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From: Phil Turmel <philip@turmel.org>
To: Roman Mamedov <rm@romanrm.ru>
Cc: Paul Richter <iamcomcy@gmail.com>, linux-raid@vger.kernel.org
Subject: Re: Is this RAID recoverable???
Date: Tue, 03 Jan 2012 08:26:08 -0500	[thread overview]
Message-ID: <4F0301F0.40206@turmel.org> (raw)
In-Reply-To: <20120103153757.5487e6fa@natsu>

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Hi Paul, Roman,

On 01/03/2012 04:37 AM, Roman Mamedov wrote:
> On Tue, 3 Jan 2012 10:41:04 +0400
> Paul Richter <iamcomcy@gmail.com> wrote:
> 
>> Researched the net as much as possible, added this to wiki page:
>> http://en.wikipedia.org/wiki/Mdadm#Recovering_from_a_loss_of_raid_superblock
> 
> Oh, so it was you who originally wrote those instructions? :)
> See http://permalink.gmane.org/gmane.linux.raid/35538

I was going to cite myself ...

> And also you probably mean http://en.wikipedia.org/w/index.php?title=Mdadm&oldid=468952888#Recovering_from_a_loss_of_raid_superblock
> because that part was nuked from the wikipedia page already.

As to the original question:  The odds are poor, but not zero.  If you
read my advice to Marcin, you know that some information from your
original array is needed.  Do you have any of it?

The array size error that mount reports suggests that you are close
to correct.  I suspect the original array was created with a different
data offset from the new array.  The default for that changed around
mdadm v2.6.9.

HTH,

Phil

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  reply	other threads:[~2012-01-03 13:26 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-01-03  6:41 Is this RAID recoverable??? Paul Richter
2012-01-03  9:37 ` Roman Mamedov
2012-01-03 13:26   ` Phil Turmel [this message]
2012-01-03 14:22     ` Paul Richter
2012-01-03 14:34       ` Phil Turmel
     [not found]         ` <CAHw_BJ0NEd_RHQqdONkTiq4HO2RWQD3uHUAbQvqca9OGapgmEg@mail.gmail.com>
     [not found]           ` <CAHw_BJ26omrNdOzc23mCF5ObEG9z8zwmNFrP5h2dkfg_Pj+BNQ@mail.gmail.com>
     [not found]             ` <4F031C43.6030601@turmel.org>
     [not found]               ` <CAHw_BJ2Zzivi25zDvd6zj6=85mKRNExEiUgy8HmHVk94mn_FoQ@mail.gmail.com>
2012-01-03 15:42                 ` Phil Turmel
     [not found]   ` <CAHw_BJ1=z-qNq+KXyjV6ZjBfxRdtQM6x1wVpxDQsiW2b-54O_A@mail.gmail.com>
2012-01-03 13:36     ` Roman Mamedov

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