Configuring RMAN Channels for Use in Oracle Database Duplication

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.

Use one of the following methods to configure channels:
  • Automatically allocate channels by using the CONFIGURE command

  • Manually allocate channels by using the ALLOCATE command

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 DUPLICATE command.

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.