作者: Yang Liu , Jianzhong Huang , Changsheng Xie , Qiang Cao
DOI: 10.1109/NAS.2010.9
关键词:
摘要: Offering better performance for random access compared to conventional hard disks and providing larger capacity and lower cost than DRAM, NAND flash based SSDsare integrated in server storage hierarchy as a second tier of disk cache between DRAM and disks for caching more data from disks to meet the increasingly intensive I/O demands. Unfortunately, available hybrid storage architectures cannot fully exploit SSDs' potentials due to absorbing too much workload of disk tier, which results in excessive wear and performance …