10g或11gr1RAC剔除节点


10g和11gr1从集群中删除不能启动的节点

  3节点rac lc2n1、lc2n2、lc2n3（lc2n3 宕机）

 

  查看集群状态

  crs_stat -t -v

  1.查看网络public和private，删除lc2n3

  $CRS_HOME/bin/oifcfg getif

  $ $CRS_HOME/bin/oifcfg delif -node lc2n3

  2.移除ons通知服务

  找到使用的远程端口

   cat $CRS_HOME/opmn/conf/ons.config

  localport=6113

  remoteport=6200

  loglevel=3

  useocr=on

  显示远程端口为6200

  移除

  $CRS_HOME/bin/racgons remove_config lc2n3:6200

 

  3.移走其他资源（实例、asm、listener、nodeapps）
oracle@lc2n1 ~]$ crsstat |grep OFFLINE

ora.LC2DB1.LC2DB13.inst                  ONLINE     OFFLINE             

ora.LC2DB1.LC2DB1_SRV1.LC2DB13.srv       ONLINE     OFFLINE             

ora.lc2n3.ASM3.asm                       ONLINE     OFFLINE             

ora.lc2n3.LISTENER_LC2N3.lsnr            ONLINE     OFFLINE             

ora.lc2n3.gsd                            ONLINE     OFFLINE             

ora.lc2n3.ons                            ONLINE     OFFLINE  

在移走之前先对ocr做备份

[root@lc2n1 ~]# cd $CRS_HOME/cdata/lc2

[root@lc2n1 lc2]# $CRS_HOME/bin/ocrconfig -export ocr_before_node_removal.exp

[root@lc2n1 lc2]# ls -l ocr_before_node_removal.exp

-rw-r--r-- 1 root root 151946 Nov 15 15:24 ocr_before_node_removal.exp

使用srvctl命令删除node3的实例。

[oracle@lc2n1 ~]$ . oraenv

ORACLE_SID = [oracle] ? LC2DB1

[oracle@lc2n1 ~]$ $ORACLE_HOME/bin/srvctl remove instance -d LC2DB1 -i LC2DB13

Remove instance LC2DB13 from the database LC2DB1? (y/
) y

移走asm资源

[oracle@lc2n1 ~]$ . oraenv

ORACLE_SID = [oracle] ? +ASM1

[oracle@lc2n1 ~]$ $ORACLE_HOME/bin/srvctl remove asm -n lc2n3

移走listener

10.2

[oracle@lc2n1 lc2]$ $CRS_HOME/bin/crs_unregister ora.lc2n3.LISTENER_LC2N3.lsnr

11.1

[oracle@lc2n1 ~]$ . oraenv

ORACLE_SID = [oracle] ? +ASM1

[oracle@lc2n1 lc2]$ $ORACLE_HOME/bin/srvctl remove listener -n lc2n3

as root user

[root@lc2n1 oracle]# $CRS_HOME/bin/srvctl stop nodeapps -n lc2n3

[root@lc2n1 oracle]# crsstat |grep OFFLINE

ora.lc2n3.LISTENER_LC2N3.lsnr            OFFLINE    OFFLINE             

ora.lc2n3.gsd                            OFFLINE    OFFLINE             

ora.lc2n3.ons                            OFFLINE    OFFLINE             

ora.lc2n3.vip                            OFFLINE    OFFLINE

[root@lc2n1 oracle]#  $CRS_HOME/bin/srvctl remove nodeapps -n lc2n3

Please confirm that you intend to remove the node-level applications on node lc2n3 (y/
) y

$crs_stat -t

此时检查资源已经没有节点3的了 

4 运行rootdeletenode.sh

[oracle@lc2n1 ~]$ $CRS_HOME//bin/olsnodes -n

lc2n1   1

lc2n2   2

lc2n3   3

[root@lc2n1 ~]# cd $CRS_HOME/install

[root@lc2n1 install]# ./rootdeletenode.sh lc2n3,3

CRS-0210: Could not find resource 'ora.lc2n3.ons'.

CRS-0210: Could not find resource 'ora.lc2n3.vip'.

CRS-0210: Could not find resource 'ora.lc2n3.gsd'.

CRS-0210: Could not find resource ora.lc2n3.vip.

CRS nodeapps are deleted successfully

clscfg: EXISTING configuration version 3 detected.

clscfg: version 3 is 10G Release 2.

Successfully deleted 14 values from OCR.

Key SYSTEM.css.interfaces.nodelc2n3 marked for deletion is not there. Ignoring.

Successfully deleted 5 keys from OCR.

Node deletion operation successful.

'lc2n3,3' deleted successfully

[root@lc2n1 install]# $CRS_HOME/bin/olsnodes -n

lc2n1   1

lc2n2   2

5 更新目录

[oracle@lc2n1 install]$ $CRS_HOME/oui/bin/runInstaller -updateNodeList ORACLE_HOME=/u01/app/oracle/product/10.2.0/crs "CLUSTER_NODES={lc2n1,lc2n2}" CRS=TRUE 

Starting Oracle Universal Installer...

No pre-requisite checks found in oraparam.ini, no system pre-requisite checks will be executed.

The inventory pointer is located at /etc/oraInst.loc

The inventory is located at /u01/app/oracle/oraInventory

'UpdateNodeList' was successful.

[oracle@lc2n1 install]$ $CRS_HOME/oui/bin/runInstaller -updateNodeList ORACLE_HOME=/u01/app/oracle/product/10.2.0/asm "CLUSTER_NODES={lc2n1,lc2n2}"

Starting Oracle Universal Installer...

No pre-requisite checks found in oraparam.ini, no system pre-requisite checks will be executed.

The inventory pointer is located at /etc/oraInst.loc

The inventory is located at /u01/app/oracle/oraInventory

'UpdateNodeList' was successful.

[oracle@lc2n1 install]$ $CRS_HOME/oui/bin/runInstaller -updateNodeList ORACLE_HOME=/u01/app/oracle/product/10.2.0/db_1 "CLUSTER_NODES={lc2n1,lc2n2}"

Starting Oracle Universal Installer...

No pre-requisite checks found in oraparam.ini, no system pre-requisite checks will be executed.

The inventory pointer is located at /etc/oraInst.loc

The inventory is located at /u01/app/oracle/oraInventory

'UpdateNodeList' was successful.