[Oracle] Data Guard CPU/PSU补丁安装详细教程

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非Data Guard的补丁安装教程可参考《[Oracle] CPU/PSU补丁安装详细教程》,Data Guard需要Primary和Standby同时打上补丁,所以步骤更复杂一些,其主要步骤如下:
1.在Primary停止日志传输服务;
2.关闭Standby数据库,在Standby的软件上打补丁(注意:不需要为Standby数据库打补丁),启动standby为mount状态,不启用managed recovery;
3.关闭Primary,在Primary的软件和数据库本身都打上补丁;
4.启动Primary数据库,重新开启日志传输服务;
5.在Standby启动Redo Apply,这样Primary上补丁脚本就会自动同步至Standby;
6.检查Primary和Standby是否都已安装补丁。
下面是一个具体例子:
1. 在Primary停止日志传输服务

复制代码 代码如下:

[email protected]>select database_role from v$database;
DATABASE_ROLE
----------------
PRIMARY
[email protected]>show parameter log_archive_dest_3
NAME                                 TYPE        VALUE
------------------------------------ ----------- ------------------------------
log_archive_dest_3                   string      SERVICE=sta ASYNC VALID_FOR=(O
                                                 NLINE_LOGFILES,PRIMARY_ROLE) D
                                                 B_UNIQUE_NAME=epaybk
log_archive_dest_30                  string
log_archive_dest_31                  string
[email protected]>alter system set log_archive_dest_state_3=defer scope=both;
System altered.


2.在Standby的Oracle软件打上补丁
2.1 关闭数据库实例,listener,ASM实例等
2.2 查看opatch的版本,如果不够,就去下载最新的版本
2.3 在Standby的Oracle软件上打补丁
2.4 启动Standby到mount状态,启动listener
(注意:Standby不需要对数据库本身打补丁)

3. 在Primary上打补丁
3.1 关闭数据库实例,listener,ASM实例等
3.2 查看opatch的版本,如果不够,就去下载最新的版本
3.3 在Primary的Oracle软件上打补丁
3.4 为Primary数据库本身打补丁

复制代码 代码如下:

cd $ORACLE_HOME/rdbms/admin
sqlplus /nolog
SQL> CONNECT / AS SYSDBA
SQL> STARTUP
SQL> @catbundle.sql psu apply
SQL> QUIT


4. 在Primary启动日志传输服务
4.1 启动Primary listener,数据库实例等
4.2 强制注册services到listener

复制代码 代码如下:

[email protected]>alter system register;
System altered.


4.3 重新启动日志传输服务

复制代码 代码如下:

[email protected]>alter system set log_archive_dest_state_3=enable scope=both;
System altered.


注意:启动日志传输,在alert里有可能出现如下错误:

复制代码 代码如下:

------------------------------------------------------------
Check that the primary and standby are using a password file
and remote_login_passwordfile is set to SHARED or EXCLUSIVE,
and that the SYS password is same in the password files.
      returning error ORA-16191
------------------------------------------------------------


根据错误信息的提示,应该是主库在做CPU补丁的时候把sys密码修改了,用主库的密码文件替换备库的密码文件即可解决该错误。
5. Standby启动Redo Apply
5.1 open Standby 数据库
5.2 启用Redo Apply

复制代码 代码如下:

[email protected]>alter database recover managed standby database disconnect from session;
Database altered.


5.3 验证Primary和Standby是否同步
在primary端查询当前最大的归档日志序号:

复制代码 代码如下:

[email protected]>select max(sequence#) from v$archived_log;
MAX(SEQUENCE#)
--------------
           159


在standby端查询已传过来的归档日志:

复制代码 代码如下:

[email protected]>select sequence#, applied from v$archived_log;


5.4 从alert.log可用看出同步了3个日志文件(即把在primary打的补丁同步到了standby)

复制代码 代码如下:

alter database recover managed standby database disconnect from session
Attempt to start background Managed Standby Recovery process (epay)
Wed Jul 10 06:03:48 2013
MRP0 started with pid=29, OS id=15030
MRP0: Background Managed Standby Recovery process started (epay)
 started logmerger process
Wed Jul 10 06:03:53 2013
Managed Standby Recovery not using Real Time Apply
Wed Jul 10 06:04:01 2013
Parallel Media Recovery started with 32 slaves
Waiting for all non-current ORLs to be archived...
All non-current ORLs have been archived.
Wed Jul 10 06:04:01 2013
Completed: alter database recover managed standby database disconnect from session
Media Recovery Log /data/oradata/epay/archivelog/1_157_814716635.dbf
Media Recovery Log /data/oradata/epay/archivelog/1_158_814716635.dbf
Media Recovery Log /data/oradata/epay/archivelog/1_159_814716635.dbf
Media Recovery Waiting for thread 1 sequence 160 (in transit)


6. 后期检查补丁是否安装成功
6.1 在primary, standby分别指向opatch lsinventory
6.2 在数据库里检查补丁是否安装成功

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