Partial L2P Table for SSD Memory Optimization

The patent divides the full logical-to-physical address translation table into multiple translation data units (TDUs) that can be selectively loaded into controller memory. Instead of loading the entire translation table at once, the system segments it into manageable chunks (TDUs) and loads only the necessary portions based on access patterns, thereby reducing memory space requirements while maintaining address translation functionality.

The patent implements partial action by loading only a subset of the translation table entries into controller memory rather than the complete table. The system loads TDUs selectively based on which logical addresses are most likely to be accessed, performing partial address translation in memory while the remaining translations are handled by searching the full table stored in the storage device.

The patent applies preliminary action by pre-loading frequently accessed translation data units into controller memory before they are actually needed for address translation. The system anticipates which TDUs will be needed based on access patterns and loads them in advance, so that when address translation is required, the data is already available in fast memory, maintaining performance despite reduced overall memory usage.

The patent implements self-service through an automated TDU management system that monitors access patterns, determines which translation data units need to be loaded into memory, and performs the loading operations automatically without manual intervention. The system serves itself by managing its own memory contents dynamically, loading TDUs when beneficial and evicting them when memory space is needed, thereby maintaining performance autonomously.