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Cannot Mount Database Due To ORA-27072: File I/O error When Control File Is In NFS Storage (Doc ID 2678310.1)

Last updated on JUNE 18, 2020

Applies to:

Oracle Database - Enterprise Edition - Version 11.2.0.1 to 11.2.0.4 [Release 11.2]
Oracle Database - Standard Edition - Version 11.2.0.1 to 11.2.0.4 [Release 11.2]
Information in this document applies to any platform.

Symptoms

The database fails to mount with following errors.

 

I/O error is raised in the control file which resides on NFS.
Taking strace output of the startup process will show "pread" system call to the control file raising EIO (Input/output error), but there is no ownership or permission problems with the file, and the file can be accessed by the oracle user using "vi" or "strings" command with no errors.

 

Changes

NFS version may have been upgraded.

 

Cause

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In this Document
Symptoms
Changes
Cause
Solution
References


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