I am in learning phase of rman and practising from Documentation. I have just issued following command

RMAN > run {
allocate channel c1 type disk;
backup tablespace system;

In the result it is onl showing me the input parameter file but how do I know that where backed up dbf is stored. I can see that there is a file got created in ORACLE_HOME\database directory ... But is it the backed up tablespace? How can I change the backup location?