed Devices : 0 Spare Devices : 0 Layout : left-symmetric Chunk Size : 64K UUID : 39e90883:c8f824d7:16732793:9ba70289 Events : 0.60470023 Number Major Minor RaidDevice State 0 56 1 0 active sync /dev/hdi1 1 57 1 1 active sync /dev/hdk1 2 0 0 - removed 3 89 1 3 active sync /dev/hdo1 -snap- Thanks Ronny ps: For people which are interested in... -snip- server:~# mount -t ext3 /dev/mapper/raid5--volume-home /mnt/data mount: wrong fs type, bad option, bad superblock on /dev/mapper/raid5--volume-home, or too many mounted file systems (could this be the IDE device where you in fact use ide-scsi so that sr0 or sda or so is needed?) server:~# mount -t xfs /dev/mapper/raid5--volume-data /mnt/data mount: /dev/mapper/raid5--volume-data: can't read superblock -snap-