InnoDB Data Across Mounted Partition (no replies)

I am creating innodb table to store the data on mounted partition("/var/log/storage/MySQL") with following syntax:

create table InnoDB_Test(
a INT
) DATA DIRECTORY='/var/log/storage/MySQL'
INDEX DIRECTORY='/var/log/storage/MySQL'
engine=InnoDB;

Following are my partitons (output of df -h):
________________________________________________________
| Partition | Size | free | Used | Available | Mounted @
| /dev/sda2 | 6.5G | 3.6G | 2.6G | 59% | /
| /dev/sda1 | 0.3G | 0.3G | 0.3G | 9% | /boot
| /dev/sda6 | 5.3G | 0.2G | 5.0G | 1% | /var/log/storage
__________________________________________________________

But it is not storing the data in /var/log/storage/MySQL, rather it is storing it in /var/lib/mysql.

If I create MyISAM table using following syntax, then it is storing the data across mounted partition.

create table MyISAM_Test(
a INT
) DATA DIRECTORY='/var/log/storage/MySQL'
INDEX DIRECTORY='/var/log/storage/MySQL'
engine=MyISAM;

I have enabled innodb_file_per_table and have_symlink global variable.

System Configuration:
- CentOS 7.1
- MariaDB 5.5
- 2GB RAM
- 30GB Flash

Please tell me the way how I can store the InnoDB tables data on mounted partition ?
How this is working for MyISAM and not working for InnoDB ?