rman备份到win共享目录

发表于 2019 年 9 月 26 日 由 惜分飞

在win环境中数据库备份到异地,相对来说没有linux的nfs方便(可能nfs使用多了比较熟悉),以前写过一篇文章（windows rman自动备份并传输到远程服务器处理方法）,通过本地备份,然后拷贝到远程共享目录实现,相对来说该方案比较繁琐,这次尝试直接备份到共享目录
1. 服务配置
20190926221926

oracle数据库服务和监听服务配置使用此账户的方式登录(而不是默认的本地系统账号)

2.在目标服务器中配置共享
20190926222029
主要两台win服务器登录用户名和密码需要一致,最好也是数据库安装用户

3.数据库备份脚本
20190926222130
备份脚本路径使用\\方式而不能使用别名盘符

4.数据库备份计划任务
20190926222951
运行任务时请使用下列用户选择ORA_DBA

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通过sql获取asm别名实际文件名

发表于 2019 年 9 月 6 日 由 惜分飞

asm的别名机制带来了一些便利的同时有些时候也引入了一些麻烦,比如某些工具无法很好的识别别名,闲着写了sql直接获取别名和实际数据文件对应关系
直接查询数据文件
1-3

通过asmcmd中的ls命令查看

ASMCMD> ls -l +MGMT/ora18c/test01.dbf
Type      Redund  Striped  Time             Sys  Name
DATAFILE  UNPROT  COARSE   SEP 06 00:00:00  N    test01.dbf => +MGMT/ORA18C/DATAFILE/TEST16K.274.1016183943

但是如果太多,这样一个个替换效率太低,通过sql语句实现

获取实际数据文件
1-2

通过sql语句快速实现把数据文件路径中的别名转换为实际存储路径(omf方式存储)

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oracle active dataguard修改密码备库延迟生效

发表于 2019 年 9 月 3 日 由 惜分飞

在oracle dataguard环境中,当主库修改密码之后,备库不会立即生效,需要flush shared pool之后才会生效
主库创建用户并尝试登录

[oracle@primary ~]$ sqlplus / as sysdba

SQL*Plus: Release 11.2.0.4.0 Production on Tue Sep 3 17:24:12 2019

Copyright (c) 1982, 2013, Oracle.  All rights reserved.


Connected to:
Oracle Database 11g Enterprise Edition Release 11.2.0.4.0 - 64bit Production
With the Partitioning, Real Application Clusters, Automatic Storage Management, OLAP,
Data Mining and Real Application Testing options

SQL> select open_mode,database_role from v$database;

OPEN_MODE            DATABASE_ROLE
-------------------- ----------------
READ WRITE           PRIMARY

SQL> create user xff identified by oracle;

User created.

SQL> grant dba to xff;

Grant succeeded.
SQL> conn xff/oracle
Connected.

备库登录信息

[oracle@standby ~]$ sqlplus / as sysdba

SQL*Plus: Release 11.2.0.4.0 Production on Tue Sep 3 17:17:47 2019

Copyright (c) 1982, 2013, Oracle.  All rights reserved.


Connected to:
Oracle Database 11g Enterprise Edition Release 11.2.0.4.0 - 64bit Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options

SQL> select database_role,open_mode from v$database;

DATABASE_ROLE    OPEN_MODE
---------------- --------------------
PHYSICAL STANDBY READ ONLY WITH APPLY

[oracle@standby ~]$ ss

SQL*Plus: Release 11.2.0.4.0 Production on Tue Sep 3 17:25:58 2019

Copyright (c) 1982, 2013, Oracle.  All rights reserved.


Connected to:
Oracle Database 11g Enterprise Edition Release 11.2.0.4.0 - 64bit Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options

SQL> conn xff/oracle
Connected.

主库修改密码

[oracle@primary ~]$ sqlplus / as sysdba

SQL*Plus: Release 11.2.0.4.0 Production on Tue Sep 3 17:17:47 2019

Copyright (c) 1982, 2013, Oracle.  All rights reserved.


Connected to:
Oracle Database 11g Enterprise Edition Release 11.2.0.4.0 - 64bit Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options

SQL>  alter user xff identified by xff;

User altered.

SQL> conn xff/xff
Connected.

备库尝试登录

SQL> conn xff/xff;
ERROR:
ORA-01017: invalid username/password; logon denied


Warning: You are no longer connected to ORACLE.
SQL> conn xff/oracle
Connected.

备库原密码可以登录修改之后的密码无法登录

备库刷新shared pool,新密码登录成功

SQL> conn / as sysdba
Connected.
SQL> alter system flush shared_pool;

System altered.

SQL> conn xff/oracle
ERROR:
ORA-01017: invalid username/password; logon denied


Warning: You are no longer connected to ORACLE.
SQL> conn xff/xff
Connected.
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