Oracle 18c PSU
1、18C RAC安装完毕后进行补丁修复，也就是更新PSU；
按照README要求：
OPatch 工具版本要求： 12.2.0.1.16 及以上版本
当前版本：OPatch Version: 12.2.0.1.14
下载地址：
https://updates.oracle.com/download/6880880.html
选择版本： My Oracle Support patch 6880880 by selecting ARU link for the 18.0.0.0.0 release
备份之前的OPatch目录，把此压缩包解压到$ORACLE_HOME目录中；
$ unzip -d
$ /OPatch/opatch version
再次确认更新后的工具版本：OPatch Version: 12.2.0.1.17
2、下载Patch 29301682 - GI Release Update 18.6.0.0.190416
#使用grid用户解压到临时目录：
$ unzip p29301682_180000_Linux-x86-64.zip
#GI_HOME和DB_HOME均不共享，依次在两节点执行如下命令：
# /OPatch/opatchauto apply /29301682
补丁执行用户：root
[root@rac18c1 ~]# $ORACLE_HOME/OPatch/opatchauto apply /u01/soft/29301682/
OPatchauto session is initiated at Fri Apr 26 13:48:46 2019
System initialization log file is /u01/app/18.3.0/grid/cfgtoollogs/opatchautodb/systemconfig2019-04-26_01-48-51PM.log.
会话日志文件是/u01/app/18.3.0/grid/cfgtoollogs/opatchauto/opatchauto2019-04-26_01-49-56PM.log
此会话的 ID 为 DUAD
Executing OPatch prereq operations to verify patch applicability on home /u01/app/18.3.0/grid
Patch applicability verified successfully on home /u01/app/18.3.0/grid
Bringing down CRS service on home /u01/app/18.3.0/grid
CRS service brought down successfully on home /u01/app/18.3.0/grid
Start applying binary patch on home /u01/app/18.3.0/grid
Binary patch applied successfully on home /u01/app/18.3.0/grid
Starting CRS service on home /u01/app/18.3.0/grid
CRS service started successfully on home /u01/app/18.3.0/grid
OPatchAuto 成功。
--------------------------------Summary--------------------------------
Patching is completed successfully. Please find the summary as follows:
Host:rac18c1
CRS Home:/u01/app/18.3.0/grid
Version:18.0.0.0.0
Summary:
==Following patches were SUCCESSFULLY applied:
Patch: /u01/soft/29301682/28435192
Log: /u01/app/18.3.0/grid/cfgtoollogs/opatchauto/core/opatch/opatch2019-04-26_13-55-05下午_1.log
Patch: /u01/soft/29301682/28547619
Log: /u01/app/18.3.0/grid/cfgtoollogs/opatchauto/core/opatch/opatch2019-04-26_13-55-05下午_1.log
Patch: /u01/soft/29301682/29301631
Log: /u01/app/18.3.0/grid/cfgtoollogs/opatchauto/core/opatch/opatch2019-04-26_13-55-05下午_1.log
Patch: /u01/soft/29301682/29301643
Log: /u01/app/18.3.0/grid/cfgtoollogs/opatchauto/core/opatch/opatch2019-04-26_13-55-05下午_1.log
Patch: /u01/soft/29301682/29302264
Log: /u01/app/18.3.0/grid/cfgtoollogs/opatchauto/core/opatch/opatch2019-04-26_13-55-05下午_1.log
OPatchauto session completed at Fri Apr 26 14:07:53 2019
Time taken to complete the session 19 minutes, 7 seconds
#节点1执行完毕，在节点2执行：升级失败告终！！
MOS上有一篇文章提到这个问题
CRS-6706: Oracle Clusterware Release patch level (‘nnn’) does not match Software patch level (‘mmm’) (文档 ID 1639285.1)
节点2因为执行RU脚本失败，但与之前的版本又不一致，所有在重启CRS后，无法启动。
官网给的解决方案，执行如下命令：
For 12.1 version :
Execute"
For 12.2
Execute
"
"
For Oracle Grid Infrastructure for a standalone server
Log in as root
#
执行如上命令依然报错，因为我安装的18.3所以执行如下命令，成功
[root@rac18c2 crs]# /u01/app/18.3.0/grid/crs/install/rootcrs.sh -postpatch
#回退命令：
[root@rac18c2 ~]# $ORACLE_HOME/OPatch/opatchauto rollback /u01/soft/29301682/
#再次重新执行，成功
[root@rac18c2 ~]# $ORACLE_HOME/OPatch/opatchauto apply /u01/soft/29301682/
#此次18C 补丁升级完毕。
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转载于:http://blog.itpub.net/30327022/viewspace-2642624/