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Solaris Volume Manager Iostat -nx Reports 100% For "busy" %b on Metadevices after Installing Solaris 10 SVM Patch 150311-05 or 148076-14 (Doc ID 2003027.1)

Last updated on DECEMBER 06, 2021

Applies to:

Solaris Operating System - Version 10 1/13 U11 to 11.3 [Release 10.0 to 11.0]
Sun Solaris Volume Manager (SVM) - Version 11.9.0 to 11.11 [Release 11.0]
Oracle Solaris on x86-64 (64-bit)
Oracle Solaris on SPARC (64-bit)

Symptoms


After upgrading to Solaris 10 1/13, which included patch 150311-05  "iostat -nx" command reports 100% for %b

After finishing the update, the load on the metadevices built on local disks  is reported to be 100% busy, see the output from iostat -nx:

 

Changes

The system was upgraded to Solaris 10 1/13 or later, which included patch 150311-05 or later (on Sparc) or patch 148076-14 or later (on x86)

<SunPatch 150311-05>: SunOS 5.10: md patch

<SunPatch 148076-14>: SunOS 5.10_x86: md patch

Cause

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