下面彻底删除节点3上的软件，首先需要设置节点3上的CLUSTER_NODES列表：

bash-3.00# xhost +
access control disabled, clients can connect from any host
bash-3.00# su - oracle
Sun Microsystems Inc.   SunOS 5.10      Generic January 2005
$ bash
bash-3.00$ cd /data/oracle/product/10.2/crs/oui/binbash-3.00$ ./runInstaller -updateNodelist ORACLE_HOME=/data/oracle/product/10.2/crs "CLUSTER_NODES={racnode3}" CRS=TRUE -local
正在启动 Oracle Universal Installer...

正在检查安装程序要求...

检查操作系统版本: 必须是5.8, 5.9 or 5.10。    实际为 5.10
                                      通过

检查临时空间: 必须大于 250 MB。   实际为 4323 MB    通过
检查交换空间: 必须大于 500 MB。   实际为 4399 MB    通过
检查监视器: 监视器配置至少必须显示 256 种颜色。    实际为 65536    通过

所有安装程序要求均已满足。

'UpdateNodeList' 成功。

bash-3.00$ cd /data/oracle/product/10.2/database/oui/bin
bash-3.00$ ./runInstaller -updateNodelist ORACLE_HOME=/data/oracle/product/10.2/database "CLUSTER_NODES={racnode3}" -local
正在启动 Oracle Universal Installer...

在 oraparam.ini 中未找到先决条件检查, 不执行系统先决条件检查。
The inventory pointer is located at /var/opt/oracle/oraInst.loc
The inventory is located at /data/oracle/oraInventory
'UpdateNodeList' 成功。

下面在节点3上执行runInstaller，分别删除数据库软件和CLUSTER软件。

随后登陆节点1更新节点信息：

bash-2.03$ cd /data/oracle/product/10.2/crs/oui/bin
bash-2.03$ ./runInstaller -updateNodeList -noClusterEnabled ORACLE_HOME=/data/oracle/product/10.2/crs CLUSTER_NODES=racnode1,racnode2 CRS=true "INVENTORY_LOCATION=/data/oracle/oraInventory" LOCAL_NODE=racnode1
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 /var/opt/oracle/oraInst.loc
The inventory is located at /data/oracle/oraInventory
'UpdateNodeList' was successful.
bash-2.03$ cd /data/oracle/product/10.2/database/oui/bin
bash-2.03$ ./runInstaller -updateNodeList -noClusterEnabled ORACLE_HOME=/data/oracle/product/10.2/database CLUSTER_NODES=racnode1,racnode2 CRS=false "INVENTORY_LOCATION=/data/oracle/oraInventory" LOCAL_NODE=racnode1
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 /var/opt/oracle/oraInst.loc
The inventory is located at /data/oracle/oraInventory
'UpdateNodeList' was successful.

登陆节点2执行类似的操作，唯一的区别是将LOCAL_NODE改为racnode2：

bash-2.03$ cd $ORACLE_HOME/../crs/oui/bin
bash-2.03$ ./runInstaller -updateNodeList -noClusterEnabled ORACLE_HOME=/data/oracle/product/10.2/crs CLUSTER_NODES=racnode1,racnode2 CRS=true "INVENTORY_LOCATION=/data/oracle/oraInventory" LOCAL_NODE=racnode2
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 /var/opt/oracle/oraInst.loc
The inventory is located at /data/oracle/oraInventory
'UpdateNodeList' was successful.
bash-2.03$ cd $ORACLE_HOME/oui/bin
bash-2.03$ ./runInstaller -updateNodeList -noClusterEnabled ORACLE_HOME=/data/oracle/product/10.2/database CLUSTER_NODES=racnode1,racnode2 CRS=false "INVENTORY_LOCATION=/data/oracle/oraInventory" LOCAL_NODE=racnode2
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 /var/opt/oracle/oraInst.loc
The inventory is located at /data/oracle/oraInventory
'UpdateNodeList' was successful.

至此，节点3的清除工作全部完成。