查看scan的配置信息
[root@racnode1 ~]# srvctl config scan
SCAN name: racscan, Network: 1/192.168.100.0/255.255.255.0/ens192
SCAN VIP name: scan1, IP: /racscan/192.168.100.163
查看scan的狀態及scanip所處的節點
[root@racnode1 ~]# srvctl status scan
SCAN VIP scan1 is enabled
SCAN VIP scan1 is running on node racnode2
[root@racnode1 ~]#
查看SCAN Listener
[root@racnode1 ~]# srvctl config scan_listener
SCAN Listener LISTENER_SCAN1 exists. Port: TCP:1521
[root@racnode1 ~]#
添加SCANIP操作步驟
1、添加hosts解析【雙節點】
[root@racnode1 ~]# cat /etc/hosts
127.0.0.1 localhost localhost.localdomain localhost4 localhost4.localdomain4
::1 localhost localhost.localdomain localhost6 localhost6.localdomain6
192.168.100.159 racnode1
192.168.100.160 racnode2
192.168.0.159 racnode1prv
192.168.0.160 racnode2prv
192.168.100.161 racnode1vip
192.168.100.162 racnode2vip
192.168.100.163 racscan
192.168.100.164 racscan 【新增的SCAN IP地址】
[root@racnode1 ~]#
2、停止SCAN監聽，注意先停監聽才能停SCAN
[root@racnode1 ~]# srvctl stop scan_listener
[root@racnode1 ~]# srvctl stop scan
[root@racnode1 ~]# srvctl status scan
SCAN VIP scan1 is enabled
SCAN VIP scan1 is not running
[root@racnode1 ~]#
3、配置SCAN，需要使用root權限操作
[root@racnode1 ~]# srvctl modify scan -n racscan 【更改scanip的配置】
[root@racnode1 ~]# srvctl modify scan_listener -u 【更改SCAN監聽的配置】
[root@racnode1 ~]#
4、啓動SCAN，然後啓動SCAN監聽
[root@racnode1 ~]# srvctl start scan 【啓動scan】
[root@racnode1 ~]# srvctl start scan_listener 【啓動scan監聽】
[root@racnode1 ~]# srvctl status scan 【查看scan狀態】
SCAN VIP scan1 is enabled
SCAN VIP scan1 is running on node racnode2
SCAN VIP scan2 is enabled
SCAN VIP scan2 is running on node racnode1
[root@racnode1 ~]# srvctl status scan_listener
SCAN Listener LISTENER_SCAN1 is enabled
SCAN listener LISTENER_SCAN1 is running on node racnode2
SCAN Listener LISTENER_SCAN2 is enabled
SCAN listener LISTENER_SCAN2 is running on node racnode1
[root@racnode1 ~]# srvctl config scan
SCAN name: racscan, Network: 1/192.168.100.0/255.255.255.0/ens192
SCAN VIP name: scan1, IP: /racscan/192.168.100.163
SCAN VIP name: scan2, IP: /racscan/192.168.100.164
[root@racnode1 ~]#