Oracle RMAN完全恢复案例（五）

案例5：
--新建表空间没有备份，datafile 被破坏
1）测试环境
07:52:16 SQL> create tablespace lx
07:52:24 2 datafile '/u01/app/oracle/oradata/prod/lx01.dbf' size 10m;
Tablespace created.
07:52:38 SQL> conn scott/tiger
Connected.
07:52:40 SQL>
07:52:40 SQL> create table lx01 (id int) tablespace lx;
Table created.
07:52:49 SQL> insert into lx01 values (1);
1 row created.
07:52:55 SQL> insert into lx01 values (2);
1 row created.
07:52:57 SQL> insert into lx01 values (3);
1 row created.
07:52:59 SQL> commit;
Commit complete.
07:53:00 SQL> select * from lx01;
ID
----------
1
2
3
07:53:03 SQL>
07:53:03 SQL> conn /as sysdba
Connected.
07:53:16 SQL>
07:53:16 SQL> shutdown abort
ORACLE instance shut down.
07:53:19 SQL>
[oracle@work ~]$ rm /u01/app/oracle/oradata/prod/lx01.dbf

2）启动database
07:53:19 SQL> startup
ORACLE instance started.
Total System Global Area 314572800 bytes
Fixed Size 1219184 bytes
Variable Size 79693200 bytes
Database Buffers 230686720 bytes
Redo Buffers 2973696 bytes
Database mounted.
ORA-01157: cannot identify/lock data file 10 - see DBWR trace file
ORA-01110: data file 10: '/u01/app/oracle/oradata/prod/lx01.dbf'
07:54:15 SQL> select file#,error from v$recover_file;
FILE# ERROR
---------- -----------------------------------------------------------------
10 FILE NOT FOUND
07:54:25 SQL>

3）利用rman 恢复
RMAN> run {
2> sql 'alter database datafile 10 offline';
3> alter database open;
4> restore datafile 10;
5> recover datafile 10;
6> sql'alter database datafile 10 online';
7> }
using target database control file instead of recovery catalog
sql statement: alter database datafile 10 offline
database opened
Starting restore at 18-AUG-11
allocated channel: ORA_DISK_1
channel ORA_DISK_1: sid=154 devtype=DISK
creating datafile fno=10 name=/u01/app/oracle/oradata/prod/lx01.dbf ；自动建立新的lx01.dbf 文件
restore not done; all files readonly, offline, or already restored
Finished restore at 18-AUG-11
Starting recover at 18-AUG-11
using channel ORA_DISK_1
starting media recovery
media recovery complete, elapsed time: 00:00:01
Finished recover at 18-AUG-11
sql statement: alter database datafile 10 online
RMAN>

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