On Fri, Jun 4, 2010 at 9:30 AM, Ray Van Dolson <[email protected]> wrote: > The ISO's I'm testing with are the 32-bit and 64-bit versions of the > RHEL5 DVD ISO's. While both have their differences, they do contain a > lot of similar data as well.
Similar != identical. Dedup works on blocks in zfs, so unless the iso files have identical data aligned at 128k boundaries you won't see any savings. > If I explode both ISO files and copy them to my ZFS filesystem I see > about a 1.24x dedup ratio. Each file starts a new block, so the identical files can be deduped. -B -- Brandon High : [email protected] _______________________________________________ zfs-discuss mailing list [email protected] http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
