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High waits for "ksfd: async disk io" (Doc ID 1326634.1)

Last updated on JANUARY 30, 2022

Applies to:

Oracle Database - Enterprise Edition - Version to [Release 10.2 to 11.1]
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 Cloud Exadata Service - Version N/A and later
Information in this document applies to any platform.


On running AWR against Oracle Database 11g Enterprise Edition Release, it reports high waits on ksfd: async disk IO which can be shown under the "Top 5 Timed Foreground Events" section.


In this case, waits were reported after applying PSU from to (for CRS, ASM & DB).


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