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"ORA-15055: Unable to Connect to ASM Instance" Error When Starting an Instance (Doc ID 889137.1)

Last updated on AUGUST 13, 2023

Applies to:

Oracle Database - Enterprise Edition - Version and later
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 Backup Service - Version N/A and later
Information in this document applies to any platform.


Trying to start an instance that has spfile in the ASM gives the following error:




Similar error is expected when instance is trying to reach ASM to get control files or datafiles even if the database is using init.ora instead of spfile in ASM.   The ORA-15055 error occurs when the instance tries to connect to ASM for the first time.


Change of the permission of the oracle binary in the ASM_HOME/bin directory.


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