Illegal Request Counters On Disks Increasing After Installing Patch 150400-16 or Patch 150401-16
Last updated on AUGUST 01, 2016
Applies to:Solaris Operating System - Version 10 1/13 U11 to 11.2 [Release 10.0 to 11.0]
Information in this document applies to any platform.
Running the format(1m) command causes the "Illegal Request" counter to increment in the output of iostat -En. No events of this condition are logged in the /var/adm/messages. Also, This condition shows up in kernel patch <Patch 150400-16> or <Patch 150401-16> or higher. Heres' an example:
Note the "Illegal Request" counter changed from 11 to 12.
Additionally, nothing shows up in the message logs... we only have these increasing illegal request counts seen with iostat
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