I don't quite understand what multipath is, but when I deployed it in my iSCSI
repository, only one ip address is specified when installing hosted-engine. However, in
order to specify the second subnet, I went to my host portal where I was deploying the
engine and added the second subnet in the Storage -> iSCSi targets section. It should
be noted that the storage is connected to hosts directly. However, after that when adding
subsequent hosts through the engine I saw through their administration panels that in
Storage -> iScsi section there are also two targets with different subnets and the
command on the host multipath -ll also showed the normal operation of the two targets. I
hope this helps you in any way.