论文信息 - A model of shared DASD and multipathing

A model of shared DASD and multipathing

This paper presents a model of an I/O subsystem in which devices can be accessed from multiple CPUs and/or via alternative channel and control unit paths. The model estimates access response times, given access rates for all CPU-device combinations. Central to the model's algorithm is the estimation of the rotational position sensing (RPS) miss probabilities by means of the maximum entropy principle. Performance differences strongly favored the English-based editor.

Yonathan Bard | Y. Bard

[1] Yonathan Bard,et al. Some Extensions to Multiclass Queueing Network Analysis , 1979, Performance.

[2] Yonathan Bard. An Analytic Model of the VM/370 System , 1978, IBM J. Res. Dev..

[3] Yonathan Bard. The VM/370 Performance Predictor , 1978, CSUR.

[4] Yonathan Bard,et al. Estimation of State Probabilities Using the Maximum Entropy Principle , 1980, IBM J. Res. Dev..

[5] E. T. Jaynes,et al. Where do we Stand on Maximum Entropy , 1979 .

[6] K. Mani Chandy,et al. Computational algorithms for product form queueing networks , 1980 .

[7] Philip H. Seaman,et al. On Teleprocessing System Design Part IV: An Analysis of Auxiliary Storage Activity , 1966, IBM Syst. J..

[8] Neil C. Wilhelm. A General Model for the Performance of Disk Systems , 1977, J. ACM.

[9] John Zahorjan,et al. A Oueueing Model Of A Rotational Position Sensing Disk System , 1978 .

[10] S. Ledermann. Kullback S. — Information Theory and Statistics , 1962 .