Customer dosen't want to use ULTRAPATH software solution for multipathing. He want to use another linux software for CentOS
Install the device-mapper-multipath-0.4.9-64.el6 RPM for x86_64
device-mapper-multipath provides tools to manage multipath devices by
instructing the device-mapper multipath kernel module what to do.
The tools are :
* multipath - Scan the system for multipath devices and assemble them.
* multipathd - Detects when paths fail and execs multipath to update things.
I sugest this link for download full linux packages for CentOS 6.4 for x86_64: