Oracle LOB data can exist in several formats in Oracle:
Character datatypes:
LONG
CLOB
NCLOB
Binary datatypes:
LONG RAW
BLOB
BFILE
BFILE points to file contents stored outside of the Oracle database.
For those types stored in the database (all types except BFILE), Oracle records the content of the LOB in the redo files. The Mirror Replication Agent reads the LOB data from the redo file and submits the data for replication. Because BFILE type data is stored outside of the database, Mirror Replication Agent does not support BFILE data.
