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RMAN Duplicate from RAC backup fails ORA-38856 (Doc ID 334899.1)

Last updated on FEBRUARY 02, 2022

Applies to:

Oracle Database - Enterprise Edition - Version to [Release 10.2 to 11.2]
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.


RMAN duplicate using a backup taken from a RAC installation fails on opening the clone instance with
RMAN-06136: ORACLE error from auxiliary database:

ORA-38856: cannot mark instance UNNAMED_INSTANCE_2 (redo thread 2) as enabled

The target database is a RAC two node database being duplicated to a single instance database.


RMAN is being used to clone from a source backup  taken from a RAC database.


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