linux-ext4 - Re: Recovering a damaged ext4 fs

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Date:	Fri, 6 Feb 2009 23:34:36 +0100
From:	"J.D. Bakker" <jdb@...tmaker.nl>
To:	Ric Wheeler <rwheeler@...hat.com>
Cc:	linux-ext4@...r.kernel.org
Subject: Re: Recovering a damaged ext4 fs - revisited.

At 17:15 -0500 06-02-2009, Ric Wheeler wrote:
>J.D. Bakker wrote:
>>Hi,
>>
>>My 4TB ext4 RAID-6 has just become damaged for the second time in 
>>two months. While I do have backups for most of my data, it would 
>>be good to know if there is a recovery procedure or a way to avoid 
>>these crashes. The symptoms are massive group descriptor 
>>corruption, similar to what was mentioned in 
>>http://thread.gmane.org/gmane.comp.file-systems.ext4/10844 and 
>>http://article.gmane.org/gmane.comp.file-systems.ext4/11195 .
>What kind of RAID 6 device are you using? Is it MD raid or some vendor array?

md, as shown in the linked config and dmesg.

>>http://lartmaker.nl/ext4/kernel-config.txt
>>http://lartmaker.nl/ext4/dmesg.txt
>>http://lartmaker.nl/ext4/lspci.txt
>>http://lartmaker.nl/ext4/proc-mdstat.txt
>>http://lartmaker.nl/ext4/proc-partitions.txt

JDB.
-- 
LART. 250 MIPS under one Watt. Free hardware design files.
http://www.lartmaker.nl/
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