I'm looking at implementing File Groups on an existing database that's roughly 600GB. The largest hurdle I have is actually setting this up in production. I need the database to still be available but moving some of the tables will take a considerable amount of time. In development it took nearly 5 days to move all the indexes to their new homes and then shrink the database.
So what is the best way to implement file groups on a large database where you need to keep the database live?