Multi-Actuator Storage Device Logical Address Mapping

The patent applies universality by enabling a single communication interface to handle multiple actuators through logical address mapping. The storage device controller maps different logical address ranges to different physical actuators, allowing one interface to perform the function of multiple dedicated interfaces. This eliminates the need for infrastructure upgrades while maintaining protocol compatibility, as the same SATA interface can address multiple actuators through intelligent address translation rather than requiring separate SAS interfaces for each actuator.

The patent introduces an intermediary layer in the form of a storage device controller that performs logical address to physical actuator mapping. This intermediary translates logical addresses from the host into specific physical actuator commands, enabling multi-actuator access without requiring the host infrastructure to understand or support multiple actuator protocols. The controller acts as a mediator that handles the complexity of multi-actuator coordination internally while presenting a simple single-interface view to the external system.

The patent merges multiple actuator access channels into a single communication interface by implementing logical address space partitioning. Different ranges of logical addresses are mapped to different physical actuators, allowing the system to combine multiple independent access paths into one unified interface. This consolidation reduces the number of physical ports required while maintaining the ability to independently address and control each actuator through the shared interface using address-based routing.