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ORA-01677:

standby file name convert parameters differ from other instance
Cause: The DB_FILE_STANDBY_NAME_CONVERT or LOG_FILE_STANDBY_NAME_CONVERT initialization parameters are not the same as in other instances that already have the database mounted.
Action: Change initialization parameters DB_FILE_STANDBY_NAME_CONVERT and LOG_FILE_STANDBY_NAME_CONVERT to match other instances.