RMAN channels perform the primary job of database duplication
Each channel corresponds to an Oracle Database server session that performs the duplication tasks. Depending on the duplication technique, RMAN uses either auxiliary channels or target channels.
Automatically allocate channels by using the
Manually allocate channels by using the
If no automatic channels are configured, then you can manually allocate at least one channel before you begin the duplication. The
ALLOCATE command that allocates channels must be in the same
RUN block as the
RMAN can use the same channel configurations on the source database for duplication on the destination host even if the source database channels do not specify the AUXILIARY option.