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Date:   Tue, 14 Jan 2020 16:03:53 +0000
From:   James Courtier-Dutton <james.dutton@...il.com>
To:     linux-ext4 <linux-ext4@...r.kernel.org>
Subject: ext4 recovery

Hi,

Say I started with 1 disk using LVM with an ext4 partition.
I then added another disk. Added it to the LVM group, expanded the
ext4 partition to then fill 2 disks.
I then added another disk. Added it to the LVM group, expanded the
ext4 partition to then fill 3 disks.

One of the disk has now failed.
Are there any tools available for ext4 that could help recover this?
Note, I am a single user, not a company, so there is no money to give
to a data recovery company, so I wish to try myself.

Is there a mount option that will mount an ext4 partition even if
there are lots of sector errors, or a missing disk. So, at least some
of the files will be recoverable.
Or a tool that will scan the disk for super blocks, then find inodes
and then find the sector location of the files, even if they don't
have filenames.

Kind Regards

James

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