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I googled many times but couldn't find an answer. What I want is cloning an LVM thin provisioning volume to another thin volume.

For now I know dd can clone a thin volume as following:

dd if=/dev/mapper/vg_thin01 of=/dev/mapper/vg_thin02 bs=1M

But the new cloned volume will be full size! How can I make it to sparse/thin volume?

(Actually the thin volume will be used for DomU storage in Xen or KVM )

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The thin provisioning is a bit on the bleeding edge side of things. There may simply be no tools yet to accomplish this. –  Zoredache Dec 18 '12 at 8:16
    
Yes.. Actuall I saw very little messages about this topic on internet. –  fubupc Dec 18 '12 at 10:37

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