[Discuss] lvm snapshot cloning

[Richard Pieri]

On Oct 24, 2011, at 8:41 PM, markw at mohawksoft.com wrote:
> 
> With snapshots, its a bad design in that all snapshots receive all COW
> blocks. So if you have two snapshots with the same basic content, there
> will be duplicative data. This means that you have to allocate enough
> space for the changes N times depending on the number of snapshots.

This appears to be a bad design to you because you are thinking in terms of high-level file I/O.  And yes, I agree: it is very inefficient from the perspective of the high-level file system.  So don't do that.  Treat LVM volumes as simple block devices like I described.

If you won't do that then I can't help you.

--Rich P.