On Fri, March 26, 2010 07:06, Edward Ned Harvey wrote: >> In the "Thoughts on ZFS Pool Backup Strategies thread" it was stated >> that zfs send, sends uncompress data and uses the ARC. >> >> If "zfs send" sends uncompress data which has already been compress >> this is not very efficient, and it would be *nice* to see it send the >> original compress data. (or an option to do it) > > You've got 2 questions in your post. The one above first ... > > It's true that "zfs send" sends uncompressed data. So I've heard. I > haven't tested it personally. > > I seem to remember there's some work to improve this, but not available > yet. Because it was easier to implement the uncompressed send, and that > already is super-fast compared to all the alternatives.
I don't know that it makes sense to. There are lots of existing filter packages that do compression; so if you want compression, just put them in your pipeline. That way you're not limited by what zfs send has implemented, either. When they implement bzip98 with a new compression technology breakthrough, you can just use it :-) . -- David Dyer-Bennet, d...@dd-b.net; http://dd-b.net/ Snapshots: http://dd-b.net/dd-b/SnapshotAlbum/data/ Photos: http://dd-b.net/photography/gallery/ Dragaera: http://dragaera.info _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
