Exadata: Severe Database Performance Issues After A Flash Disk Failure

(Doc ID 2217767.1)

Last updated on MAY 10, 2017

Applies to:

Oracle Exadata Storage Server Software - Version to [Release 12.1]
Information in this document applies to any platform.


Customer may experience severe database performance problem after a flash disk failure. We would see from the Exawatcher data and metrics collected from the cell where the flash failure occurred, that a significant amount of the IOs are skipping the flashcache and hitting the HDDs directly.





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