Map a lun of DS4700 to VIS6600, but VIS cannot recognize the lun.
Modify the host group type of DS4700 to Linux.
There is default host group in DS4700, whose type is HP-UX. DS4700 is mapped to VIS6600 as this type, but the system of VIS6600 is Linux. So VIS cannot recognize the LUN of DS4700.
Take care of host type when using VIS to take over array of IBM.