Can you figure out the "Hitachi + DLB = agile, no touch, no bottlenecks" formula?

Thanks to everyone who left a comment on the Hitachi Data Systems Buzz forum about “DLB”. Your insights on self-balancing techniques for performance-optimized disk storage were well received. 

You guessed right.  “DLB” means dynamic load balancing.

As part of today's midrange storage portfolio announcement, Hitachi Data Systems introduced the new Hitachi Dynamic Load Balancing Controller with symmetric active-active controllers architecture.  A combination of SAS back end with and advanced active-active controller is one of the most important features introduced with the new Hitachi Adaptable Modular Storage 2000 family. These storage systems meet the benchmarking standard "Five 9's" of availability, 99.999 percent uptime and can scale to better address growing storage environments. 

A symmetric active-active controller virtually eliminates I/O transfer delays with integrated, automated hardware based front-to-back I/O load balancing. It ensures I/O traffic from host to disk drives is dynamically managed, balanced and shared equally across both controllers, even if the I/O load to specific Logical Units (LUNS) is skewed. In addition, controller pairing provides seamless operations in VMware with VMotion environments, allowing virtual machines to transfer between physical hosts efficiently. The same LUN can be accessed from different hosts using any host port on either controller.