Recovery off a secondary site is not supported with SCCM , backup it up is !  Only a reinstall is supported for secondary site. This news I received yesterday from PSS support , after we ran into an issue with the VSS Backup writer at a customer.I did not know it wasn't supported , as the functionality is there to configure it. Why don't they block this possibility on secondary sites if recovery is not supported. But , I do agree there is not much on a secondary site of value to back...(read more)

Read the complete post at http://scug.be/blogs/sccm/archive/2009/06/22/sccm-backing-up-secondary-sites-isn-t-supported.aspx