RAC

Oracle 12c Release 2 (12.2.0.1.0) Grid Infrastructure Upgrade

I recently performed an upgrade of an Oracle 12c Release 1 (12.1.0.2) Grid Infrastructure environment hosted on a RAC Virtual Box environment on my laptop to the latest release 12c Release 2 12.2.0.1.0 version. Here are some points to be noted related to the upgrade process: The Grid Infrastructure 12c Release 2 (12.2) software is […]

Oracle 12c Release 2 (12.2.0.1.0) Grid Infrastructure Upgrade

I recently performed an upgrade of an Oracle 12c Release 1 (12.1.0.2) Grid Infrastructure environment hosted on a RAC Virtual Box environment on my laptop to the latest release 12c Release 2 12.2.0.1.0 version. Here are some points to be noted related to the upgrade process: The Grid Infrastructure 12c Release 2 (12.2) software is […]

RAC转成单实例

客户有个需求,需要将在一个包含多个rac、多个single instance的大cluster中的某个rac 节点,改成single instance。数据文件还在asm上,原来的数据文件还要继续时候用。 我们可以如下操作: High Level Step:1.备份spfile2.停需要转换的rac database3.删除在cluster中注册的这个rac database对应的service信息,对应的instance信息,和对应的database信息。4.修改spfile中,删除关于clu […]

节点OS重装后加回集群的步骤(10g RAC)

前面写过11gR2 RAC中节点OS重装后加回集群的步骤,但目前仍有客户在使用10g RAC,而10g RAC还不支持crsctl delete node这样的命令来一键删除重做节点的OCRthread等信息,操作起来比较繁琐。

My Oracle SupportOTN上面与此有关的文档:

Removing a Node from a 10gR1 RAC Cluster (Doc ID 269320.1)

Adding New Nodes to Your Oracle RAC 10g Cluster on Linux

http://www.oracle.com/technetwork/articles/vallath-nodes-095339.html

Doc ID 269320.1的操作是在重装OS之前把节点从集群删除的步骤,适用于服务器资源的重新调配。而实际工作中大多数情况下则是节点OS损坏重装或机器更换需要加回集群的场景,客户往往难以分清哪些步骤该做哪些步骤该跳过。故在此将这些步骤测试并记录下来供参考��

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