"dedup" operates on the block level leveraging the existing FFS checksums. Read "What to dedup: Files, blocks, or bytes" here http://blogs.sun.com/bonwick/entry/zfs_dedup
The trick should be that the zcat userland app already knows that it will generate duplicate files so data read and writes could be avoided all together. -- This message posted from opensolaris.org _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss