Virtual Block Pools for Storage Endurance Protection

The patent divides the shared memory into multiple virtual pools, where each virtual pool is associated with a specific application or host device. This segmentation allows the controller to track and manage write operations for each application separately, preventing any single malicious application from causing excessive write amplification that would wear out the entire memory device. Each virtual pool has its own counter that tracks the number of write operations, enabling granular control over memory usage and endurance protection.

The patent creates virtual copies of the memory pool structure, where each application receives a virtual pool that appears as a separate memory space. The controller maintains counter copies for each virtual pool, allowing it to track write operations independently for each application without requiring complex physical reconfiguration. This virtualization approach simplifies the monitoring mechanism while providing granular control over memory usage and health tracking.

The patent implements a threshold-based warning system that proactively notifies applications before their write operations cause significant wear to the memory device. By setting predetermined thresholds and sending warnings in advance, the system prevents excessive write amplification before it occurs, extending the memory device lifespan. The controller monitors write operation counts against these thresholds and communicates warnings to applications, allowing them to adjust their behavior before causing damage.