关 键 词:
RMAN-03022: compiling command: allocate
RMAN-03023: executing command: allocate
RMAN-08030: allocated channel: c1
RMAN-08500: channel c1: sid=13 devtype=DISK
RMAN-03022: compiling command: restore
RMAN-03022: compiling command: IRESTORE
RMAN-03023: executing command: IRESTORE
RMAN-08016: channel c1: starting datafile backupset restore
RMAN-08502: set_count=5 set_stamp=494177612 creation_time=16-MAY-03
RMAN-08089: channel c1: specifying datafile(s) to restore from backup set
RMAN-08523: restoring datafile 00003 to D:oracleORADATATESTUSER01.DBF
RMAN-08023: channel c1: restored backup piece 1
RMAN-08511: piece handle=D:BACKUPTSUSER_05EN93AC_5_1 tag=TSUSER params=NULL
RMAN-08024: channel c1: restore complete
RMAN-03023: executing command: partial resync
RMAN-08003: starting partial resync of recovery catalog
RMAN-08005: partial resync complete [Page]
RMAN-03022: compiling command: recover
RMAN-03022: compiling command: recover(1)
RMAN-03022: compiling command: recover(2)
RMAN-03022: compiling command: recover(3)
RMAN-03023: executing command: recover(3)
RMAN-08054: starting media recovery
RMAN-03022: compiling command: recover(4)
RMAN-06050: archivelog thread 1 sequence 332 is already on disk as file D:ORACLEORADATATESTARCHIVETESTT001S00332.ARC
RMAN-06050: archivelog thread 1 sequence 333 is already on disk as file D:ORACLEORADATATESTARCHIVETESTT001S00333.ARC
RMAN-06050: archivelog thread 1 sequence 334 is already on disk as file D:ORACLEORADATATESTARCHIVETESTT001S00334.ARC
RMAN-03023: executing command: recover(4)
RMAN-08515: archivelog filename=D:ORACLEORADATATESTARCHIVETESTT001S00332.ARC thread=1 sequence=332
RMAN-08055: media recovery complete
RMAN-03022: compiling command: sql
RMAN-06162: sql statement: alter database datafile 3 online
RMAN-03023: executing command: sql
RMAN-03022: compiling command: release
RMAN-03023: executing command: release
RMAN-08031: released channel: c1
RMAN>
8、检查数据是否完整
SQL> alter database open;
Database altered.
SQL> select * from test;
A
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1
2
说明：
1、RMAN也可以实现单个表空间或数据文件的恢复，恢复过程可以在mount下或open方式下，如果在open方式下恢复，可以减少down机时间
2、如果损坏的是一个数据文件，建议offline并在open方式下恢复
3、这里可以看到，RMAN进行数据文件与表空间恢复的时候，代码都比较简单，而且能保证备份与恢复的可靠性，所以建议采用RMAN的备份与恢复
4.3丢失多个数据文件，实现整个数据库的恢复
4.3.1 OS备份方案
OS备份归档模式下损坏（丢失）多个数据文件，进行整个数据库的恢复
1、连接数据库，创建测试表并插入记录
SQL*Plus: Release 8.1.6.0.0 - Production on Tue May 6 13:46:32 2003 [Page]
(c) Copyright 1999 Oracle Corporation. All rights reserved.
SQL> connect internal/password as sysdba;
Connected.
SQL> create table test(a int);
Table created
SQL> insert into test values(1);
1 row inserted
SQL> commit;
Commit complete
2、备份数据库，备份除临时数据文件后的所数据文件
SQL> @hotbak.sql 或在DOS下 svrmgrl @hotbak.sql
3、继续在测试表中插入记录
SQL> insert into test values(2);
1 row inserted
SQL> commit;
Commit complete
SQL> select * from test;
A
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1
2
SQL> alter system switch logfile;
System altered.
SQL> alter system switch logfile;