Cache Management using a Adaptive Parity Group Configuration in RAID 5 Controller


The KIPS Transactions:PartA, Vol. 10, No. 2, pp. 83-92, Jun. 2003
10.3745/KIPSTA.2003.10.2.83,   PDF Download:

Abstract

RAID 5 is a widely-used technique used to construct disk systems of high reliability and performance. This paper proposes APGOC (Adaptive Parity Group On Cache) organization on cache to solve "small write" problem of RAID 5 especially in OLTP (On-Line Transaction Processing System) environments. In our approach, when user process makes a request for a file to kernel, the information on the read/write characteristics is added to the file data structure of the file system. With this information, data and parity cache can be managed interchangeably through parity fetching. Therefore we can enhance the cache utilization and improve the disk request response time. Our method is analyzed and evaluated with a simulation method. Comparing with previous works, we observed about 6~13% of performance enhancement.


Statistics
Show / Hide Statistics

Statistics (Cumulative Counts from September 1st, 2017)
Multiple requests among the same browser session are counted as one view.
If you mouse over a chart, the values of data points will be shown.


Cite this article
[IEEE Style]
J. H. Huh, J. Y. Song, T. M. Chang, "Cache Management using a Adaptive Parity Group Configuration in RAID 5 Controller," The KIPS Transactions:PartA, vol. 10, no. 2, pp. 83-92, 2003. DOI: 10.3745/KIPSTA.2003.10.2.83.

[ACM Style]
Jung Ho Huh, Ja Young Song, and Tae Mu Chang. 2003. Cache Management using a Adaptive Parity Group Configuration in RAID 5 Controller. The KIPS Transactions:PartA, 10, 2, (2003), 83-92. DOI: 10.3745/KIPSTA.2003.10.2.83.