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On 18/07/13 13:05, Chris Murphy wrote:
> Sounds like if I have a degraded 'single' volume, I can simply cp or
> rsync everything from that volume to another, and I'll end up with a
> successful copy of the surviving data. True?

Not quite.  I did it with cp -a.  Because all the metadata survived, cp
would create the target file, but then get an i/o error on opening/reading
the source file.  It would print an error message, but not delete the
empty target file. Consequently I ended up with loads of zero length files
I had to go in and delete afterwards.

I briefly looked for an rsync option to keep going on source i/o errors
but didn't find one.

Roger
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