I have run the following script to configure an iSCSI switch using Equallogic MEM on a vSphere ESXi 5.1 host:
setup.pl --configure --server=hostname [--username=username] [--password=password] --nics=NIC1,NIC2,... --ips=IP1,IP2,... [--vswitch=vswitchname] [--mtu=mtu]...