A site collection backup will include all of the sites and site resources belonging to the site collection. This option is intended for situations where you may need to restore a specific site collection only. Site collection backups can be performed through the Central Administration GUI, Windows PowerShell, and by using STSADM. However, restores can only be performed through Window PowerShell or STSADM.
To back up a site collection 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.
Open up the Central Administration home page, look in the Backup and Restore section, and click on Perform a site collection backup.
On the Site collection backup page, select the site collection from the Site collection list.
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