Storage controllers manage the flow of information between the server and the data, playing a critical role in the performance and availability of the disk subsystem. Most offer redundancy and many offer multiple paths to the data, but this often is where the similarity ends.
There are numerous key considerations and differences, such as the mode of enabling access to all the data across the controllers, and managing the utilisation of the controllers. This is one of numerous examples of where HDS’ considerable expertise in enterprise systems disks has filtered down to the new cost-effective HUS mid-range disk subsystem.
