Home Database Mysql Tutorial 基于Linux平台的Oracle RAC 10g集群教程:删除节点所需要的步骤

基于Linux平台的Oracle RAC 10g集群教程:删除节点所需要的步骤

Jun 07, 2016 pm 04:53 PM

在本文中,我将讨论从现有Oracle RAC 10g第二版集群中删除节点所需要的步骤。 出于演示目的,我们这里的环境是一个二节点的

在本文中,我将讨论从现有Oracle RAC 10g第二版集群中删除节点所需要的步骤。

    出于演示目的,我们这里的环境是一个二节点的 RedHat Linux 集群。

库名

节点编号

数据库版本

实例编号

操作系统内核版本

文件系统

集群管理器

RACDB

二个节点 -- Rac10g01和Rac10g03

10.2.0.1

四个实例 -- RACDB1、RACDB2

Red Hat Enterprise Linux AS 4
2.6.9-42.ELsmp

OCFS2 ASM

Oracle 集群件

    该过程将通过以下3个步骤实现

    1. 删除数据库实例
    2. 删除ASM实例
    3. 删除节点

    第一步 从RAC中删除数据库实例

    该步骤将完成如下:

    撤销选择的实例在关联的Oracle Net Services监听中的注册
    从实例配置节点中删除选择的实例
    删除Oracle网络配置
    从实例配置节点中删除OFA目录结构

    可以使用如下两种方式从现有RAC中删除数据库实例:

    1. 使用EM控制台

    登录EM控制台,选择"管理"选项
    选择更改数据库节中的删除实例
    输入集群身份证明(若使用ASM,需输入主机和ASM的身份证明),选择要删除实例的节点,提交该任务。
    任务的执行情况信息都在摘要页面中体现。

    2. 使用DBCA命令

    在保留节点节点上执行。

    交互模式(Interactive Mode)

    实例管理->实例删除->输入具备SYSDBA权限的用户->选择要删除的实例

    非交互模式(Silent Mode)(保留节点)

    dbca -silent -deleteInstance [-nodeList node] -gdbName gdbname -instanceName instname -sysDBAUserName sysdba -sysDBAPassword password

    第二步 从节点删除ASM实例(如果使用ASM)

    删除节点
    1. 停止使用被删ASM实例的所有数据库
    2. 删除ASM实例srvctl stop asm -n node_name srvctl remove asm -n node_name 
    3. 删除ASM Oracle目录

linux

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