[linux-lvm] What have snapshots got to do with LVM ?

Joe Thornber thornber at btconnect.com
Mon Apr 23 08:38:18 UTC 2001


On Mon, Apr 23, 2001 at 10:21:45AM +0000, Heinz J. Mauelshagen wrote:
> On Sun, Apr 22, 2001 at 01:09:24PM +0100, Joe Thornber wrote:
> > Just a random Sunday morning thought:
> > 
> > Why don't we split snapshots off into their own driver so we can
> > snapshot any block device, putting the COW tables on any other block
> > device ?  
> 
> Any other block device devides into PE similar allocation units carrying their
> own COW exception table at the beginning?

I'm not sure I understand your comment.  There are two devices the
snapshot origin and the snapshot storage device.  We can divide the
snapshot storage device up how we want, the COW exception tables go in
here.

- Joe



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