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The Solaris command iostat -E reports a non-zero, Predictive Failure Analysis, value. (Doc ID 1003926.1)

Last updated on APRIL 21, 2023

Applies to:

Sun Disk Drive - Version Not Applicable and later
All Platforms


The solaris command, iostat, reports on many disk drive attributes. It may be used to review performance, total I/O's as well as error counts. When iostat is used with the "-E" modifier, it will report on the Predictive Failure Analysis (PFA). A normal PFA is zero. This document provides an approach to a non-zero (usually 1) PFA.


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