"A study conducted by industry analyst Enterprise Strategy Group found that the top three IT priorities for remote office / branch office (ROBO) locations were driven by business priorities: to improve information security, ensure regulatory compliance, and enhance disaster recovery. However, the many choices in data protection technologies and approaches, coupled with a wide range of vendors to choose from, can make data protection planning a daunting endeavor."
A white paper released by HP drills deeper into these challenges and the considerations for a better way to approach data protection. It explains the set up and use of ROBO sites for backing up and safeguarding data in a variety of situations, from small business with the ROBO site consisting of some mobiles and laptops to very large duplicated data centers linked by online access through archives on disk or tape.
A good overview of an important area. You can download the white paper here.