On 10/04/2012 04:02 PM, Mark Woodward wrote: > On 10/04/2012 10:44 AM, Bryn M. Reeves wrote: >> Really? I'd be surprised if it even builds against modern kernels or >> device-mapper. > Well..... > The LVM2 code that ships with most distros still uses the old interfaces > and still (Ubuntu 12.04) seemst to create a COW file with SnAp Yes; that's the traditional dm-snapshot target that has been in the kernel for years. The Zumastor/ddsnap stuff was a separate project to replace that using a new metadata format and target - they are not the same and the Zumastor snapshot code was never merged in the kernel. >> Snapshots using the thinp target use the metadata format described in >> dm-thin-metadata.c. > > Where are these files to be found? In drivers/md in the kernel sources - the dm-thin stuff was merged after 3.1 (October last year); see commits starting with 991d9fa. Regards, Bryn. _______________________________________________ linux-lvm mailing list linux-lvm@redhat.com https://www.redhat.com/mailman/listinfo/linux-lvm read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/
