About configuring Exchange Single Instance Store backups (Exchange 2007 and earlier)

Exchange Server 2007 and earlier uses the Single Instance Store (SIS) to maintain single-instance storage of mail messages. This capability in Exchange Server allows the database to keep one copy of a message sent to multiple users on the same server.

To back up the data that is stored on an SIS volume, select Enable single instance backup for message attachments. Enable this option in the Exchange properties for the NetBackup client where Exchange Server is installed.

See Configuring host properties for Exchange clients.

Note the following: