I can not say what is best but what we do.

1) backup diskpool to DLTPOOL2
2) Migrate
3) backup the tape pool to DLTPOOL2
4) Backup DB

Both backups must be to the same copy tape pool.

We do it in this order to keep down tape to tape operations. If no backups
occur during step 1 or 2 then step 3 is do nothing.  If they do occur then
only the new data has to go tape to tape to be backed up.

Hope this helps

--
Phillip Ford
Phillip Ford
Senior Software Specialist
Corporate Computer Center
Schering-Plough Corp.
(901) 320-4462
(901) 320-4856 FAX
phillip.ford AT spcorp DOT com