Hello,
Could anybody point me where to find the internal structures of the COW
devices in /dev/mapper?
What I want to do, exactly, is: make a backup of the snapshot in an image
file, reading all the used blocks, and leaving the "not-used" ones.
Later, I
want to get the image file, and restore the cow device. But I can''t
find an
LVM document describing exactly how the COW structure is stored in disk.
Thanks,
Marconi Rivello.
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