Every day, CEOs ask: How are we better than our rivals? How are we going to stay better? Sound familiar? For many, the answer increasingly lies in cloud computing. Companies are embracing it enthusiastically, because cloud can help companies be more agile, lower capex, and expand quicker than their rivals. International Data Corporation expects global spending on private cloud services to exceed $24 billion by the end of 2015, making cloud computing practically essential for today’s corporations. While cloud might be widespread, what hasn’t caught on fully is disaster recovery, or DRaaS for cloud. The cloud alone doesn’t guarantee 100…