Oracle备份时发生断电的对策

程序员文章站 2022-06-05 21:55:09

...

SQLgt; alter database begin backup; --开始备份数据库 Database altered. SQLgt; host cp /u01/Oracle/oradata/ORCL/*

Oracle备份时发生断电的对策

[日期：2012-12-20] 来源：Linux社区作者：kaixin1998 [字体：]

SQL> alter database begin backup; --开始备份数据库

Database altered.

SQL> host cp /u01/Oracle/oradata/ORCL/*.dbf /u01/oracle/dump1/ --还没执行完毕就断电关机了，，abort

在重启数据库的时候，出现的问题
[root@station88 ~]# su - oracle
[oracle@station88 ~]$ sqlplus /nolog

SQL*Plus: Release 10.2.0.4.0 - Production on Sat Dec 15 07:51:29 2012

Copyright (c) 1982, 2007, Oracle. All Rights Reserved.

SQL> conn /as sysdba
Connected to an idle instance.
SQL> startup
ORACLE instance started.

Total System Global Area 373293056 bytes
Fixed Size 1267572 bytes
Variable Size 104859788 bytes
Database Buffers 264241152 bytes
Redo Buffers 2924544 bytes
Database mounted.
ORA-01113: file 1 needs media recovery
ORA-01110: data file 1: '/u01/oracle/oradata/ORCL/system01.dbf'

解决方法是：恢复数据文件
SQL> recover datafile '/u01/oracle/oradata/ORCL/system01.dbf' --恢复数据文件
Media recovery complete.
SQL> alter database open;
alter database open
*
ERROR at line 1:
ORA-01113: file 2 needs media recovery
ORA-01110: data file 2: '/u01/oracle/oradata/ORCL/undotbs01.dbf'

SQL> recover datafile '/u01/oracle/oradata/ORCL/undotbs01.dbf'
Media recovery complete.
SQL> alter database open;
alter database open
*
ERROR at line 1:
ORA-01113: file 3 needs media recovery
ORA-01110: data file 3: '/u01/oracle/oradata/ORCL/sysaux01.dbf'

SQL> recover datafile '/u01/oracle/oradata/ORCL/sysaux01.dbf'
Media recovery complete.
SQL> alter database open;
alter database open
*
ERROR at line 1:
ORA-01113: file 4 needs media recovery
ORA-01110: data file 4: '/u01/oracle/oradata/ORCL/users01.dbf'

SQL> recover datafile '/u01/oracle/oradata/ORCL/users01.dbf'
Media recovery complete.
SQL> alter database open;
alter database open
*
ERROR at line 1:
ORA-01113: file 5 needs media recovery
ORA-01110: data file 5: '/u01/oracle/oradata/ORCL/example01.dbf'

SQL> recover datafile '/u01/oracle/oradata/ORCL/example01.dbf'
Media recovery complete.
SQL> alter database open;
alter database open
*
ERROR at line 1:
ORA-01113: file 6 needs media recovery
ORA-01110: data file 6: '/u01/oracle/oradata/ORCL/plsql01.dbf'

SQL> recover datafile '/u01/oracle/oradata/ORCL/plsql01.dbf'
Media recovery complete.
SQL> recover datafile '/u01/oracle/oradata/ORCL/dmptest01.dbf'
Media recovery complete.
SQL> alter database open;

Database altered.

数据库open来就可以了

说明：本实验oracle的版本是10.2.0.4.0