Tuesday, 19 June 2012

ORA-38858: cannot mark redo thread string as enabled

ORA-38858: cannot mark redo thread string as enabled

Cause: The open resetlogs or standby activation operation failed because it needs to mark a redo thread as enabled. However, the control file was recreated with a MAXINSTANCES value smaller than the thread number of the redo thread.

Action: Recreate the control file with a larger MAXINSTANCES value.

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