The number you are looking for is not necessarily the number of luns but IT nexus. VPLEX supports 400 IT nexus per FE port. An IT nexus is a path from a hba to a port.
hello,  i would like to know the max number of volumes that can be seen through a vplex FE port?  like 4096 for a vmax fa port(mapping)
max number of volumes that can be seen through/accessed on a vplex FE port?