Oracle 11G RAC 修改IP

实验环境

类别	修改前	修改后
PUBLIC	172.18.4.182 rac1	192.168.56.10 rac1
	172.18.4.184 rac2	192.168.56.20 rac2
PRIVATE	10.10.10.10 rac1priv	20.20.20.10 rac1priv
	10.10.10.20 rac2priv	20.20.20.20 rac1priv
VIP	172.18.4.186 rac1vip	192.168.56.30 rac1vip
	172.18.4.187 rac2vip	192.168.56.40 rac2vip
SCAN	172.18.4. 172 scanip	192.168.56.50 scanip

修改Public Ip

• 1) 查看当前集群 Ip信息

[grid@rac1 ~]$ su root
Password:
[root@rac1 grid]# oifcfg getif
eth1  10.10.10.0  global  cluster_interconnect
eth0  172.18.4.0  global  public

• 2) 利用oifcfg命令，进行删除，修改public ip

[grid@rac1 ~]$ oifcfg delif -global eth0/172.18.4.0
[grid@rac1 ~]$ oifcfg setif -global eth0/192.168.56.0:public
[grid@rac1 ~]$ oifcfg getif
eth1  10.10.10.0  global  cluster_interconnect
eth0  192.168.56.0  global  public

• 3) OS修改/etc/hosts, ifcfg-eth0文件（On all node）

# vi /etc/hosts
# Do not remove the following line, or various programs
# that require network functionality will fail.
127.0.0.1       localhost.localdomain localhost
::1     localhost6.localdomain6 localhost6
# PUBLIC
192.168.56.10  rac1
192.168.56.20  rac2
--------------------------------------------------
# vi /etc/sysconfig/network-scripts/ifcfg-eth0
DEVICE=eth0
BOOTPROTO=none
ONBOOT=yes
HWADDR=08:00:27:2e:0e:4e
IPADDR=192.168.56.10
NETMASK=255.255.255.0
--------------------------------------------------
重启网络服务
# service network restart  

修改vip

• 1) 停止节点1的实例和vip资源

[grid@rac1 ~]$ srvctl stop instance -d orcl -n rac1
[grid@rac1 ~]$ srvctl stop vip -n rac1 -f

• 2) 查看原始vip资源配置

[grid@rac1 ~]$ srvctl config nodeapps -a
VIP exists.:rac1
VIP exists.: /rac1vip/192.168.56.30/255.255.255.0/eth0
VIP exists.:rac2
VIP exists.: /rac2vip/192.168.56.40/255.255.255.0/eth0

• 3) 修改/etc/hosts文件中的 vip

#VIP
192.168.56.30 rac1vip
192.168.56.40 rac2vip     

• 4) 使用root用户修改vip资源

[grid@rac1 ~]$ srvctl modify nodeapps -n rac1 -A 192.168.56.30/255.255.255.0/eth0
PRCN-2018 : Current user grid is not a privileged user
[grid@rac1 ~]$ su root
Password:
[root@rac1 grid]# srvctl modify nodeapps -n rac1 -A 192.168.56.30/255.255.255.0/eth0   

• 5) 启动服务

[grid@rac1 ~]$ srvctl start vip -n rac1
[grid@rac1 ~]$ srvctl start listener -n rac1
[grid@rac1 ~]$ srvctl start instance -d orcl -n rac1  

• 6) 集群其他节点请重复以上1-5的动作

修改SCAN IP

• 1) 以grid用户停止资源

[grid@rac1 ~]$ srvctl stop scan_listener
[grid@rac1 ~]$ srvctl stop scan

• 2) 修改/etc/hosts文件中的SCAN IP

#SCAN IP
192.168.56.50 scanip

• 3) 以root用户更改SCAN IP

[grid@rac1 ~]$ su root
Password:
[root@rac1 grid]# srvctl modify scan -n scanip

• 4) 以grid用户更改及启动资源

[grid@rac1 ~]$ srvctl modify scan_listener -u
[grid@rac1 ~]$ srvctl start scan_listener

• 5) 确认更改

[grid@rac1 ~]$ srvctl config scan
SCAN name: scanip, Network: 1/192.168.56.0/255.255.255.0/eth0
SCAN VIP name: scan1, IP: /scanip/192.168.56.50
[grid@rac1 ~]$ srvctl config scan_listener
SCAN Listener LISTENER_SCAN1 exists. Port: TCP:1521

修改Private IP

'在对集群中所有节点操作之前，请先备份 profile.xml 配置文件。作为 grid 用户执行'：
[grid@rac1 ~]$ cd /u01/11.2.0/grid/gpnp/rac1/profiles/peer/
[grid@rac1 peer]$ cp -p profile.xml profile.xml.bak

• 1) 确保集群中所有节点都已经启动并正常运行
• 2) 使用grid用户，获取以下信息，例如：

[grid@rac1 peer]$ oifcfg getif
eth1  10.10.10.0  global  cluster_interconnect
eth0  192.168.56.0  global  public

• 3) 加入新的private ip

[grid@rac1 peer]$ oifcfg setif -global eth1/20.20.20.0:cluster_interconnect
[grid@rac1 peer]$ oifcfg getif
eth1  10.10.10.0  global  cluster_interconnect
eth0  192.168.56.0  global  public
eth1  20.20.20.0  global  cluster_interconnect

• 4) 使用root用户关闭集群中所有节点并禁用集群（每个节点）

[grid@rac1 peer]$ su root
Password:
[root@rac1 peer]# crsctl stop crs
CRS-2791: Starting shutdown of Oracle High Availability Services-managed resources on 'rac1'
CRS-2673: Attempting to stop 'ora.crsd' on 'rac1'
CRS-2790: Starting shutdown of Cluster Ready Services-managed resources on 'rac1'
CRS-2673: Attempting to stop 'ora.CRSDG.dg' on 'rac1'
CRS-2677: Stop of 'ora.LISTENER_SCAN1.lsnr' on 'rac1' succeeded
CRS-2673: Attempting to stop 'ora.scan1.vip' on 'rac1'
CRS-2677: Stop of 'ora.LISTENER.lsnr' on 'rac1' succeeded
…
CRS-4133: Oracle High Availability Services has been stopped.
[root@rac1 peer]# crsctl disable crs
CRS-4621: Oracle High Availability Services autostart is disabled.

• 5) 更改/etc/hosts,ifcfg-eth1文件（两个节点）

# vi /etc/hosts
# PRIVATE
20.20.20.10  rac1priv
20.20.20.20  rac2priv
# vi /etc/sysconfig/network-scripts/ifcfg-eth1
# Intel Corporation 82540EM Gigabit Ethernet Controller
DEVICE=eth1
BOOTPROTO=none
ONBOOT=yes
HWADDR=08:00:27:b1:33:73
IPADDR=20.20.20.10
NETMASK=255.255.255.0
重启网络服务
# service network restart
确保能相互ping 通
[root@rac1 ~]# ping rac1priv
[root@rac1 ~]# ping rac2priv

• 6) 使用root用户激活集群并重新启动集群中所有节点（每个节点）

[grid@rac1 ~]$ su root
Password:
[root@rac1 grid]# crsctl enable crs
CRS-4622: Oracle High Availability Services autostart is enabled.
[root@rac1 grid]# crsctl start crs
CRS-4123: Oracle High Availability Services has been started.

• 7) 删除旧的private ip

[grid@rac2 ~]$ oifcfg delif -global eth1/10.10.10.0
[grid@rac2 ~]$ oifcfg getif
eth0  192.168.56.0  global  public
eth1  20.20.20.0  global  cluster_interconnect