SIO operates over TCP/IP and does not leverage PP for failover or load balancing. For this in SIO you could just assign two IPs per SDC or leverage networking based failover/load balancing
Hi Experts, In case of a SDC  installed on a application server already connected to a SAN array via HBA and having  PP installed, Will PP provide multipathing for ScaleIO  IO's as well ?
ScaleIO multipathing