Iostat "Illegal Requests" and "Device Not Ready" Counter Increase Every Hour (Doc ID 1905565.1)

Last updated on FEBRUARY 29, 2016

Applies to:

Solaris SPARC Operating System - Version 10 3/05 and later
Oracle Solaris on SPARC (64-bit)
Oracle Solaris on x86-64 (64-bit)

Symptoms

Monitoring system health by looking at "iostat -iE" output will show that error counter "Device Not Ready" and "Hard Error" increase on DVDrom device:

 

Changes

 OS version is Solaris 10 or higher

Cause

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