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xen-users
Re: [Xen-users] How was CoW implemented on the Demo LiveCD (3.0) ??
On Wed, Jan 25, 2006 at 12:55:16AM +0530, Anand wrote:
> Can the same method of cow used in the LiveCD be implemented with LVM ?
> instead of the flat images ?
I've never tried it, but it should be possible to use the dmsetup runes
on any block device. In fact Andrew Peace's create_cow script from the
Xen3 demo CD does try to do the right thing if you give it a block
device instead of a file (i.e. not pass it through a loop device).
Don't the LVM tools provide a copy-on-write snapshot facility already?
Tim.
--
Tim Deegan (My opinions, not the University's)
Systems Research Group
University of Cambridge Computer Laboratory
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