Name
Abstract | ||
|---|---|---|
It is an important issue to reduce the power consumption of a hard disk that takes a large amount of computer systempsilas power. As a new trend, an NV cache is used to make a disk spin down longer by servicing read/write requests instead of the disk. During the spin-down periods, write requests can be simply handled by write buffering, but read requests are still the main cause of initiating spin-ups because of a low hit ratio in the NV cache. Even when there is no user activity, read requests can be frequently generated by running applications and system services, hindering the spin-down. In this paper, we propose new NV cache policies: active write caching to reduce or to delay spin-ups caused by read misses during spin-down periods and a read miss-based spin-down algorithm to extend the spin-down periods, exploiting the NV cache effectively. Our policies reduce the power consumption of a hard disk by up to 50.1% with a 512 MB NV cache, compared with preceding approaches. |
Year | DOI | Venue |
|---|---|---|
2008 | 10.1109/ICCD.2008.4751910 | ICCD |
Keywords | Field | DocType |
hard disk,cache storage,low-power electronics,read miss-based spin-down algorithm,write buffering,nv cache policy,active write caching,hard discs,lfu replacement policy,power consumption reduction,spinning,history,low power electronics | Cache invalidation,Flash memory,Computer science,Cache,Page cache,Real-time computing,Power consumption,Low-power electronics,Parallel computing,Algorithm,Cache algorithms,Smart Cache,Operating system | Conference |
ISSN | ISBN | Citations |
1063-6404 E-ISBN : 978-1-4244-2658-4 | 978-1-4244-2658-4 | 0 |
PageRank | References | Authors |
0.34 | 9 | 5 |
Name | Order | Citations | PageRank |
|---|---|---|---|
| Hyotaek Shim | 1 | 57 | 5.21 |
| Jaegeuk Kim | 2 | 53 | 4.38 |
| Dawoon Jung | 3 | 367 | 20.19 |
| Jin-Soo Kim | 4 | 1806 | 122.94 |
| Seungryoul Maeng | 5 | 730 | 47.58 |