From: Ronny Plattner <ronny_p@gmx.net>
To: linux-raid@vger.kernel.org
Subject: Re: once again raid5
Date: Sun, 03 Apr 2005 18:56:24 +0200 [thread overview]
Message-ID: <d2p73g$9u5$1@sea.gmane.org> (raw)
In-Reply-To: <16971.62329.939077.933653@cse.unsw.edu.au>
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-
prev parent reply other threads:[~2005-04-03 16:56 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-03-31 12:41 once again raid5 Ronny Plattner
2005-03-31 12:56 ` Neil Brown
2005-03-31 13:15 ` Ronny Plattner
2005-04-03 16:56 ` Ronny Plattner [this message]
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