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Date: Fri, 26 May 2006 13:18:11 -0300
From: "Marconi Rivello" <marconirivello@gmail.com>
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Subject: [linux-lvm] COW Internals
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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 that describes exactly how the COW structure is stored in disk=
.


Thanks,
Marconi Rivello.

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


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