Solaris QLC driver version 4.0 up to 4.02 can cause lower i/o rate and higher cpu usage (Doc ID 1585676.1)

Last updated on DECEMBER 13, 2016

Applies to:

Solaris Operating System - Version 10 3/05 to 11.1 [Release 10.0 to 11.0]
Oracle Solaris on SPARC (64-bit)
Oracle Solaris on SPARC (32-bit)
Oracle Solaris on x86 (32-bit)
Oracle Solaris on x86-64 (64-bit)

Symptoms

 Introduction of Solaris QLC driver version 4.x with a new mechanism in the completion routine may cause following symptoms to appear:

 

On configuration using ASM, slow response time can lead to volume being put offline:

 

Cause

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