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

Last updated on DECEMBER 22, 2016

Applies to:

Oracle Database - Enterprise Edition - Version 10.2.0.1 to 12.1.0.1 [Release 10.2 to 12.1]
Information in this document applies to any platform.

Symptoms

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.

Changes

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

Cause

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