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Local Connection As Non-Oracle user Fail With ORA-27061: waiting for async I/Os failed (Doc ID 1365626.1)

Last updated on DECEMBER 26, 2019

Applies to:

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


The involved server normally hosts a physical standby database.
The OS of the server has been upgraded recently (in this case from HP-UX 11.23 to 11.31) and the standby database kept working successfully.
For the OS upgrade of the primary server, a switch over was done making the standby database now primary.
The switch over caused the local connection to the new primary database to fail as below:

Oracle Net connections using a TNS alias are still successful.
Local connections setting ORACLE_SID and issuing sqlplus <user>/<pw> all fail with the async error except for the oracle user.


With the OS upgrade, some group privileges were changed.


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