Restoring data from linear raid

Hi folks!

Two years ago I bought a WDC MyBookWorld II NAS which is using Linux
software raid internally. I thought it used raid1 but it turned out
that in my case it used linear mode. Oh, stupid me, I didn't bother to
check. One of the drives is dead now(it works very unstable, may work
for a while and then just go down for no reason).

I really want to restore _anything_ from the linear raid partition of
the working drive, is it possible at all?

P.S. I googled around and only found the thread with the similar topic
but, I believe, the original author was talking about raid0 actually
and not linear mode.

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Best regards, Pavel
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Re: Restoring data from linear raid

On Tue, 5 Oct 2010, Pavel Shevaev wrote:

> I really want to restore _anything_ from the linear raid partition of
> the working drive, is it possible at all?

It depends on the filesystem. You now have a huge gap in the block data
and I have successfully extracted some files from an ext2 fs in this case,
but don't know much about the others.

I'd recommend to ddrescue the defective drive to a new drive and get as
much data off of it as possible.

--
Mikael Abrahamsson email: swmike@swm.pp.se
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