From: Pierre Beck <mail@pierre-beck.de>
To: NeilBrown <neilb@suse.de>
Cc: linux-raid@vger.kernel.org
Subject: Re: Raid5 crashed, need comments on possible repair solution
Date: Sat, 12 May 2012 19:19:32 +0200 [thread overview]
Message-ID: <4FAE9BA3.4000407@pierre-beck.de> (raw)
In-Reply-To: <20120424090122.3d90b4a6@notabene.brown>
Hi,
got an all-spares auto-assembly on IRC with "Raid level: -unknown-". We
recovered by re-creating the array. Since more data is always good, I
add this to the thread and hope it helps confirm the bug is fixed by the
patch.
RAID-5, 3 members with 1 missing on creation and ever since.
Members on partitions with partition type set for auto-assembly.
Array was transported to a new machine.
Drive order got mixed up on transport: AB_ BA_
(figured that out on recovery)
On target machine boot-up (array not yet configured in mdadm.conf)
Archlinux auto-assembled array with both drives as spares:
/dev/sda1:
Magic : a92b4efc
Version : 1.2
Feature Map : 0x0
Array UUID : c051172d:52ed3e47:e8dc6dc8:8798f4c9
Name : OncleGeorges:0
Creation Time : Fri Aug 5 18:00:19 2011
Raid Level : -unknown-
Raid Devices : 0
Avail Dev Size : 1953515969 (931.51 GiB 1000.20 GB)
Data Offset : 2048 sectors
Super Offset : 8 sectors
State : active
Device UUID : a8b44e10:ff04d973:c5f92933:3c9e124f
Update Time : Sat Apr 21 19:14:34 2012
Checksum : 8b57fb27 - correct
Events : 1
Device Role : spare
Array State : ('A' == active, '.' == missing)
/dev/sdb1:
Magic : a92b4efc
Version : 1.2
Feature Map : 0x0
Array UUID : c051172d:52ed3e47:e8dc6dc8:8798f4c9
Name : OncleGeorges:0
Creation Time : Fri Aug 5 18:00:19 2011
Raid Level : -unknown-
Raid Devices : 0
Avail Dev Size : 2046769231 (975.98 GiB 1047.95 GB)
Used Dev Size : 1953515969 (931.51 GiB 1000.20 GB)
Data Offset : 2048 sectors
Super Offset : 8 sectors
State : active
Device UUID : d2594375:c8adc5a0:53938a24:9bd5c6be
Update Time : Sat Apr 21 19:14:34 2012
Checksum : 83dd0895 - correct
Events : 1
Device Role : spare
Array State : ('A' == active, '.' == missing)
Versions:
Linux HostName 3.3.4-2-ARCH #1 SMP PREEMPT Wed May 2 15:39:58 UTC 2012
i686 AMD Athlon(tm) 64 X2 Dual Core Processor 3800+ AuthenticAMD GNU/Linux
mdadm - v3.2.3 - 23rd December 2011
Greetings,
Pierre Beck
next prev parent reply other threads:[~2012-05-12 17:19 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-04-23 13:56 Raid5 crashed, need comments on possible repair solution Christoph Nelles
2012-04-23 21:00 ` NeilBrown
2012-04-23 21:47 ` Christoph Nelles
2012-04-23 23:01 ` NeilBrown
2012-05-12 17:19 ` Pierre Beck [this message]
2012-05-14 21:00 ` C.J. Adams-Collier KF7BMP
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