What Does %b (or %Busy) Actually Mean in the Output of iostat(1M)?
Last updated on JANUARY 06, 2018
Applies to:Solaris Operating System - Version 8.0 and later
Solaris x64/x86 Operating System - Version 8 6/00 U1 and later
*** Reviewed for currency 06-January-2018 ***
The %b (sometimes referred to as %Busy) column as reported in iostat is often misunderstood.
This document attempts to describe what it actually means.
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