ORA-00251

Error: ORA-00251: LOG_ARCHIVE_DUPLEX_DEST cannot be the same destination as string string

Causa: The destination specified by the LOG_ARCHIVE_DUPLEX_DEST parameter is the same as the destination specified by an ALTER SYSTEM ARCHIVE LOG START TO command.

Acción: Specify a different destination for parameter LOG_ARCHIVE_DUPLEX_DEST, or specify a different destination with the ALTER SYSTEM command.