更改 VIP 地址

更改 VIP 地址

步骤：
1.  确定用于支持 VIP 的接口：
  $ ifconfig -a  
 
2.  停止依赖 VIP 的所有资源：
  $ srvctl stop instance -d DB -i DB1  
  $ srvctl stop asm -n node1  
  # srvctl stop nodeapps -n node1  
   
3.  验证 VIP 不再处于运行状态：  
  $ ifconfig -a  或 $ crs_stat -t
 
4.  更改 /etc/hosts 中的 IP 和 DNS。

5. 使用 srvctl 修改 VIP 地址：
  # srvctl modify nodeapps -n node1 -A 192.168.2.125/255.255.255.0/eth0  
 
6. 启动 nodeapps 及依赖它的所有资源：
  # srvctl start nodeapps -n node1  
 
7. 对下一节点重复执行从步骤 1 开始的步骤。  

示例：

RACDB1@rac1 /home/oracle$ crs_stat -tName           Type           Target    State     Host------------------------------------------------------------ora....B1.inst application    ONLINE    ONLINE    rac1ora....B2.inst application    ONLINE    ONLINE    rac2ora....DB1.srv application    ONLINE    ONLINE    rac1ora....DB2.srv application    ONLINE    ONLINE    rac2ora.....TAF.cs application    ONLINE    ONLINE    rac1ora.RACDB.db   application    ONLINE    ONLINE    rac1ora....SM1.asm application    ONLINE    ONLINE    rac1ora....C1.lsnr application    ONLINE    ONLINE    rac1ora.rac1.gsd   application    ONLINE    ONLINE    rac1ora.rac1.ons   application    ONLINE    ONLINE    rac1ora.rac1.vip   application    ONLINE    ONLINE    rac1ora....SM2.asm application    ONLINE    ONLINE    rac2ora....C2.lsnr application    ONLINE    ONLINE    rac2ora.rac2.gsd   application    ONLINE    ONLINE    rac2ora.rac2.ons   application    ONLINE    ONLINE    rac2ora.rac2.vip   application    ONLINE    ONLINE    rac2--1.  确定用于支持 VIP 的接口RACDB1@rac1 /home/oracle$ ifconfig -aeth0      Link encap:Ethernet  HWaddr 00:0C:29:2C:74:42          inet addr:192.168.1.101  Bcast:192.168.1.255  Mask:255.255.255.0          inet6 addr: fe80::20c:29ff:fe2c:7442/64 Scope:Link          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1          RX packets:9033 errors:0 dropped:0 overruns:0 frame:0          TX packets:9590 errors:0 dropped:0 overruns:0 carrier:0          collisions:0 txqueuelen:1000          RX bytes:1043771 (1019.3 KiB)  TX bytes:1007598 (983.9 KiB)          Interrupt:185 Base address:0x1480eth0:1    Link encap:Ethernet  HWaddr 00:0C:29:2C:74:42          inet addr:192.168.1.201  Bcast:192.168.1.255  Mask:255.255.255.0          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1          Interrupt:185 Base address:0x1480   --rac1的vip信息eth1      Link encap:Ethernet  HWaddr 00:0C:29:2C:74:4C          inet addr:192.168.2.101  Bcast:192.168.2.255  Mask:255.255.255.0          inet6 addr: fe80::20c:29ff:fe2c:744c/64 Scope:Link          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1          RX packets:93042 errors:0 dropped:0 overruns:0 frame:0          TX packets:141573 errors:0 dropped:0 overruns:0 carrier:0          collisions:0 txqueuelen:1000          RX bytes:56393420 (53.7 MiB)  TX bytes:125205647 (119.4 MiB)          Interrupt:193 Base address:0x1800eth2      Link encap:Ethernet  HWaddr 00:0C:29:2C:74:56          inet addr:192.168.246.128  Bcast:192.168.246.255  Mask:255.255.255.0          inet6 addr: fe80::20c:29ff:fe2c:7456/64 Scope:Link          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1          RX packets:3887 errors:0 dropped:0 overruns:0 frame:0          TX packets:2442 errors:0 dropped:0 overruns:0 carrier:0          collisions:0 txqueuelen:1000          RX bytes:359518 (351.0 KiB)  TX bytes:353656 (345.3 KiB)          Interrupt:169 Base address:0x1880lo        Link encap:Local Loopback          inet addr:127.0.0.1  Mask:255.0.0.0          inet6 addr: ::1/128 Scope:Host          UP LOOPBACK RUNNING  MTU:16436  Metric:1          RX packets:35246 errors:0 dropped:0 overruns:0 frame:0          TX packets:35246 errors:0 dropped:0 overruns:0 carrier:0          collisions:0 txqueuelen:0          RX bytes:14195977 (13.5 MiB)  TX bytes:14195977 (13.5 MiB)sit0      Link encap:IPv6-in-IPv4          NOARP  MTU:1480  Metric:1          RX packets:0 errors:0 dropped:0 overruns:0 frame:0          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0          collisions:0 txqueuelen:0          RX bytes:0 (0.0 b)  TX bytes:0 (0.0 b)--2.  停止依赖 VIP 的所有资源RACDB1@rac1 /home/oracle$ srvctl stop instance -d racdb -i racdb1RACDB1@rac1 /home/oracle$ srvctl stop asm -n rac1RACDB1@rac1 /home/oracle$ srvctl stop nodeapps -n rac1--3.  验证 VIP 不再处于运行状态RACDB1@rac1 /home/oracle$ crs_stat -tName           Type           Target    State     Host------------------------------------------------------------ora....B1.inst application    OFFLINE   OFFLINEora....B2.inst application    ONLINE    ONLINE    rac2ora....DB1.srv application    ONLINE    OFFLINEora....DB2.srv application    ONLINE    ONLINE    rac2ora.....TAF.cs application    ONLINE    ONLINE    rac1ora.RACDB.db   application    ONLINE    ONLINE    rac1ora....SM1.asm application    OFFLINE   OFFLINEora....C1.lsnr application    OFFLINE   OFFLINEora.rac1.gsd   application    OFFLINE   OFFLINEora.rac1.ons   application    OFFLINE   OFFLINEora.rac1.vip   application    OFFLINE   OFFLINEora....SM2.asm application    ONLINE    ONLINE    rac2ora....C2.lsnr application    ONLINE    ONLINE    rac2ora.rac2.gsd   application    ONLINE    ONLINE    rac2ora.rac2.ons   application    ONLINE    ONLINE    rac2ora.rac2.vip   application    ONLINE    ONLINE    rac2RACDB1@rac1 /home/oracle$ ifconfig -aeth0      Link encap:Ethernet  HWaddr 00:0C:29:2C:74:42          inet addr:192.168.1.101  Bcast:192.168.1.255  Mask:255.255.255.0          inet6 addr: fe80::20c:29ff:fe2c:7442/64 Scope:Link          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1          RX packets:10401 errors:0 dropped:0 overruns:0 frame:0          TX packets:10958 errors:0 dropped:0 overruns:0 carrier:0          collisions:0 txqueuelen:1000          RX bytes:1190013 (1.1 MiB)  TX bytes:1156506 (1.1 MiB)          Interrupt:185 Base address:0x1480--没有了eth0:1，说明 VIP 不再处于运行状态eth1      Link encap:Ethernet  HWaddr 00:0C:29:2C:74:4C          inet addr:192.168.2.101  Bcast:192.168.2.255  Mask:255.255.255.0          inet6 addr: fe80::20c:29ff:fe2c:744c/64 Scope:Link          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1          RX packets:96080 errors:0 dropped:0 overruns:0 frame:0          TX packets:144589 errors:0 dropped:0 overruns:0 carrier:0          collisions:0 txqueuelen:1000          RX bytes:57752620 (55.0 MiB)  TX bytes:126806811 (120.9 MiB)          Interrupt:193 Base address:0x1800eth2      Link encap:Ethernet  HWaddr 00:0C:29:2C:74:56          inet addr:192.168.246.128  Bcast:192.168.246.255  Mask:255.255.255.0          inet6 addr: fe80::20c:29ff:fe2c:7456/64 Scope:Link          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1          RX packets:4214 errors:0 dropped:0 overruns:0 frame:0          TX packets:2685 errors:0 dropped:0 overruns:0 carrier:0          collisions:0 txqueuelen:1000          RX bytes:389146 (380.0 KiB)  TX bytes:383602 (374.6 KiB)          Interrupt:169 Base address:0x1880lo        Link encap:Local Loopback          inet addr:127.0.0.1  Mask:255.0.0.0          inet6 addr: ::1/128 Scope:Host          UP LOOPBACK RUNNING  MTU:16436  Metric:1          RX packets:37774 errors:0 dropped:0 overruns:0 frame:0          TX packets:37774 errors:0 dropped:0 overruns:0 carrier:0          collisions:0 txqueuelen:0          RX bytes:14921453 (14.2 MiB)  TX bytes:14921453 (14.2 MiB)sit0      Link encap:IPv6-in-IPv4          NOARP  MTU:1480  Metric:1          RX packets:0 errors:0 dropped:0 overruns:0 frame:0          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0          collisions:0 txqueuelen:0          RX bytes:0 (0.0 b)  TX bytes:0 (0.0 b)--4.  更改 /etc/hosts 中的 IP 和 DNSRACDB1@rac1 /home/oracle$ more /etc/hosts127.0.0.1       localhost.localdomain   localhost::1     localhost6.localdomain6 localhost6##Public Network - (eth0)##Private Interconnect - (eth1)##Public Virtual IP (VIP) addresses - (eth0)192.168.1.101   rac1192.168.1.102   rac2192.168.2.101   rac1-priv192.168.2.102   rac2-priv192.168.1.201   rac1-vip192.168.1.202   rac2-vipRACDB1@rac1 /home/oracle$ su - rootPassword:[root@rac1 ~]# vi /etc/hosts[root@rac1 ~]# cat /etc/hosts127.0.0.1       localhost.localdomain   localhost::1     localhost6.localdomain6 localhost6##Public Network - (eth0)##Private Interconnect - (eth1)##Public Virtual IP (VIP) addresses - (eth0)192.168.1.101   rac1192.168.1.102   rac2192.168.2.101   rac1-priv192.168.2.102   rac2-priv192.168.10.201  rac1-vip  --新更改的vip192.168.10.202  rac2-vip  --新更改的vip--5. 使用 srvctl 修改 VIP 地址 ,root用户操作[root@rac1 ~]# srvctl modify nodeapps -n rac1 -A 192.168.10.201/255.255.255.0/eth0--6. 启动 nodeapps 及依赖它的所有资源，并确认VIP的更改[root@rac1 ~]# srvctl start nodeapps -n rac1[root@rac1 ~]# srvctl start asm -n rac1[root@rac1 ~]# srvctl start instance -d racdb -i racdb1[root@rac1 ~]# crs_stat -tName           Type           Target    State     Host------------------------------------------------------------ora....B1.inst application    ONLINE    ONLINE    rac1ora....B2.inst application    ONLINE    ONLINE    rac2ora....DB1.srv application    ONLINE    ONLINE    rac1ora....DB2.srv application    ONLINE    ONLINE    rac2ora.....TAF.cs application    ONLINE    ONLINE    rac1ora.RACDB.db   application    ONLINE    ONLINE    rac1ora....SM1.asm application    ONLINE    ONLINE    rac1ora....C1.lsnr application    ONLINE    ONLINE    rac1ora.rac1.gsd   application    ONLINE    ONLINE    rac1ora.rac1.ons   application    ONLINE    ONLINE    rac1ora.rac1.vip   application    ONLINE    ONLINE    rac1ora....SM2.asm application    ONLINE    ONLINE    rac2ora....C2.lsnr application    ONLINE    ONLINE    rac2ora.rac2.gsd   application    ONLINE    ONLINE    rac2ora.rac2.ons   application    ONLINE    ONLINE    rac2ora.rac2.vip   application    ONLINE    ONLINE    rac2[root@rac1 ~]# ifconfig -aeth0      Link encap:Ethernet  HWaddr 00:0C:29:2C:74:42          inet addr:192.168.1.101  Bcast:192.168.1.255  Mask:255.255.255.0          inet6 addr: fe80::20c:29ff:fe2c:7442/64 Scope:Link          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1          RX packets:13376 errors:0 dropped:0 overruns:0 frame:0          TX packets:13887 errors:0 dropped:0 overruns:0 carrier:0          collisions:0 txqueuelen:1000          RX bytes:1503831 (1.4 MiB)  TX bytes:1470819 (1.4 MiB)          Interrupt:185 Base address:0x1480eth0:1    Link encap:Ethernet  HWaddr 00:0C:29:2C:74:42          inet addr:192.168.10.201  Bcast:192.168.10.255  Mask:255.255.255.0          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1          Interrupt:185 Base address:0x1480   --确认VIP已更改eth1      Link encap:Ethernet  HWaddr 00:0C:29:2C:74:4C          inet addr:192.168.2.101  Bcast:192.168.2.255  Mask:255.255.255.0          inet6 addr: fe80::20c:29ff:fe2c:744c/64 Scope:Link          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1          RX packets:123430 errors:0 dropped:0 overruns:0 frame:0          TX packets:156239 errors:0 dropped:0 overruns:0 carrier:0          collisions:0 txqueuelen:1000          RX bytes:83152785 (79.3 MiB)  TX bytes:131127699 (125.0 MiB)          Interrupt:193 Base address:0x1800eth2      Link encap:Ethernet  HWaddr 00:0C:29:2C:74:56          inet addr:192.168.246.128  Bcast:192.168.246.255  Mask:255.255.255.0          inet6 addr: fe80::20c:29ff:fe2c:7456/64 Scope:Link          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1          RX packets:4961 errors:0 dropped:0 overruns:0 frame:0          TX packets:3214 errors:0 dropped:0 overruns:0 carrier:0          collisions:0 txqueuelen:1000          RX bytes:454337 (443.6 KiB)  TX bytes:452528 (441.9 KiB)          Interrupt:169 Base address:0x1880lo        Link encap:Local Loopback          inet addr:127.0.0.1  Mask:255.0.0.0          inet6 addr: ::1/128 Scope:Host          UP LOOPBACK RUNNING  MTU:16436  Metric:1          RX packets:41946 errors:0 dropped:0 overruns:0 frame:0          TX packets:41946 errors:0 dropped:0 overruns:0 carrier:0          collisions:0 txqueuelen:0          RX bytes:17386653 (16.5 MiB)  TX bytes:17386653 (16.5 MiB)sit0      Link encap:IPv6-in-IPv4          NOARP  MTU:1480  Metric:1          RX packets:0 errors:0 dropped:0 overruns:0 frame:0          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0          collisions:0 txqueuelen:0          RX bytes:0 (0.0 b)  TX bytes:0 (0.0 b)    --7. 对下一节点重复执行从步骤 1 开始的步骤。  

注：
调整RAC环境中各节点VIP及虚拟主机名的步骤相对比较简单。但有一些需要重点注意的地方：
1）如果listener.ora、tnsnames.ora和初始化参数文件中使用的是VIP的地址而不是虚拟主机的名字，需要将其内容调整为新的VIP地址；
2）如果在调整VIP地址过程中同时修改了虚拟主机的名字，注意需要同时修改listener.ora、tnsnames.ora和初始化参数文件；
3）需要调整客户端tnsnames.ora文件中有关VIP的配置信息。

参考：
调整RAC虚拟IP地址（VIP）及虚拟主机名
http://space.itpub.net/519536/viewspace-678332

Administering System and Network Interfaces with OIFCFG

http://docs.oracle.com/cd/B19306_01/rac.102/b14197/adminopt.htm#RACAD922