Having two data folder in my postgresql setup- Postgresql

I am using centos 6 and installed Postgresql_9.4 using the following commands yum install postgresql postgresql-contrib postgresql-client pgadmin3 yum install postgresql-server After that i verified my config file or "Show data_directory" command to verify that data folder path. Its showing /var/lib/pgsql/9.4/data but am also having the another data folder in this location /var/lib/pgsql/data. data path 1 --> /var/lib/pgsql/9.4/data data path 2 --> /var/lib/pgsql/data My question is which is my original data folder ??. And Also my exact data folder is configured in config file means what is the use of another data folder ?