ASM alert.log shows messages "used AU total mismatch: DD={29273, 0} AT={29250, 0}" (Doc ID 1528617.1)

Last updated on JULY 05, 2017

Applies to:

Oracle Database - Enterprise Edition - Version 11.2.0.3 and later
Information in this document applies to any platform.

Symptoms

 ASM alert log reports below mismatch info

From ASM alert.log

NOTE: disk DATA_01_0000, used AU total mismatch: DD={29273, 0} AT={29250, 0}
GMON checking disk 1 for group 3 at 56 for pid 22, osid 16465
GMON checking disk 2 for group 3 at 57 for pid 22, osid 16465
NOTE: disk DATA_01_0002, used AU total mismatch: DD={29266, 0} AT={29250, 0}
GMON checking disk 3 for group 3 at 58 for pid 22, osid 16465
NOTE: disk DATA_01_0003, used AU total mismatch: DD={29263, 0} AT={29250, 0}
GMON checking disk 4 for group 3 at 59 for pid 22, osid 16465
NOTE: disk DATA_01_0004, used AU total mismatch: DD={29016, 0} AT={29249, 0}

 

Cause

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