Les recomendamos estos tres artículos de TechNet en cuanto a respaldos y recuperación de SharePoint se refiere:

Plan for backup and recovery (Office SharePoint Server) 

http://technet.microsoft.com/en-us/library/cc261687.aspx

Prepare to back up and restore a farm (Office SharePoint Server 2007)

http://technet.microsoft.com/en-us/library/cc262704.aspx

Backup, Recovery, and Availability Resource Center for SharePoint Server 2007 (Disaster recovery, data protection, and high availability for SharePoint Server)

http://technet.microsoft.com/en-us/office/sharepointserver/bb736212.aspx