Virtualizing disaster recovery using cloud computing

Almost from the beginning of widespread adoption of computers, organizations realized that disaster recovery was a necessary component of their information technology (IT) plans. Business data had to be backed up, and key processes like order entry, billing, payroll and procurement needed to continue even if an organization’s data center was disabled due to a disaster. Over time, two distinct disaster recovery models emerged: dedicated and shared. Although both of these approaches were effective,
they often forced organizations to choose between cost and speed.