High waits for "ksfd: async disk io"
(Doc ID 1326634.1)
Last updated on JANUARY 30, 2022
Applies to:
Oracle Database - Enterprise Edition - Version 10.2.0.5 to 11.1.0.7 [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.
Symptoms
On running AWR against Oracle Database 11g Enterprise Edition Release 11.1.0.7, it reports high waits on ksfd: async disk IO which can be shown under the "Top 5 Timed Foreground Events" section.
Changes
In this case, waits were reported after applying PSU from 11.1.0.7.2 to 11.1.0.7.4 (for CRS, ASM & DB).
Cause
To view full details, sign in with your My Oracle Support account. |
|
Don't have a My Oracle Support account? Click to get started! |
In this Document
| Symptoms |
| Changes |
| Cause |
| Solution |
| References |