RAC环境下修改IP —— 10G@慕课网原创_慕课网

由于种种原因，可能会遇到需要改服务器IP的情况，完全属于吃饱了撑着的事情，DBA就惨了，单实例如果有用dbconsole，还得重新删掉重建才能使用，rac环境就更悲催了！想想任某人对IT行业的评价，笑而不语…

修改前：这里用DNS解析就改DNS，没用DNS就改各个节点的hosts文件

[root@rac1 ~]# cat /etc/hosts

127.0.0.1 localhost.localdomain localhost

192.168.1.41 rac1.yang.com rac1

192.168.122.41 rac1-priv.yang.com rac1-priv

192.168.1.141 rac1-vip.yang.com rac1-vip

192.168.1.42 rac2.yang.com rac2

192.168.122.42 rac2-priv.yang.com rac2-priv

192.168.1.142 rac2-vip.yang.com rac2-vip

修改后：

[root@rac1 ~]# cat /etc/hosts

127.0.0.1 localhost.localdomain localhost

192.168.2.41 rac1.yang.com rac1

192.168.123.41 rac1-priv.yang.com rac1-priv

192.168.2.141 rac1-vip.yang.com rac1-vip

192.168.2.42 rac2.yang.com rac2

192.168.123.42 rac2-priv.yang.com rac2-priv

192.168.2.142 rac2-vip.yang.com rac2-vip

1：关闭数据库实例，asm实例，nodeapps

[oracle@rac2 ~]$ crs_stat -t -v

Name Type R/RA F/FT Target State Host

----------------------------------------------------------------------

ora.rac.db application 0/0 0/1 ONLINE ONLINE rac1

ora....c1.inst application 0/5 0/0 ONLINE ONLINE rac1

ora....c2.inst application 0/5 0/0 ONLINE ONLINE rac2

ora....SM1.asm application 0/5 0/0 ONLINE ONLINE rac1

ora....C1.lsnr application 0/5 0/0 ONLINE ONLINE rac1

ora.rac1.gsd application 0/5 0/0 ONLINE ONLINE rac1

ora.rac1.ons application 0/3 0/0 ONLINE ONLINE rac1

ora.rac1.vip application 0/0 0/0 ONLINE ONLINE rac1

ora....SM2.asm application 0/5 0/0 ONLINE ONLINE rac2

ora....C2.lsnr application 0/5 0/0 ONLINE ONLINE rac2

ora.rac2.gsd application 0/5 0/0 ONLINE ONLINE rac2

ora.rac2.ons application 0/3 0/0 ONLINE ONLINE rac2

ora.rac2.vip application 0/0 0/0 ONLINE ONLINE rac2

[oracle@rac2 ~]$ srvctl stop database -d rac -o immediate

[oracle@rac2 ~]$ crs_stop -all

2:操作系统级别修改ip地址，重启2个节点，发现VIP和listener不正常

[oracle@rac1 ~]$ ip a |grep inet |grep -v 'inet6'

inet 127.0.0.1/8 scope host lo

inet 192.168.2.41/24 brd 192.168.2.255 scope global eth0

inet 192.168.123.41/24 brd 192.168.123.255 scope global eth1

[oracle@rac2 ~]$ ip a |grep inet |grep -v 'inet6'

inet 127.0.0.1/8 scope host lo

inet 192.168.2.42/24 brd 192.168.2.255 scope global eth0

inet 192.168.123.42/24 brd 192.168.123.255 scope global eth1

[oracle@rac1 ~]$ crs_stat -t -v

Name Type R/RA F/FT Target State Host

----------------------------------------------------------------------

ora.rac.db application 0/0 0/1 ONLINE ONLINE rac1

ora....c1.inst application 0/5 0/0 ONLINE ONLINE rac1

ora....c2.inst application 0/5 0/0 ONLINE ONLINE rac2

ora....SM1.asm application 0/5 0/0 ONLINE ONLINE rac1

ora....C1.lsnr application 0/5 0/0 ONLINE OFFLINE

ora.rac1.gsd application 0/5 0/0 ONLINE ONLINE rac1

ora.rac1.ons application 0/3 0/0 ONLINE ONLINE rac1

ora.rac1.vip application 0/0 0/0 ONLINE OFFLINE

ora....SM2.asm application 0/5 0/0 ONLINE ONLINE rac2

ora....C2.lsnr application 0/5 0/0 ONLINE OFFLINE

ora.rac2.gsd application 0/5 0/0 ONLINE ONLINE rac2

ora.rac2.ons application 0/3 0/0 ONLINE ONLINE rac2

ora.rac2.vip application 0/0 0/0 ONLINE OFFLINE

3：修改2个节点的listener.ora文件，重启监听器，发现一切正常，难道这样就ok了？

[oracle@rac1 ~]$ cd $ORACLE_HOME/network/admin

[oracle@rac1 admin]$ grep -v '^#' listener.ora

LISTENER_RAC1 =

(DESCRIPTION_LIST =

(DESCRIPTION =

(ADDRESS = (PROTOCOL = TCP)(HOST = rac1-vip.yang.com)(PORT = 1521)(IP = FIRST))

(ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.2.41)(PORT = 1521)(IP = FIRST))

)

SID_LIST_LISTENER_RAC1 =

(SID_LIST =

(SID_DESC =

(ORACLE_HOME = /u01/app/oracle/product/10.2.0/db_1)

(SID_NAME = rac1)

)

(SID_DESC =

(SID_NAME = PLSExtProc)

(ORACLE_HOME = /u01/app/oracle/product/10.2.0/db_1)

(PROGRAM = extproc)

)

[oracle@rac1 ~]$ srvctl stop listener -n rac1

[oracle@rac1 ~]$ srvctl stop listener -n rac2

[oracle@rac1 ~]$ srvctl start listener -n rac1

[oracle@rac1 ~]$ srvctl start listener -n rac2

[oracle@rac1 ~]$ crs_stat -t -v

Name Type R/RA F/FT Target State Host

----------------------------------------------------------------------

ora.rac.db application 0/0 0/1 ONLINE ONLINE rac1

ora....c1.inst application 0/5 0/0 ONLINE ONLINE rac1

ora....c2.inst application 0/5 0/0 ONLINE ONLINE rac2

ora....SM1.asm application 0/5 0/0 ONLINE ONLINE rac1

ora....C1.lsnr application 0/5 0/0 ONLINE ONLINE rac1

ora.rac1.gsd application 0/5 0/0 ONLINE ONLINE rac1

ora.rac1.ons application 0/3 0/0 ONLINE ONLINE rac1

ora.rac1.vip application 0/0 0/0 ONLINE ONLINE rac1

ora....SM2.asm application 0/5 0/0 ONLINE ONLINE rac2

ora....C2.lsnr application 0/5 0/0 ONLINE ONLINE rac2

ora.rac2.gsd application 0/5 0/0 ONLINE ONLINE rac2

ora.rac2.ons application 0/3 0/0 ONLINE ONLINE rac2

ora.rac2.vip application 0/0 0/0 ONLINE ONLINE rac2

4：查看下VIP，发现依然是旧的，在2个节点上使用oifcfg改(使用root用户)，这里估计也可以使用vipca工具改

[oracle@rac1 ~]$ ip a |grep inet |grep -v 'inet6'

inet 127.0.0.1/8 scope host lo

inet 192.168.2.41/24 brd 192.168.2.255 scope global eth0

inet 192.168.1.141/24 brd 192.168.1.255 scope global eth0:1

inet 192.168.123.41/24 brd 192.168.123.255 scope global eth1

[root@rac1 ~]# cd /u01/app/oracle/product/10.2.0/crs_1/bin/

[root@rac1 bin]# ./oifcfg iflist

eth0 192.168.2.0

eth0 192.168.1.0

eth1 192.168.123.0

[root@rac1 bin]# ./oifcfg getif

[root@rac1 bin]# ./oifcfg setif -global eth0/192.168.2.0:public

[root@rac1 bin]# ./oifcfg setif -global eth1/192.168.123.0:cluster_interconnect

[root@rac1 bin]# ./oifcfg getif

eth0 192.168.2.0 global public

eth1 192.168.123.0 global cluster_interconnect

[root@rac2 bin]# ./oifcfg iflist

eth0 192.168.2.0

eth0 192.168.1.0

eth1 192.168.123.0

[root@rac2 bin]# ./oifcfg getif

eth0 192.168.2.0 global public

eth1 192.168.123.0 global cluster_interconnect

[oracle@rac1 ~]$ srvctl stop database -d rac -o immediate

[oracle@rac1 ~]$ srvctl stop listener -n rac1

[oracle@rac1 ~]$ srvctl stop listener -n rac2

[root@rac1 bin]# ./srvctl modify nodeapps -n rac1 -A 192.168.2.141/255.255.255.0/eth0

[root@rac2 bin]# ./srvctl modify nodeapps -n rac2 -A 192.168.2.142/255.255.255.0/eth0

5:修改完，发现新的VIP和旧的VIP都绑定在网卡上，于是重启2个节点，重启后只绑定了新的VIP，nodeapps，asm和数据库实例都随着crs的启动而自动online!(这里忘记使用service network restart命令测试，失败！)

[oracle@rac1 ~]$ crs_start -all

[oracle@rac1 ~]$ ip a |grep 'inet' |grep -v 'inet6'

inet 127.0.0.1/8 scope host lo

inet 192.168.2.41/24 brd 192.168.2.255 scope global eth0

inet 192.168.1.141/24 brd 192.168.1.255 scope global eth0:1

inet 192.168.2.141/24 brd 192.168.2.255 scope global secondary eth0:2

inet 192.168.123.41/24 brd 192.168.123.255 scope global eth1

[root@rac1 ~]# uptime

20:24:25 up 6 min, 1 user, load average: 2.80, 3.15, 1.50

[root@rac1 ~]# ip a |grep inet |grep -v inet6

inet 127.0.0.1/8 scope host lo

inet 192.168.2.41/24 brd 192.168.2.255 scope global eth0

inet 192.168.2.141/24 brd 192.168.2.255 scope global secondary eth0:1

inet 192.168.123.41/24 brd 192.168.123.255 scope global eth1

[root@rac1 ~]# cd /u01/app/oracle/product/10.2.0/crs_1/bin/

[root@rac1 bin]# ./oifcfg iflist

eth0 192.168.2.0

eth1 192.168.123.0

[root@rac1 bin]# ./oifcfg getif

eth0 192.168.2.0 global public

eth1 192.168.123.0 global cluster_interconnect

[root@rac1 bin]# su - oracle

[oracle@rac1 ~]$ crs_stat -t -v

Name Type R/RA F/FT Target State Host

----------------------------------------------------------------------

ora.rac.db application 0/0 0/1 ONLINE ONLINE rac2

ora....c1.inst application 0/5 0/0 ONLINE ONLINE rac1

ora....c2.inst application 0/5 0/0 ONLINE ONLINE rac2

ora....SM1.asm application 0/5 0/0 ONLINE ONLINE rac1

ora....C1.lsnr application 0/5 0/0 ONLINE ONLINE rac1

ora.rac1.gsd application 0/5 0/0 ONLINE ONLINE rac1

ora.rac1.ons application 0/3 0/0 ONLINE ONLINE rac1

ora.rac1.vip application 0/0 0/0 ONLINE ONLINE rac1

ora....SM2.asm application 0/5 0/0 ONLINE ONLINE rac2

ora....C2.lsnr application 0/5 0/0 ONLINE ONLINE rac2

ora.rac2.gsd application 0/5 0/0 ONLINE ONLINE rac2

ora.rac2.ons application 0/3 0/0 ONLINE ONLINE rac2

ora.rac2.vip application 0/0 0/0 ONLINE ONLINE rac2

6：测试下，发现正常！

[oracle@rhel6 admin]$ tail -17 tnsnames.ora

RAC =

(DESCRIPTION =

(ADDRESS_LIST =

(ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.2.141)(PORT = 1521))

(ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.2.142)(PORT = 1521))

)

(LOAD_BALANCE=YES)

(FAILOVER=YES)

(CONNECT_DATA =

(SERVICE_NAME = rac.yang.com)

(FAILOVER_MODE =

(TYPE = SELECT)

(METHOD = BASIC)

(RETRIES = 180)

(DELAY = 5))

)

[oracle@rhel6 admin]$ sqlplus sys/123456@rac as sysdba

SQL*Plus: Release 10.2.0.1.0 - Production on Mon Mar 26 20:28:02 2012

Connected to:

Oracle Database 10g Enterprise Edition Release 10.2.0.5.0 - 64bit Production

With the Partitioning, Real Application Clusters, OLAP, Data Mining

and Real Application Testing options

SQL> select instance_name from v$instance;

INSTANCE_NAME

----------------

rac1

备注：这里rac未使用网格控制器管理，后期可以研究下，修改完IP后，如何向网格控制器重新注册！数据库版本是10.2.0.5，稍后也将测试下11g的rac,另外修改前还是备份下OCR比较保险点，有闲功夫的话，数据库也备份一次吧！

ipvipracRAC