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Access to this page requires authorization. You can try changing directories.
The Windows Azure Active Directory Sync tool (DirSync) is used to provision user accounts from Windows Active Directory on-premises to Azure Active Directory in the cloud. DirSync will synchronize changes to user accounts made on-premises to the cloud so that cloud users have access to directory information and can sign-in. This document describes how to backup and later restore the database and encryption keys required for a DirSync install. This will reduce the time to resynchronize user accounts from your on-premises Active Directory to Windows Azure Active Directory when there has been a failure of the previous DirSync installation.
Great document https://www.microsoft.com/en-us/download/details.aspx?id=42524