The Optimization of the Hierarchical Storage System Based on the Hybrid SSD Technology
This paper introduces the hierarchical storage system (HSM) which is adopted in most computers in consideration of achieving a good balance between cost and performance. As the cost of Flash memory rapidly decreases, Flash-based Solid-State Disk (SSD) is used as a non-volatile cache between the DRAM and Hard Disk Drive (HDD) in the HSM. Although typical SSD can deliver higher performances than HDD can, SSD is currently not adopted in most systems due to its limited life and performance. This study introduces a Hybrid SSD approach that combines DRAM, Phase Changed Memory (PCM) and Flash. Even the Flash architectures has its own drawbacks, the Hybrid SSD could support full capabilities benefit by PCM and DRAM. The performance gap between HDD and DRAM will be narrowed by Hybrid SSD more than the pure Flash SSD while delivering a longer endurance life. So, the HSM is well optimized by lead in a Hybrid SSD between the DRAM and HDD.
Hierarchical storage system HSM Hybrid SSD Phase changed memory PCM
Bu Kai Wang Meng Nie Hongshan Huang Wei Li Bo
National University of Defense Technology, Changsha, 410073, China Nanjing Telecommunication Technology Research Institute of CESEC, Nanjing, 210007, China Beijing Aerospace Control Center, Beijing 100094, China
国际会议
三亚
英文
1323-1326
2012-01-06（万方平台首次上网日期，不代表论文的发表时间）