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标题: 11g rac 修改 ip 系列之十：修改主机名 [打印本页]

作者: 郑全 时间: 2018-8-23 10:10
标题: 11g rac 修改 ip 系列之十：修改主机名
本帖最后由郑全于 2018-8-24 17:41 编辑

背景：
   系统刚建好，老板说，主机名能否修改一下，天，查了一下 metalink，说不能修改主机名，要修改，办法只有一个，删除集群，重建。
   改吗，一般不改。
   但既然有需求，存在就有合理性。

目标：
   把主机名由 host01,host02修改为 rac01,rac02
   相关的主机名称都修改。

步骤：
   好吧，开干:

  1 原来的Hosts文件配置

192.0.3.111  host01.example.com host01
192.0.3.112  host02.example.com host02
10.0.3.101 host01-priv.example.com host01-priv
10.0.3.102 host02-priv.example.com host02-priv
192.0.3.105  host01-vip.example.com  host01-vip
192.0.3.106  host02-vip.example.com  host02-vip
192.0.3.100  cluster01-scan.example.com cluster01-scan

2. 卸载CRS,在非最后一个节点运行
    [root@host01 ~]# /u01/app/11.2.0/grid/crs/install/rootcrs.pl -verbose -deconfig  -force
  。。。
  CRS-2677: Stop of 'ora.gpnpd' on 'host01' succeeded
  CRS-2793: Shutdown of Oracle High Availability Services-managed resources on 'host01' has completed
  CRS-4133: Oracle High Availability Services has been stopped.
  Successfully deconfigured Oracle clusterware stack on this node

  3.在最后一个节点卸载 crs

   [root@host02 ~]#/u01/app/11.2.0/grid/crs/install/rootcrs.pl -verbose -deconfig  -force  -lastnode
...
CRS-4611: Successful deletion of voting disk +DATA.
ASM de-configuration trace file location: /tmp/asmcadc_clean2018-08-24_04-12-50-PM.log
ASM Clean Configuration START
ASM Clean Configuration END
ASM with SID +ASM1 deleted successfully. Check /tmp/asmcadc_clean2018-08-24_04-12-50-PM.log for details.
CRS-2791: Starting shutdown of Oracle High Availability Services-managed resources on 'host02'
CRS-2673: Attempting to stop 'ora.mdnsd' on 'host02'
CRS-2673: Attempting to stop 'ora.crf' on 'host02'
CRS-2673: Attempting to stop 'ora.ctssd' on 'host02'
CRS-2673: Attempting to stop 'ora.asm' on 'host02'
CRS-2677: Stop of 'ora.mdnsd' on 'host02' succeeded
CRS-2677: Stop of 'ora.crf' on 'host02' succeeded
CRS-2677: Stop of 'ora.asm' on 'host02' succeeded
CRS-2673: Attempting to stop 'ora.cluster_interconnect.haip' on 'host02'
CRS-2677: Stop of 'ora.ctssd' on 'host02' succeeded
CRS-2677: Stop of 'ora.cluster_interconnect.haip' on 'host02' succeeded
CRS-2673: Attempting to stop 'ora.cssd' on 'host02'
CRS-2677: Stop of 'ora.cssd' on 'host02' succeeded
CRS-2673: Attempting to stop 'ora.gipcd' on 'host02'
CRS-2677: Stop of 'ora.gipcd' on 'host02' succeeded
CRS-2673: Attempting to stop 'ora.gpnpd' on 'host02'
CRS-2677: Stop of 'ora.gpnpd' on 'host02' succeeded
CRS-2793: Shutdown of Oracle High Availability Services-managed resources on 'host02' has completed
CRS-4133: Oracle High Availability Services has been stopped.
Successfully deconfigured Oracle clusterware stack on this node

4. 修改主机名称
[root@host01 ~]# hostname rac01.exampl.com
[root@host02 ~]# hostname rac02.exampl.com
--修改 /etc/sysconfig/network 文件
[root@host01 ~]# vim /etc/sysconfig/network

--修改 hosts文件

   vi /etc/hosts
：s/host01/rac01/g

：s/host02/rac02/g

5. 修改11g grid的参数文件(Node1,Node2)
# vim $GRID_HOME/crs/install/crsconfig_params
：%s/host01/rac01/g
：%s/host02/rac02/g

6. 重建grid用户互信
   因为主机名修改了，两节点间grid用户信任关系需要重建
   [root@host01 ~]# /u01/app/11.2.0/grid/deinstall/sshUserSetup.sh -user oracle -hosts rac01 rac02 -noPromptPassphrase

   建立对等后，测试一下 ssh rac01 ,ssh rac02,不输入密码

7. 在各个节点依次运行/u01/app/11.2.0/grid/root.sh脚本
   节点1 rac01 运行root.sh
   最后在另外一个节点rac02 运行root.sh

8.asmca命令加载ASM磁盘组

9.grid用户netca注册监听
   netca -silent -responsefile /u01/app/11.2.0/grid/assistants/netca/netca.rsp
   这个本地监听是没有的，需要手工建立

   当然，还有数据库之类的，你可以手工加上去。

10.最后做完，结果如下：

   [oracle@rac01 ~]$ crsctl stat res -t
  --------------------------------------------------------------------------------
  NAME          TARGET  STATE       SERVER                STATE_DETAILS
  --------------------------------------------------------------------------------
  Local Resources
  --------------------------------------------------------------------------------
  ora.ACFS.dg
      ONLINE  ONLINE    rac01
      ONLINE  ONLINE    rac02
  ora.DATA.dg
      ONLINE  ONLINE    rac01
      ONLINE  ONLINE    rac02
  ora.FRA.dg
      ONLINE  ONLINE    rac01
      ONLINE  ONLINE    rac02
  ora.LISTENER.lsnr
      ONLINE  ONLINE    rac01
      ONLINE  ONLINE    rac02
  ora.asm
      ONLINE  ONLINE    rac01                   Started
      ONLINE  ONLINE    rac02                   Started
  ora.gsd
      OFFLINE OFFLINE    rac01
      OFFLINE OFFLINE    rac02
  ora.net1.network
      ONLINE  ONLINE    rac01
      ONLINE  ONLINE    rac02
  ora.ons
      ONLINE  ONLINE    rac01
      ONLINE  ONLINE    rac02
  ora.registry.acfs
      ONLINE  ONLINE    rac01
      ONLINE  ONLINE    rac02
  --------------------------------------------------------------------------------
  Cluster Resources
  --------------------------------------------------------------------------------
  ora.LISTENER_SCAN1.lsnr
   1       ONLINE  ONLINE    rac01
  ora.cvu
   1       ONLINE  ONLINE    rac01
  ora.oc4j
   1       ONLINE  ONLINE    rac01
  ora.rac01.vip
   1       ONLINE  ONLINE    rac01
  ora.rac02.vip
   1       ONLINE  ONLINE    rac02
  ora.scan1.vip
   1       ONLINE  ONLINE    rac01

作者: 郑全 时间: 2018-8-24 17:52
os:rhel 6.3

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