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Tuning 'Disk file operations I/O' (Doc ID 2494106.1)

Last updated on APRIL 17, 2023

Applies to:

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


 The purpose of this note is to help troubleshoot issues where there are significant waits for the event 'Disk file operations I/O'.


Troubleshooting Steps

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In this Document
Troubleshooting Steps
 What is a 'disk file operations I/O' wait?
 What should be collected for initial diagnosis of 'disk file operations I/O' waits ?
 What causes high waits for 'disk file operations I/O'?
  Issues affecting disk file operations I/O performance

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