Cache management policy plays a key role in offering low latency access to flash-based SSDs. Most existing solutions including LRU and its successors only focus on improving the cache hit ratio, but rarely consider to reduce the waiting time of the …
Parity-based RAID poses a design trade-off issue for large-scale SSD storage systems: it improves reliability against SSD failures through redundancy, yet its parity updates incur extra I/Os and garbage collection operations, thereby degrading the …
Real-world workloads generally exhibit high skewness in access patterns, and it is a consensus that separating hot and cold data may greatly improve storage system performance such as Solid State Drive(SSD) garbage collection(GC) performance. To …