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SSD Cache for RAID: Integrating Data Caching and Parity Update Delay
| Content Provider | Semantic Scholar |
|---|---|
| Author | Minh, Sophal Lee, Dong-Hee |
| Copyright Year | 2017 |
| Abstract | In enterprise environments, hybrid storage typically utilizes SSDs over disk-based RAID. Typically, SSDs over RAID are used as the data cache. Recently, the LeavO caching scheme was introduced to reduce the parity update overhead of the underlying RAID. In this paper, we combine the data caching and LeavO caching schemes and derive cost models of the combined cache to determine the optimal data and LeavO cache sizes. We also propose the Adaptive Combined Cache that dynamically adjusts the data cache and LeavO cache sizes for evolving workloads. Experimental results show that the performance of the Adaptive Combined Cache is significantly superior to that of the conventional data caching scheme and is comparable with that of the off-line optimal scheme. |
| Starting Page | 379 |
| Ending Page | 385 |
| Page Count | 7 |
| File Format | PDF HTM / HTML |
| DOI | 10.5626/ktcp.2017.23.6.379 |
| Volume Number | 23 |
| Alternate Webpage(s) | http://kiise.or.kr/e_journal/2017/6/KTCP/pdf/06.pdf |
| Alternate Webpage(s) | https://doi.org/10.5626/ktcp.2017.23.6.379 |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
