RMAN完全恢复丢失的数据文件

前提条件：

         丢失前做过RMAN备份，全库的

         控制文件、归档、联机日志文件完好无损

SYS@PROD>conn amy/amy Connected. AMY@PROD>create table t_amy02(b int);   Table created.     AMY@PROD>conn / as sysdba Connected. SYS@PROD>conn amy/amy Connected.   AMY@PROD>insert into t_amy02 values(11);   1 row created.   AMY@PROD>commit;   Commit complete.   AMY@PROD>select * from t_amy02;            B ----------         11   -- 此时做rman的全库备份 -- 下面再继续插入数据   AMY@PROD>insert into t_amy02 values(12);   1 row created.   AMY@PROD>commit;   Commit complete.   AMY@PROD>select * from t_amy02;            B ----------         11         12   AMY@PROD>conn / as sysdba Connected. SYS@PROD>alter system switch logfile;   System altered.   SYS@PROD>conn amy/amy Connected. AMY@PROD>insert into t_amy02 values(13);   1 row created.   AMY@PROD>commit;   Commit complete.   AMY@PROD>select * from t_amy02;            B ----------         11         12         13   -- 以上三条记录，11在rman备份里，12在归档里，13在联机日志里 -- 接着删除用户AMY的默认表空间TBS_AMY的数据文件'/u01/app/oracle/oradata/PROD/disk1/tbs_amy01.dbf'   AMY@PROD>create table t_amy03(c int); create table t_amy03(c int) * ERROR at line 1: ORA-01116: error in opening database file 10 ORA-01110: data file 10: '/u01/app/oracle/oradata/PROD/disk1/tbs_amy01.dbf' ORA-27041: unable to open file Linux Error: 2: No such file or directory Additional information: 3   --发现数据文件丢失后，需要做RMAN恢复 --如果不关机直接做restore会失败，报错ORA-19573，需要shutdown immediate然后再做RMAN restore and recover RMAN> shutdown immediate   database closed database dismounted Oracle instance shut down   RMAN> startup mount   connected to target database (not started) Oracle instance started database mounted   Total System Global Area     314572800 bytes   Fixed Size                     1219184 bytes Variable Size                 79693200 bytes Database Buffers             230686720 bytes Redo Buffers                   2973696 bytes   RMAN> restore database;   Starting restore at 23-JAN-14 allocated channel: ORA_DISK_1 channel ORA_DISK_1: sid=287 devtype=DISK allocated channel: ORA_DISK_2 channel ORA_DISK_2: sid=285 devtype=DISK   channel ORA_DISK_1: starting datafile backupset restore channel ORA_DISK_1: specifying datafile(s) to restore from backup set restoring datafile 00002 to /u01/app/oracle/oradata/PROD/disk1/undotbs01.dbf restoring datafile 00004 to /u01/app/oracle/oradata/PROD/disk1/example1.dbf restoring datafile 00007 to /u01/app/oracle/oradata/PROD/disk1/users1.dbf restoring datafile 00008 to /u01/app/oracle/oradata/PROD/disk1/oltp1.dbf restoring datafile 00009 to /u01/app/oracle/oradata/PROD/disk1/tbs_tommie01.dbf channel ORA_DISK_1: reading from backup piece /home/oracle/backup/PROD_0jouptng_1_1 channel ORA_DISK_2: starting datafile backupset restore channel ORA_DISK_2: specifying datafile(s) to restore from backup set restoring datafile 00001 to /u01/app/oracle/oradata/PROD/disk1/system001.dbf restoring datafile 00003 to /u01/app/oracle/oradata/PROD/disk1/sysaux01.dbf restoring datafile 00005 to /u01/app/oracle/oradata/PROD/disk1/indx1.dbf restoring datafile 00006 to /u01/app/oracle/oradata/PROD/disk1/tools1.dbf restoring datafile 00010 to /u01/app/oracle/oradata/PROD/disk1/tbs_amy01.dbf channel ORA_DISK_2: reading from backup piece /home/oracle/backup/PROD_0iouptng_1_1 channel ORA_DISK_1: restored backup piece 1 piece handle=/home/oracle/backup/PROD_0jouptng_1_1 tag=TAG20140123T142135 channel ORA_DISK_1: restore complete, elapsed time: 00:00:56 channel ORA_DISK_2: restored backup piece 1 piece handle=/home/oracle/backup/PROD_0iouptng_1_1 tag=TAG20140123T142135 channel ORA_DISK_2: restore complete, elapsed time: 00:01:04 Finished restore at 23-JAN-14   RMAN> recover database;   Starting recover at 23-JAN-14 using channel ORA_DISK_1 using channel ORA_DISK_2   starting media recovery media recovery complete, elapsed time: 00:00:03   Finished recover at 23-JAN-14   RMAN> alter database open;   database opened   AMY@PROD>conn / as sysdba Connected. SYS@PROD>conn amy/amy ERROR: ORA-03135: connection lost contact     ERROR: ORA-24315: illegal attribute type     Warning: You are no longer connected to ORACLE. @>conn / as sysdba ERROR: ORA-24313: user already authenticated     @>exit [oracle@odd-oelr4u8 ~]$ sqlplus / as sysdba   SQL*Plus: Release 10.2.0.1.0 - Production on Thu Jan 23 14:41:14 2014   Copyright (c) 1982, 2005, Oracle.  All rights reserved.     Connected to: Oracle Database 10g Enterprise Edition Release 10.2.0.1.0 - Production With the Partitioning, Oracle Label Security, OLAP and Data Mining options   SYS@PROD>conn amy/amy Connected. AMY@PROD>select * from t_amy02; select * from t_amy02               * ERROR at line 1: ORA-00376: file 10 cannot be read at this time ORA-01110: data file 10: '/u01/app/oracle/oradata/PROD/disk1/tbs_amy01.dbf'     SYS@PROD>alter tablespace tbs_amy begin backup; alter tablespace tbs_amy begin backup * ERROR at line 1: ORA-01128: cannot start online backup - file 10 is offline ORA-01110: data file 10: '/u01/app/oracle/oradata/PROD/disk1/tbs_amy01.dbf'     SYS@PROD>alter database datafile 10 online;   Database altered.   SYS@PROD>alter tablespace tbs_amy begin backup;   Tablespace altered.   SYS@PROD>alter tablespace tbs_amy end backup;   Tablespace altered.   SYS@PROD>conn amy/amy Connected. AMY@PROD>select * from t_amy02;            B ----------         11         12         13         -- 至此，完全恢复完成

 

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