Help, my disk array has one dead member

Karl Auer kauer at biplane.com.au
Wed Mar 22 20:46:30 UTC 2017


On Wed, 2017-03-22 at 16:25 +0100, Liam Proven wrote:
> DD hasn't been the tool for this since the end of last century.

Ah well, I'm nothing if not old-fashioned.

dd will work, and with the noerror parameter will not stop on errored reads.

That said, Liam is quite right: gddrescue is the better choice. If you
read the doco you will see why.

   sudo apt-get install gddrescue ddrescueview

The main point for people to take from this discussion is that if you
have a failing filesystem, you should take a copy of it as soon as you
can, then work on the copy. That way you reduce the likelihood of
further data loss.

Regards, K.

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