从节点1漂移到节点2,这里的i参数是scan号,如scan1,scan2
srvctl relocate scan -i 1 -n rac02
从节点2漂移到节点1
srvctl relocate scan -i 1 -n rac01
[grid@rac01 ~]$ srvctl status scan
SCAN VIP scan1 is enabled
SCAN VIP scan1 is running on node rac02 ##当前scan在节点2上
[grid@rac01 ~]$ srvctl relocate scan -i 1 -n rac01
[grid@rac01 ~]$ srvctl status scan
SCAN VIP scan1 is enabled
SCAN VIP scan1 is running on node rac01 ##漂移到了节点1