Content databases tend to grow at a higher rate than other farm databases, and they are typically backed up separately from farm backups. Content database backups and restores can be performed by using any of the built-in tools. With SQL Server tools, you also have the ability to back up databases to snapshots. With PowerShell, you also have the ability to attach and restore read-only databases. You can also restore content from an unattached content database in SharePoint 2013, which includes granularly restoring sites, site collections, lists, and document libraries without having to attach the content database to the farm.
To back up a content database by using the Central Administration website, perform the following procedure:
Verify the user account requirements. Follow the procedure in the section titled Farm Backup and Restore, or visit TechNet at http://technet.microsoft.com/en-us/library/ee748614.aspx...