Virtual Persistent Cache: Remedy the Long Latency Behavior of Host-Aware Shingled Magnetic Recording Drives
Refereed conference paper presented and published in conference proceedings


全文

引用次數

其它資訊
摘要This paper presents a Virtual Persistent Cache design to remedy the long latency behavior of the Host-Aware Shingled Magnetic Recording (HA-SMR) drive. Our design keeps the cost-effective model of the existing HA-SMR drives, but at the same time asks the great help from the host system for adaptively providing some computing and management resources to improve the drive performance when needed. The technical contribution is to trick the HA-SMR drives by smartly reshaping the access patterns to HA-SMR drives, so as to avoid the occurrences of long latencies in most cases and thus to ultimately improve the drive performance and responsiveness. We conduct experiments on real Seagate 8 TB HA-SMR drives to demonstrate the advantages of Virtual Persistent Cache over the real workloads from Microsoft Research Cambridge. The results show that the proposed design can remedy most of the long latencies and improve the drive performance by at least 58.11%, under the evaluated workloads.
著者Ming-Chang Yang, Yuan-Hao Chang, Fenggang Wu, Tei-Wei Kuo, David Hung-Chang Du
會議名稱IEEE/ACM International Conference on Computer-Aided Design (ICCAD)
會議開始日13.11.2017
會議完結日16.11.2017
會議地點Irvine, California
會議國家/地區美國
會議論文集題名2017 IEEE/ACM International Conference on Computer-Aided Design (ICCAD)
出版年份2017
出版社IEEE
頁次17 - 24
國際標準書號978-1-5386-3093-8
國際標準期刊號1933-7760
語言美式英語

上次更新時間 2020-22-10 於 02:46