In my post OpenSolaris Backup Solution with Rsync and ZFS Snapshots I provided a link to a script from Sun – snapadm.pl. I found a bug where if you were using the recursive function then the old snapshots would never be destroyed as they were incorrectly named.
I have updated the snapadm.pl file contained in my post and have also provided a download link here.
Download:
Read on for more details: