mysql> select count(*) from t_prod;
+-----------+
| count(*)  |
+-----------+
| 952174654 |
+-----------+
1 row in set (0.00 sec)

# ls -lh /var/lib/mysql/prod | grep t_prod
-rw-rw----  1 mysql mysql   11K Jun  4  2007 t_prod.frm
-rw-rw----  1 mysql mysql  222G Apr 18 07:35 t_prod.MYD
-rw-rw----  1 mysql mysql  102G Apr 18 07:35 t_prod.MYI