On the Reliability of the IBM MVS/XA Operating System

Author

Mourad, Samiha ; Andrews, Dorothy

Author_Institution

Center for Reliable Computing, Computer Systems Laboratory, Departments of Electrical Engineering and Computer Science, Stanford University, Stanford, CA 94305, and Santa Clara University

Issue

10

fYear

1987

Firstpage

1135

Lastpage

1139

Abstract

This paper describes an analysis of system-detected errors on the MVS operating system under the eXtended Architecture (XA) for two IBM 3081 systems. The analysis classifies the errors in categories and examines the effectiveness of the recovery system of the MVS/XA. Comparison of the results for the two IBM 3081´s confirm the dependence of the error distribution on the type of system utilization. The results for one of the machines are compared to those obtained for the same system when operating under MVS/SP. The comparison of the MVS/XA to the MVS/SP reveals the following: more addressing errors, a better error recording system and improved reliability and fault tolerance.

Keywords

Fault tolerance; IBM 3081; MVS/XA; large computing systems; operating system; recovery; reliability; workload; Computer errors; Error analysis; Fault detection; Fault tolerant systems; Frequency; Hardware; Laboratories; Large-scale systems; Military computing; Operating systems; Fault tolerance; IBM 3081; MVS/XA; large computing systems; operating system; recovery; reliability; workload;

fLanguage

English

Journal_Title

Software Engineering, IEEE Transactions on

Publisher

ieee

ISSN

0098-5589

Type

jour

DOI

10.1109/TSE.1987.232855

Filename

1702153