Is the 2109 zoned to allow the z10 to access the storage device? Did you IPL a linux guest or LPAR and use it to drive a fabric login or fabric discovery ?
The ESS and DS4700 will only show you the hosts which have contacted them, since they don't do discovery of the host systems. The z10 will not drive any discovery actions in the SAN by itself ( unlike other platforms ) You have to bring up a Linux image and do a SAN fabric / device scan or attempt to configure the FCP storage from z/VM. -- Jay Brenneman
