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OEM Chart Shows Bad IO Response Time Not Corroborated by Operating System Statistics (Doc ID 2215352.1)

Last updated on FEBRUARY 20, 2019

Applies to:

Oracle Database - Enterprise Edition - Version and later
Oracle Database Cloud Schema Service - Version N/A and later
Oracle Database Exadata Cloud Machine - Version N/A and later
Oracle Cloud Infrastructure - Database Service - Version N/A and later
Oracle Database Backup Service - Version N/A and later
Information in this document applies to any platform.


Upon review of OEM Charts for bad IO response time as well as underlying views:  GV$ASM_DISKGROUP_STAT / GV$ASM_DISK_STAT, it is clear that those values do not correlate to the same data as reported by AIX Unix IO data such as iostat, sar etc.  In short, reported OEM statistics are not corroborated at DB and/or OS level.


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