<A target="_blank" href="http://www-01.ibm.com/support/docview.wss?uid=swg21358548&myns=swglotus&mynp=OCSSKTMJ&mync=E">Implementing DAOS (Domino Attachment and Object Service)</A> on your Domino servers can save lots of disk space but leave you backing up the wrong thing. This Technote explains the changes made to the NSFs and what you need to do to get useful backups for later restores.