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Re: [dm-devel] dm snapshot diffs



On mer. 18 mai 2011 20:47:28 CEST, Groshev Dmitry <a2alt ya ru> wrote:

> Hello. I' m using LVM with snapshots on a big storage and for some
> reason I need to get some information that bare LVM doesn't provide. Is
> there a way to get a list of blocks that was changed since the snapshot
> was created? I see that snapshot-cow device if being filled, but how I
> can find a "old block in origin -> new block in cow" mapping?
>
you may want to look at dds in the www.opensvc.com git repo.
This small tool parse the lvm2 snapshot cow table format.


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