You will find following link very helpful to manage .edb file:
http://books.google.com/books?id=FT6B7_69D7IC&pg=PA115&lpg=PA115&dq=how+to+manage+.edb+files&source=bl&ots=_jJ63_ymty&sig=FsAd0RNYDZasmnbB02IJpExbKvk&hl=en&ei=DhWVSoLvNoyQkQXnlO2MBQ&sa=X&oi=book_result&ct=result&resnum=4#v=onepage&q=how%20to%20manage%20.edb%20files&f=false
There is also some nice edb repair software in case your edb file get corrupted. Either the nasty virus, uncertain application fault or unexpected shutdown has corrupted EDB, the tool can recover all the mailboxes from Exchange server. The most powerful EDB repair software, is capable of scanning the corrupted .edb files with the advance scanning algorithms. The software is effective, immediate and reliable in its EDB repair approach, offering you the best option to get EDB files recovered within minutes.
This easy-to-use tools offers absolute recovery for all the e-mails, notes, journals, appointments, contacts, calendar and other EDB objects.