Today, many VTL solutions are limited in their ability to scale performance and/or capacity to meet the special needs of enterprise data centers. To use them in a large datacenter, enterprises may have to modify their backup processes, add multiple systems, or perform a forklift upgrade. Each of these options adds disruption, inefficiency, complexity, and cost. According to ESG “The ability to scale dynamically may be the greatest differentiator of VTL solutions suited for enterprise deployments.”