The Hitachi Adaptable Modular Storage 2000 Family with the
Hitachi Dynamic Load Balancing Controller Improves TCO,
Performance and Flexibility — and Delivers 99.999 Percent
Availability
Even better, the storage administrator no longer carries a number of burdens: installing the host core touching
software; maintaining third-party software that they may or may not be familiar with; resolving conflicts between
the vendor’s software and other installed system software; resolving conflicts between the software vendor’s
failover processes and the storage vendor’s failover processes; and discovering which products (if any) the
vendors’ third-party failover supports. Freed of these obligations, the organization no longer has to waste
money on software that duplicates operating system capabilities while spending untold amounts of time in all
the above mentioned activities.
Overall system performance improves as bottlenecks are eliminated at the controller; these improvements in
turn lead to greater ability to meet application service level agreements (SLAs). Installation is faster and easier
because administrators are not required to set paths or assign controller ownership of LUNs. Ongoing
maintenance is also easier because administrators won’t need to monitor systems and adjust LUN ownership
to correct any load balances that lead to bottlenecks. The intelligence that is built into the Hitachi Adaptable
Modular Storage 2000 family with the Hitachi Dynamic Load Balancing Controller identifies unbalanced
workloads and dynamically reallocates controller to drive I/O activity so that neither controller is overloaded.
The controller coordinates well with path management software, offering balanced performance over multiple
data paths when used with the front end load balancing function. And its back end load balancing capability
implemented in the Adaptable Modular Storage 2000 family is unique in the market of midrange modular
storage systems.
Compared to traditional active/passive controller architecture still used by many organizations, the symmetric
active/active architecture offered by the Hitachi Dynamic Load Balancing Controller represents a revolutionary
advance in data storage. With two active controllers dynamically assigning LUN ownership without manual
intervention, management is radically simplified, microcode updates can be effortlessly installed and system
performance is significantly improved. For businesses that rely on efficient data storage, the Hitachi Dynamic
Load Balancing Controller offers the capabilities required for continued growth.
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