Using Outermost-Zone Tracks as a Cache to Boost Disk Write Performance


The Transactions of the Korea Information Processing Society (1994 ~ 2000), Vol. 6, No. 11, pp. 3116-3123, Nov. 1999
10.3745/KIPSTE.1999.6.11.3116,   PDF Download:

Abstract

A duplex system enhances reliability by tolerating faults through spatial redundancy. Faults can be detected by duplicating identical tasks in pairs of modules. However, this kind of systems cannot even detect the fault if it occurs coincidently due to either malfunctions of common component such as power supply and clock or due to such environmental disruption as EMI. In the paper, we propose a method to reduce those effects of coincident faults in the duplex controller computer. Specifically, a duplex system tolerates coincident faults by using a sophistication sequencing of scheduling technique with certain timing redundancy. In particular when all tasks should be completed in the sense of real-time, the suggested scheduling method works properly to minimize the probability of faulty tasks due to coincident fault without missing the timing constraints.


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. J. Woo and C. P. Hong, "Using Outermost-Zone Tracks as a Cache to Boost Disk Write Performance," The Transactions of the Korea Information Processing Society (1994 ~ 2000), vol. 6, no. 11, pp. 3116-3123, 1999. DOI: 10.3745/KIPSTE.1999.6.11.3116.

[ACM Style]
Jong Jung Woo and Chun Pyo Hong. 1999. Using Outermost-Zone Tracks as a Cache to Boost Disk Write Performance. The Transactions of the Korea Information Processing Society (1994 ~ 2000), 6, 11, (1999), 3116-3123. DOI: 10.3745/KIPSTE.1999.6.11.3116.