The aggregated resources would be like this.  You create a storage group called MyStorage; in that group you assign 2 FA ports and 10 Symmetrix devices.  Any host WWN that you assign to that storage group is automatically configured to see all the devices in that group.  You do not have to go and mask it on either symmetrix port.  The same will hold true with adding additional symmetrix volumes to the group it will map/mask them on the FA's in the group and to the wwn's assigned to the group.
"for Symmetrix V-Max, a storage administrator can group initiators,storage ports, and storage devices at an (logical) application level andperform the mapping and masking on the aggregated resources, a processthat is orders of magnitude simpler, easier and quicker than the"manual" device-by-device approach historically required by virtuallyevery storage array in the market"  could any one help to understand the "aggregated resources"?  what is special with ECC 7.x version with respect to masking? Any major change??
s there anything which eliminates masking