[linux-lvm] exposing snapshot block device

[Gionatan Danti]

Il 23-10-2019 00:53 Stuart D. Gathman ha scritto:
> If you can find all the leaf nodes belonging to the root (in my btree
> database they are marked with the root id and can be found by 
> sequential
> scan of the volume), then reconstructing the btree data is
> straightforward - even in place.
> 
> I remember realizing this was the only way to recover a major 
> customer's
> data - and had the utility written, tested, and applied in a 36 hour
> programming marathon (which I hope to never repeat).  If this hasn't
> occured to thin pool programmers, I am happy to flesh out the 
> procedure.
> Having such a utility available as a last resort would ratchet up the
> reliability of thin pools.

Very interesting. Can I ask you what product/database you recovered?

Anyway, giving similar ability to thin Vols would be awesome.

Thanks.

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Danti Gionatan
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