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Re: file corruption issue

To: "Ben Myers" <bpm@xxxxxxx>
Subject: Re: file corruption issue
From: "Patrick Shirkey" <pshirkey@xxxxxxxxxxxxxxxxx>
Date: Mon, 14 May 2012 03:45:06 +0200 (CEST)
Cc: xfs@xxxxxxxxxxx
Importance: Normal
In-reply-to: <20120511165012.GC16099@xxxxxxx>
References: <51509.> <20120511165012.GC16099@xxxxxxx>
User-agent: SquirrelMail/1.4.8-5.el5.centos.10
On Fri, May 11, 2012 6:50 pm, Ben Myers wrote:
> On Fri, May 11, 2012 at 03:27:02AM +0200, Patrick Shirkey wrote:
>> I have some HP machines running centos:
>> kernel 2.6.32-042stab049.6
>> AMD Opteron(tm) Processor 6180 SE
>> RAM:   528 GB
>> RAID bus controller: Hewlett-Packard Company Smart Array G6 controllers
>> We have experienced some kernel crashes due to a kernel bug with
>> interleaving ram on this hardware which require hard reset of the
>> machines.
>> After reboot we are finding that there is severe file corruption on the
>> xfs file system where TBs of readonly databases are getting partially or
>> fully truncated.
>> Has anyone come across this or similar?
> This rings a bell for me but I can't be certain.  Could you provide a
> metadump?

The machines are live so we have already restored the data several times.
Will a metadump from the existing file system be useful or do you need it
post crash?

Patrick Shirkey
Boost Hardware Ltd

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