IBM z/OS V2R2: Availability Management

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IBM predictive failure analysis

This chapter describes the IBM predictive failure analysis (PFA) enhancements in z/OS V2R2 and includes the following topics:

•4.1, “PFA overview” on page 38

•4.2, “PFA summary of changes” on page 38

4.1 PFA overview

Software detected system failures are categorized into one of the following types:

•Masked failures: These failures are software detected system failures, which are detected and corrected by the software component.

•Hard failures: This failure occurs when the software fails completely; for example, when ...

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