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Re: Overwritten partition

To: hallexh@xxxxxxxxx
Subject: Re: Overwritten partition
From: Emmanuel Florac <eflorac@xxxxxxxxxxxxxx>
Date: Mon, 1 Jun 2015 13:13:06 +0200
Cc: xfs@xxxxxxxxxxx
Delivered-to: xfs@xxxxxxxxxxx
In-reply-to: <556A3E25.6010706@xxxxxxxxx>
Organization: Intellique
References: <556A3E25.6010706@xxxxxxxxx>
Le Sun, 31 May 2015 00:48:05 +0200
hallexh@xxxxxxxxx Ãcrivait:

> I accidentally overwritten first 40GB of 36TB XFS partition. I ran
> xfs_repair then, which resets the superblocks (I'm sorry i didn't
> copied the output of it) and after I mounted the partition, there was
> no files. Empty file system, but It should be almost 90% full.
> 
> Am I really screwed or there's a chance to recover the data somehow?

At this point your best bet is to use a tool like photorec on the
partition to see what data it can salvage, though on 36 TB sorting the
results may be overwhelming... You'll need some other large filesystem
to store the salvaged data, though.

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