To backup a sql server database to a network shared folder , all you need is to add a backup device to target shared folder.
- Configure->Backup devices , and select the target storage server
- Click New or Edit existing device
- In "Path" field , just enter full path to the shared folder (Please don't use a mapped drive as target backup device , Windows dose not allow a service access a mapped drive.)
- Important : Control Panel->Administrative Tools -> Services , Change DataBK Storage Service running user to new user that has enough privileges to write to target shared folder. Please visit following link to get more information http://www.databk.com/back-up-sql-server-to-network-shares.htm