还有这么玩儿的？据我了解一个RAC只能有一个scan，而一个scan 只能有一个端口，你可以配置一个新的不同的监听名字，指定不同的端口，但监听IP地址设置成scan ip 试试就知道了。

https://www.modb.pro/doc/4966#pfb

给Oracle RAC配置SCAN IP & HAIP，然后重启生效
[root]# ./oifcfg setif -global en5/192.168.103.0:cluster_interconnect
[root]# cd /oracle/grid/bin; ./oifcfg setif -global en1/172.16.103.0:public
[root]# ./oifcfg getif –global
en0 172.16.102.0 global public
en4 192.168.102.0 global cluster_interconnect,asm
en5 192.168.103.0 global cluster_interconnect
en1 172.16.103.0 global public
[root]# ./srvctl add network -netnum 2 -subnet 172.16.103.0/255.255.255.0/en1
[root]# ./srvctl config network -netnum 2
[root]# ./srvctl add vip -node dbnode1 -netnum 2 -address dbnode1_vip2/255.255.255.0
[root]# ./srvctl add vip -node dbnode2 -netnum 2 -address dbnode2_vip2/255.255.255.0
[grid]$ srvctl add listener -listener listener2 -netnum 2 -endpoints “TCP:1522”
[root]# ./srvctl add scan -scanname dbscan103 -netnum 2
[root]# ./srvctl start vip -vip dbnode1_vip2; ./srvctl start vip -vip dbnode2_vip2
[grid]$ srvctl start listener -listener listener2; srvctl status listener -listener listener2
[root]# ./srvctl start scan -netnum 2
[grid]$ srvctl add scan_listener -netnum 2 -listener LISTENER_SCAN2 -endpoints “TCP:1522”
[grid]$ srvctl start scan_listener -netnum 2
[root]# ./srvctl config scan -netnum 2; ./srvctl status scan -netnum 2