When I moved from 3480 to 3590 in a magstar I preceded as follows:

Create new devclass pointing to new library and drives

Create new storage pool using new devclass

Point all management classes to use the new storage pool

Finally, update the old storage pool's reclaimstorage pool to point to the 
newly created pool.

Now reclamation will move your data for you.
If you need to move faster, just lower the reclamation threshhold.

Hope this helps.


Gary Lee
Senior Operating Systems Analyst
Ball State University
phone 765-285-1310