About RAC modifying scan IP

About modification scan ip when , No need to stop the database instance ,asm or crs

for example ：scan ip Need from 192.168.10.24 Change it to 192.168.10.25

1. At the node 1, use root User access grid Installed bin Catalog , View the current scan ip State information

 [[email protected] ~]# cd /grid/app/11g/bin
 [[email protected] bin]# ./srvctl config scan
 SCAN name: rac-cluster-scan, Network:1/192.168.10.0/255.255.255.0/eth0 
 SCAN VIP name: scan1, IP:/rac-cluster-scan/192.168.10.24

2. use root The user stopped scan_listener,scan ip service

 [[email protected] bin]# ./srvctl stop scan_listener 
 [[email protected] bin]# ./srvctl stop scan 
 [[email protected] bin]#./srvctl status scan 
 SCAN VIP scan1 is enabled 
 SCAN VIP scan1 is not running

3. At all nodes /etc/hosts Modify new... In the file scan ip Address （ Remember that all nodes need to be modified ！！！）

 [[email protected] bin]# vi /etc/hosts
 192.168.10.20 rac1
 192.168.10.21 rac2
    
 192.168.10.22 rac1-vip
 192.168.10.23 rac2-vip
     
 100.0.0.101 rac1-priv
 100.0.0.102 rac2-priv
    
 192.168.10.25 rac-scan

4. use root The user to change scan ip

[[email protected] bin]# ./srvctl modify scan -n 192.168.10.25

5. Confirm after modification

[[email protected] bin]# ./srvctl config scan
SCAN name: 192.168.10.25, Network: 1/192.168.10.0/255.255.255.0/eth0
SCAN VIP name: scan1, IP: /192.168.10.25/192.168.10.25

You can see that it has been modified .

6. start-up scan_listener,scan service

[[email protected] bin]# ./srvctl start scan
[[email protected] bin]# ./srvctl start scan_listener

7. Conduct ping test

[[email protected] bin]# ping 192.168.10.25
PING 192.168.10.25 (192.168.10.25) 56(84) bytes of data.
64 bytes from 192.168.10.25: icmp_seq=1 ttl=64 time=1.01 ms
64 bytes from 192.168.10.25: icmp_seq=2 ttl=64 time=1.11ms
64 bytes from 192.168.10.25: icmp_seq=3 ttl=64 time=0.445 ms
64 bytes from 192.168.10.25: icmp_seq=4 ttl=64 time=0.517 ms

8. confirm scan,scan_listener.ora state

[[email protected] ~]$ ./crs_stat -t | grep scan
ora.scan1.vip  ora....ip.type ONLINE    ONLINE   rac2   
[[email protected] ~]$ ./crs_stat -t | grep lsnr
ora....ER.lsnr ora....er.type ONLINE    ONLINE   rac1        
ora....N1.lsnr ora....er.type ONLINE    ONLINE   rac2        
ora....H1.lsnr application    ONLINE    ONLINE   rac1        
ora....H2.lsnr application    ONLINE    ONLINE   rac2