> An easier way would be ...
>   - clone the save sets (setting the appropriate retention time for 
> that pool, for example "10 years")
>   - just let the save sets on AFTD expire after a shorter period, 
> usually defined by the backups' retention policy
> This would avoid the scripted cleaning process.

That won't delete the old savesets from disk, though, which is the point 
of the script.