Abstract: Due to the integration of multiple I/O device controllers in a storage controller and the need to provide secure and fast data transfers between the I/O devices and the storage controller, an architecture that can perform multiple encrypt/decrypt operations simultaneously is therefore needed to service multiple transfer requests without a negative impact on the speed of transfer and processing. The present invention relates to enhancing Direct Memory Access (DMA) operations between multiple IO devices and a storage controller by adding a Data Processing Core. Exemplary implementations are provided to illustrate the background mechanism used by a DMA controller that minimizes central-processing-unit (CPU) intervention and the multi-channel architecture which allows multiple IO requests to be serviced simultaneously.

Abstract: A data storage system is provided comprising several flash arrays in a board and stacking these boards to attain a high-capacity solid state hard drive. A remap table is used to map all logical addresses from a host system to the actual physical addresses where data are stored. The assignments of these physical locations are done in such a way that the load of the system is evenly distributed to its available resources. This would ensure that the storage system will run at its utmost efficiency utilizing its resources properly. To achieve this, the system would make sure that the physical location of data be evenly distributed according to the current load of the system.