Hi everyone.
I just fixed a minor bug in na_snapmon (it would try to delete dump snapshots all of the time instead of just the ones that were more than two days old). The copy that I put up on my NetApp web page doesn't have that problem:
http://www.pathname.com/~quinlan/netapp/
That could actually cause some problems for older releases (before 4.3x) affected by bug #650 that would crash the filer if you tried deleting a snapshot that's in use.
Now, na_snapmon makes the assumption that dumps older than two days are safe to delete, or at least you're running 4.3 or later.
Dan