> On Mon, Mar 29, 2010 at 5:39 PM, Nicolas Williams > <[email protected]> wrote: > > One really good use for zfs diff would be: as a way to index zfs send > > backups by contents. > > Or to generate the list of files for incremental backups via NetBackup > or similar. This is especially important for file systems will > millions of files with relatively few changes.
+1 The reason "zfs send" is so fast, is not because it's so fast. It's because it does not need any time to index and compare and analyze which files have changed since the last snapshot or increment. If the "zfs diff" command could generate the list of changed files, and you feed that into tar or whatever, then these 3rd party backup tools become suddenly much more effective. Able to rival the performance of "zfs send." _______________________________________________ zfs-discuss mailing list [email protected] http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
