$storage = {
             'SAN_01' => {
                           'RDUB090' => [
                                          '90:39:12:6U',
                                          '34:34:36:7Z',
                                          '87:23:89:6N',
                                          '34:38:36:7U'
                                        ],
                           'RDUB010' => [
                                          '34:34:36:7U',
                                          '87:23:89:6C'
                                        ]
                         },
             'SAN_02' => {
                           'RDUB070' => [
                                          '90:12:39:7Z',
                                          '36:34:34:6U',
                                          '89:23:87:6N',
                                          '34:36:38:7U'
                                        ],
                           'RDUB030' => [
                                          '34:7U:34:36',
                                          '87:89:23:6C'
                                        ]
                         }
           };