On Mon, 2014-12-08 at 20:12 +0100, Frank Louwers wrote: > Hi all, > > I was wondering if there is a way to get a binary “diff” between two snapshots? Output would be the contents off the blocks that are changed + some metadata to tell which blocks it actually are. Goal would be: > > - take FS at snapshot A, sync that snapshot to a different volume/LUN/remote machine/… > - [changes occur to the fs] > - take FS at point B > > I’d now like to get the “diff” between A and B, and get it in a format we can apply to the secondary (“backup”) volume that is still at level A. Outcome would be that the second volume is a copy of the first volume, at point B. > > Inspiration: https://github.com/mpalmer/lvmsync > There are experimental branches: nilfs-utils git://github.com/konis/nilfs-utils.git (diff-v2 branch) kernel git://github.com/konis/nilfs2.git (diffapi-v2 branch) The nilfs-diff shows changes between two checkpoints of nilfs2 volume. [1] http://marc.info/?l=linux-nilfs&m=141294888117653&w=2 [2] http://marc.info/?l=linux-nilfs&m=134404514116556&w=2 Thanks, Vyacheslav Dubeyko. > > > Frank Louwers > Openminds bvba > > Tel: +32 9 225 82 91-- > To unsubscribe from this list: send the line "unsubscribe linux-nilfs" in > the body of a message to majordomo@xxxxxxxxxxxxxxx > More majordomo info at http://vger.kernel.org/majordomo-info.html -- To unsubscribe from this list: send the line "unsubscribe linux-nilfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
