DMX and AIX MPIO load balancing

Hello Guys,

I have DMX3-24 + AIX 5.3 server installed with EMC Symmetrix FCP MPIO Support and EMC Symmetrix AIX Support softwares at version 5.3.0.4.Can I get the native  AIX multipathing software MPIO to get load balancing for the devices assigned to this server from DMX ? .I could see the current setting at the HBA side is for fail_over and heard that to set it to round_robin to do loadbalancing I need some special software from EMC.Is that so?

Thanks in advance for your support

thanks
Jayan