Name
Abstract | ||
|---|---|---|
Shingled Magnetic Recording (SMR) disks are adopted as a high-density, non-volatile storage media which significantly precedes conventional disks in both the storing volume and cost. However, time-consuming Read–Modify–Writes (RMWs) significantly degrade the system performance of SMR disks. Current designs devote a portion of disk spaces as a cache to alleviate the negative effect brought by RMWs; however, when the cache is full, the cleaning process becomes the performance bottleneck of the system. This paper presents a hybrid architecture called FC (Flash Cache) to manage the SMR disks by replacing the cache with a built-in NAND flash. The performance without triggering a cleaning process of FC can be comparable to that of the NAND flash rather than Hard Disk Drives (HDDs). Furthermore, FC is capable of shortening the large-scale cleaning process and performing much faster cleaning. Our experimental results show that FC can improve both system response time and cleaning efficiency. |
Year | DOI | Venue |
|---|---|---|
2019 | 10.1016/j.sysarc.2019.07.011 | Journal of Systems Architecture |
Keywords | Field | DocType |
Shingled magnetic recording,NAND flash memory,Cache management,Garbage collection | Bottleneck,Cache,Computer science,Parallel computing,Response time,NAND gate,Shingled magnetic recording,Embedded system | Journal |
Volume | ISSN | Citations |
98 | 1383-7621 | 4 |
PageRank | References | Authors |
0.46 | 0 | 5 |
Name | Order | Citations | PageRank |
|---|---|---|---|
| Chenlin Ma | 1 | 14 | 4.74 |
| Zhaoyan Shen | 2 | 29 | 9.79 |
| Lei Han | 3 | 45 | 11.52 |
| Renhai Chen | 4 | 115 | 9.09 |
| Zili Shao | 5 | 1618 | 134.03 |