Command to do active duplicate for Oracle Database

1. First login to target server

2. Validate tns connectivity between Source DB and Target DB

3. Prepare and validate space availability

4. Startup mount the target and source database ( If not done already)

5. Use the below command to do active duplicate

rman auxiliary sys/PASS@target_DB target sys/PASS@source_DB log=/tmp/active_duplicate.log <<EOF
run {
allocate channel ch1 type disk;
allocate auxiliary channel stby1 type disk;
DUPLICATE TARGET DATABASE TO 'newdb' FROM ACTIVE DATABASE nofilenamecheck noredo;
}
EOF