【RMAN】利用备份片还原数据库
【RMAN】利用备份片还原数据库(上)： http://blog.itpub.net/26736162/viewspace-1621581/
【RMAN】利用备份片还原数据库(中)：http://blog.itpub.net/26736162/viewspace-1621661/
在上2篇blog中介绍了备份片中含有控制文件的备份的情况下，如何从备份集中找回控制文件的备份并恢复数据库，本篇blog来介绍下在备份片中没有控制文件的备份的情况下如何恢复数据库。
1.1 备份集中无控制文件情况下的数据库恢复
如果采用本文中所描述的3种方式均判断没有控制文件的备份的时候，那么我们唯一能做的就是重建控制文件了，而resetlogs方式重建控制文件之前需要控制文件脚本中的所有数据文件到位才能重建控制文件。
[[email protected] 2015_05_02]# ll -h
total 1.2G
-rw-r----- 1 oracle oinstall 30M May 2 15:49 o1_mf_annnn_TAG20150502T154402_bn9022tb_.bkp
-rw-r----- 1 oracle oinstall 4.0K May 2 15:49 o1_mf_annnn_TAG20150502T154451_bn903mln_.bkp
-rw-r----- 1 oracle oinstall 1.1G May 2 15:49 o1_mf_nnndf_TAG20150502T154404_bn9025w1_.bkp
[[email protected] 2015_05_02]# pwd
/tmp/2015_05_02
[[email protected] dbs]$ cd $ORACLE_HOME/dbs
[[email protected] dbs]$ more inittmp.ora
db_name=tmp
[[email protected] dbs]$ ORACLE_SID=tmp
[[email protected] dbs]$ sqlplus / as sysdba
SQL*Plus: Release 11.2.0.1.0 Production on Sun May 3 14:45:45 2015
Copyright (c) 1982, 2009, Oracle. All rights reserved.
Connected to an idle instance.
SQL> startup nomount;
ORACLE instance started.
Total System Global Area 217157632 bytes
Fixed Size 2211928 bytes
Variable Size 159387560 bytes
Database Buffers 50331648 bytes
Redo Buffers 5226496 bytes
SQL> DECLARE
2 devtype varchar2(256);
3 done boolean;
4 BEGIN
5 devtype:=sys.dbms_backup_restore.deviceAllocate (type=>‘‘,ident=>‘t1‘);
6 sys.dbms_backup_restore.restoreSetDatafile;
7 sys.dbms_backup_restore.restoreDatafileTo(dfnumber=>01,toname=>‘/tmp/2015_05_02/datafile1.dbf‘);
8 sys.dbms_backup_restore.restoreBackupPiece(done=>done,handle=>‘/tmp/2015_05_02/o1_mf_nnndf_TAG20150502T154404_bn9025w1_.bkp‘, params=>null);
9 sys.dbms_backup_restore.deviceDeallocate;
10 END;
11 /
PL/SQL procedure successfully completed.
SQL> SQL> ! ls -lh /tmp/2015_05_02/
total 1.9G
-rw-r----- 1 oracle asmadmin 721M May 3 14:46 datafile1.dbf
-rw-r----- 1 oracle oinstall 30M May 2 15:49 o1_mf_annnn_TAG20150502T154402_bn9022tb_.bkp
-rw-r----- 1 oracle oinstall 4.0K May 2 15:49 o1_mf_annnn_TAG20150502T154451_bn903mln_.bkp
-rw-r----- 1 oracle oinstall 1.1G May 2 15:49 o1_mf_nnndf_TAG20150502T154404_bn9025w1_.bkp
SQL> CREATE CONTROLFILE REUSE DATABASE "tmp" NORESETLOGS ARCHIVELOG
2 MAXLOGFILES 16
3 MAXLOGMEMBERS 3
4 MAXDATAFILES 100
5 MAXINSTANCES 8
6 MAXLOGHISTORY 292
7 LOGFILE
8 GROUP 1 ‘/tmp/2015_05_02/redo01.log‘ SIZE 50M,
9 GROUP 2 ‘/tmp/2015_05_02/redo02.log‘ SIZE 50M
10 DATAFILE
11 ‘/tmp/2015_05_02/datafile1.dbf‘
12 CHARACTER SET ZHS16GBK
13 ;
CREATE CONTROLFILE REUSE DATABASE "tmp" NORESETLOGS ARCHIVELOG
*
ERROR at line 1:
ORA-01503: CREATE CONTROLFILE failed
ORA-01161: database name ORA11G in file header does not match given name of TMP
ORA-01110: data file 1: ‘/tmp/2015_05_02/datafile1.dbf‘
由此可以看出备份集中的db_name为ORA11G，其实这些都是没有必要的，哪个dba不晓得数据库名呢？好吧，我们将pfile文件中的db_name修改一下，采用RESETLOGS创建控制文件，注意必须是RESETLOGS，NORESETLOGS需要online log文件在位，如下：
[[email protected] dbs]$ more inittmp.ora
db_name=ORA11G
[[email protected] dbs]$ echo $ORACLE_SID
tmp
[[email protected] dbs]$ sqlplus / as sysdba
SQL*Plus: Release 11.2.0.1.0 Production on Sun May 3 14:56:44 2015
Copyright (c) 1982, 2009, Oracle. All rights reserved.
Connected to an idle instance.
SQL> startup nomount;
ORACLE instance started.
Total System Global Area 217157632 bytes
Fixed Size 2211928 bytes
Variable Size 159387560 bytes
Database Buffers 50331648 bytes
Redo Buffers 5226496 bytes
SQL> CREATE CONTROLFILE REUSE DATABASE "ORA11G" RESETLOGS DATAFILE ‘/tmp/2015_05_02/datafile1.dbf‘;
Control file created.
SQL>
SQL> show parameter control_files
NAME TYPE VALUE
------------------------------------ ----------- ------------------------------
control_files string /u01/app/oracle/product/11.2.0
/dbhome_1/dbs/cntrltmp.dbf
SQL>
SQL> set line 9999 pagesize 9999
SQL> col FILE_NAME format a50
SQL> select file#,name FILE_NAME,status from v$datafile;
FILE# FILE_NAME STATUS
---------- -------------------------------------------------- -------
1 /tmp/2015_05_02/datafile1.dbf SYSTEM
SQL>
catalog 所有的backuppiece
[[email protected] dbs]$ rman target /
Recovery Manager: Release 11.2.0.1.0 - Production on Sun May 3 15:40:32 2015
Copyright (c) 1982, 2009, Oracle and/or its affiliates. All rights reserved.
connected to target database: ORA11G (DBID=4270446895, not open)
RMAN> list backupset;
using target database control file instead of recovery catalog
specification does not match any backup in the repository
RMAN> catalog start with ‘/tmp/2015_05_02/‘;
searching for all files that match the pattern /tmp/2015_05_02/
List of Files Unknown to the Database
=====================================
File Name: /tmp/2015_05_02/o1_mf_annnn_TAG20150502T154451_bn903mln_.bkp
File Name: /tmp/2015_05_02/o1_mf_annnn_TAG20150502T154402_bn9022tb_.bkp
File Name: /tmp/2015_05_02/o1_mf_nnndf_TAG20150502T154404_bn9025w1_.bkp
Do you really want to catalog the above files (enter YES or NO)? yes
cataloging files...
cataloging done
List of Cataloged Files
=======================
File Name: /tmp/2015_05_02/o1_mf_annnn_TAG20150502T154451_bn903mln_.bkp
File Name: /tmp/2015_05_02/o1_mf_annnn_TAG20150502T154402_bn9022tb_.bkp
File Name: /tmp/2015_05_02/o1_mf_nnndf_TAG20150502T154404_bn9025w1_.bkp
RMAN>
RMAN> list backupset;
List of Backup Sets
===================
BS Key Size Device Type Elapsed Time Completion Time
------- ---------- ----------- ------------ -------------------
1 3.50K DISK 00:00:00 2015-05-02 15:44:51
BP Key: 1 Status: AVAILABLE Compressed: NO Tag: TAG20150502T154451
Piece Name: /tmp/2015_05_02/o1_mf_annnn_TAG20150502T154451_bn903mln_.bkp
List of Archived Logs in backup set 1
Thrd Seq Low SCN Low Time Next SCN Next Time
---- ------- ---------- ------------------- ---------- ---------
1 17 1166181 2015-05-02 15:44:02 1166209 2015-05-02 15:44:51
BS Key Size Device Type Elapsed Time Completion Time
------- ---------- ----------- ------------ -------------------
2 29.82M DISK 00:00:00 2015-05-02 15:44:02
BP Key: 2 Status: AVAILABLE Compressed: NO Tag: TAG20150502T154402
Piece Name: /tmp/2015_05_02/o1_mf_annnn_TAG20150502T154402_bn9022tb_.bkp
List of Archived Logs in backup set 2
Thrd Seq Low SCN Low Time Next SCN Next Time
---- ------- ---------- ------------------- ---------- ---------
1 16 1145812 2015-05-02 11:31:52 1166181 2015-05-02 15:44:02
BS Key Type LV Size Device Type Elapsed Time Completion Time
------- ---- -- ---------- ----------- ------------ -------------------
3 Full 1.07G DISK 00:00:00 2015-05-02 15:44:04
BP Key: 3 Status: AVAILABLE Compressed: NO Tag: TAG20150502T154404
Piece Name: /tmp/2015_05_02/o1_mf_nnndf_TAG20150502T154404_bn9025w1_.bkp
List of Datafiles in backup set 3
File LV Type Ckp SCN Ckp Time Name
---- -- ---- ---------- ------------------- ----
1 Full 1166189 2015-05-02 15:44:04 /tmp/2015_05_02/datafile1.dbf
2 Full 1166189 2015-05-02 15:44:04
3 Full 1166189 2015-05-02 15:44:04
4 Full 1166189 2015-05-02 15:44:04
5 Full 1166189 2015-05-02 15:44:04
6 Full 1166189 2015-05-02 15:44:04
RMAN>
RMAN> list backupset of spfile;
specification does not match any backup in the repository
RMAN> list backupset of controlfile;
specification does not match any backup in the repository
RMAN> list backupset of archivelog all;
List of Backup Sets
===================
BS Key Size Device Type Elapsed Time Completion Time
------- ---------- ----------- ------------ -------------------
1 3.50K DISK 00:00:00 2015-05-02 15:44:51
BP Key: 1 Status: AVAILABLE Compressed: NO Tag: TAG20150502T154451
Piece Name: /tmp/2015_05_02/o1_mf_annnn_TAG20150502T154451_bn903mln_.bkp
List of Archived Logs in backup set 1
Thrd Seq Low SCN Low Time Next SCN Next Time
---- ------- ---------- ------------------- ---------- ---------
1 17 1166181 2015-05-02 15:44:02 1166209 2015-05-02 15:44:51
BS Key Size Device Type Elapsed Time Completion Time
------- ---------- ----------- ------------ -------------------
2 29.82M DISK 00:00:00 2015-05-02 15:44:02
BP Key: 2 Status: AVAILABLE Compressed: NO Tag: TAG20150502T154402
Piece Name: /tmp/2015_05_02/o1_mf_annnn_TAG20150502T154402_bn9022tb_.bkp
List of Archived Logs in backup set 2
Thrd Seq Low SCN Low Time Next SCN Next Time
---- ------- ---------- ------------------- ---------- ---------
1 16 1145812 2015-05-02 11:31:52 1166181 2015-05-02 15:44:02
RMAN> list backupset of database;
List of Backup Sets
===================
BS Key Type LV Size Device Type Elapsed Time Completion Time
------- ---- -- ---------- ----------- ------------ -------------------
3 Full 1.07G DISK 00:00:00 2015-05-02 15:44:04
BP Key: 3 Status: AVAILABLE Compressed: NO Tag: TAG20150502T154404
Piece Name: /tmp/2015_05_02/o1_mf_nnndf_TAG20150502T154404_bn9025w1_.bkp
List of Datafiles in backup set 3
File LV Type Ckp SCN Ckp Time Name
---- -- ---- ---------- ------------------- ----
1 Full 1166189 2015-05-02 15:44:04 /tmp/2015_05_02/datafile1.dbf
2 Full 1166189 2015-05-02 15:44:04
3 Full 1166189 2015-05-02 15:44:04
4 Full 1166189 2015-05-02 15:44:04
5 Full 1166189 2015-05-02 15:44:04
6 Full 1166189 2015-05-02 15:44:04
由备份集我们可以看出，有16和17号的归档文件备份，有6个数据文件备份，这里我们使用dbms_backup_restore package 来restore datafile。请注意：datafile的名字不重要，只要对于要恢复的datafile，是唯一的名字即可。
[[email protected] dbs]$ sqlplus / as sysdba
SQL*Plus: Release 11.2.0.1.0 Production on Sun May 3 15:59:43 2015
Copyright (c) 1982, 2009, Oracle. All rights reserved.
Connected to:
Oracle Database 11g Enterprise Edition Release 11.2.0.1.0 - 64bit Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options
SQL>
SQL> DECLARE
2 devtype varchar2(256);
3 done boolean;
4 BEGIN
devtype := dbms_backup_restore.DeviceAllocate(type=>null, ident=>‘d1‘);
6 dbms_backup_restore.RestoreSetDatafile;
7 --dbms_backup_restore.RestoreDatafileTo(dfnumber => 1,toname => ‘/tmp/2015_05_02/datafile1.dbf‘);
8 dbms_backup_restore.RestoreDatafileTo(dfnumber => 2,toname => ‘/tmp/2015_05_02/datafile2.dbf‘);
9 dbms_backup_restore.RestoreDatafileTo(dfnumber => 3,toname => ‘/tmp/2015_05_02/datafile3.dbf‘);
10 dbms_backup_restore.RestoreDatafileTo(dfnumber => 4,toname => ‘/tmp/2015_05_02/datafile4.dbf‘);
11 dbms_backup_restore.RestoreDatafileTo(dfnumber => 5,toname => ‘/tmp/2015_05_02/datafile5.dbf‘);
12 dbms_backup_restore.RestoreDatafileTo(dfnumber => 6,toname => ‘/tmp/2015_05_02/datafile6.dbf‘);
13 dbms_backup_restore.RestoreBackupPiece(done => done,handle =>‘/tmp/2015_05_02/o1_mf_nnndf_TAG20150502T154404_bn9025w1_.bkp‘, params => null);
14 dbms_backup_restore.DeviceDeallocate;
15 END;
16 /
PL/SQL procedure successfully completed.
SQL>
SQL> set line 9999 pagesize 9999
SQL> col FILE_NAME format a50
SQL> select file#,name FILE_NAME,status from v$datafile;
FILE# FILE_NAME STATUS
---------- -------------------------------------------------- -------
1 /tmp/2015_05_02/datafile1.dbf SYSTEM
SQL> shutdown abort;
ORACLE instance shut down.
SQL>
告警日志：
Sun May 03 15:59:44 2015
Full restore complete of datafile 6 to datafile copy /tmp/2015_05_02/datafile6.dbf. Elapsed time: 0:00:00
checkpoint is 1166189
last deallocation scn is 995550
Full restore complete of datafile 4 to datafile copy /tmp/2015_05_02/datafile4.dbf. Elapsed time: 0:00:02
checkpoint is 1166189
last deallocation scn is 3
Full restore complete of datafile 3 to datafile copy /tmp/2015_05_02/datafile3.dbf. Elapsed time: 0:00:02
checkpoint is 1166189
last deallocation scn is 1157819
Undo Optimization current scn is 1157346
Sun May 03 16:00:30 2015
Full restore complete of datafile 5 to datafile copy /tmp/2015_05_02/datafile5.dbf. Elapsed time: 0:00:44
checkpoint is 1166189
last deallocation scn is 1015098
Sun May 03 16:01:03 2015
Full restore complete of datafile 2 to datafile copy /tmp/2015_05_02/datafile2.dbf. Elapsed time: 0:01:18
checkpoint is 1166189
last deallocation scn is 1090388
元数据显示只有datafile 1，不奇怪，刚刚创建控制文件的时候只带了一个sysem文件，那么我们就需要重建控制文件以便带上所有需要恢复的datafiles
STARTUP NOMOUNT
CREATE CONTROLFILE REUSE DATABASE "ORA11G" RESETLOGS ARCHIVELOG
MAXLOGFILES 16
MAXLOGMEMBERS 3
MAXDATAFILES 100
MAXINSTANCES 8
MAXLOGHISTORY 292
LOGFILE
GROUP 1 ‘/tmp/2015_05_02/redo01.log‘ SIZE 50M BLOCKSIZE 512,
GROUP 2 ‘/tmp/2015_05_02/redo02.log‘ SIZE 50M BLOCKSIZE 512,
GROUP 3 ‘/tmp/2015_05_02/redo03.log‘ SIZE 50M BLOCKSIZE 512
-- STANDBY LOGFILE
DATAFILE
‘/tmp/2015_05_02/datafile1.dbf‘,
‘/tmp/2015_05_02/datafile2.dbf‘,
‘/tmp/2015_05_02/datafile3.dbf‘,
‘/tmp/2015_05_02/datafile4.dbf‘,
‘/tmp/2015_05_02/datafile5.dbf‘,
‘/tmp/2015_05_02/datafile6.dbf‘
CHARACTER SET ZHS16GBK
;
SQL> startup nomount;
ORACLE instance started.
Total System Global Area 217157632 bytes
Fixed Size 2211928 bytes
Variable Size 159387560 bytes
Database Buffers 50331648 bytes
Redo Buffers 5226496 bytes
SQL>
SQL> CREATE CONTROLFILE REUSE DATABASE "ORA11G" RESETLOGS ARCHIVELOG
2 MAXLOGFILES 16
3 MAXLOGMEMBERS 3
4 MAXDATAFILES 100
5 MAXINSTANCES 8
6 MAXLOGHISTORY 292
7 LOGFILE
8 GROUP 1 ‘/tmp/2015_05_02/redo01.log‘ SIZE 50M BLOCKSIZE 512,
9 GROUP 2 ‘/tmp/2015_05_02/redo02.log‘ SIZE 50M BLOCKSIZE 512,
10 GROUP 3 ‘/tmp/2015_05_02/redo03.log‘ SIZE 50M BLOCKSIZE 512
11 -- STANDBY LOGFILE
12 DATAFILE
13 ‘/tmp/2015_05_02/datafile1.dbf‘,
14 ‘/tmp/2015_05_02/datafile2.dbf‘,
15 ‘/tmp/2015_05_02/datafile3.dbf‘,
16 ‘/tmp/2015_05_02/datafile4.dbf‘,
17 ‘/tmp/2015_05_02/datafile5.dbf‘,
18 ‘/tmp/2015_05_02/datafile6.dbf‘
19 CHARACTER SET ZHS16GBK
20 ;
Control file created.
SQL>
SQL> set line 9999 pagesize 9999
SQL> col FILE_NAME format a50
SQL> select file#,name FILE_NAME,status from v$datafile;
FILE# FILE_NAME STATUS
---------- -------------------------------------------------- -------
1 /tmp/2015_05_02/datafile1.dbf SYSTEM
2 /tmp/2015_05_02/datafile2.dbf RECOVER
3 /tmp/2015_05_02/datafile3.dbf RECOVER
4 /tmp/2015_05_02/datafile4.dbf RECOVER
5 /tmp/2015_05_02/datafile5.dbf RECOVER
6 /tmp/2015_05_02/datafile6.dbf RECOVER
6 rows selected.
SQL>
若是该备份不是冷备份，那么我们需要recover database，我们需要catalog 包括archivelog的backuppiece，然后restore archivelog，然后再recover
[[email protected] dbs]$ rman target /
Recovery Manager: Release 11.2.0.1.0 - Production on Sun May 3 16:21:53 2015
Copyright (c) 1982, 2009, Oracle and/or its affiliates. All rights reserved.
connected to target database: ORA11G (DBID=4270446895, not open)
RMAN> list backupset;
using target database control file instead of recovery catalog
specification does not match any backup in the repository
RMAN> catalog start with ‘/tmp/2015_05_02/‘;
searching for all files that match the pattern /tmp/2015_05_02/
List of Files Unknown to the Database
=====================================
File Name: /tmp/2015_05_02/o1_mf_annnn_TAG20150502T154451_bn903mln_.bkp
File Name: /tmp/2015_05_02/o1_mf_annnn_TAG20150502T154402_bn9022tb_.bkp
File Name: /tmp/2015_05_02/o1_mf_nnndf_TAG20150502T154404_bn9025w1_.bkp
Do you really want to catalog the above files (enter YES or NO)? yes
cataloging files...
cataloging done
List of Cataloged Files
=======================
File Name: /tmp/2015_05_02/o1_mf_annnn_TAG20150502T154451_bn903mln_.bkp
File Name: /tmp/2015_05_02/o1_mf_annnn_TAG20150502T154402_bn9022tb_.bkp
File Name: /tmp/2015_05_02/o1_mf_nnndf_TAG20150502T154404_bn9025w1_.bkp
RMAN> recover database;
Starting recover at 2015-05-03 16:23:31
allocated channel: ORA_DISK_1
channel ORA_DISK_1: SID=96 device type=DISK
starting media recovery
channel ORA_DISK_1: starting archived log restore to default destination
channel ORA_DISK_1: restoring archived log
archived log thread=1 sequence=17
channel ORA_DISK_1: reading from backup piece /tmp/2015_05_02/o1_mf_annnn_TAG20150502T154451_bn903mln_.bkp
channel ORA_DISK_1: piece handle=/tmp/2015_05_02/o1_mf_annnn_TAG20150502T154451_bn903mln_.bkp tag=TAG20150502T154451
channel ORA_DISK_1: restored backup piece 1
channel ORA_DISK_1: restore complete, elapsed time: 00:00:01
archived log file name=/u01/app/oracle/product/11.2.0/dbhome_1/dbs/arch1_17_874246769.dbf thread=1 sequence=17
unable to find archived log
archived log thread=1 sequence=18
RMAN-00571: ===========================================================
RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ===============
RMAN-00571: ===========================================================
RMAN-03002: failure of recover command at 05/03/2015 16:23:34
RMAN-06054: media recovery requesting unknown archived log for thread 1 with sequence 18 and starting SCN of 1166209
RMAN> recover database until sequence 18;
Starting recover at 2015-05-03 16:23:44
using channel ORA_DISK_1
starting media recovery
media recovery complete, elapsed time: 00:00:00
Finished recover at 2015-05-03 16:23:44
RMAN> alter database open resetlogs;
database opened
RMAN>
RMAN> exit
Recovery Manager complete.
[[email protected] dbs]$ sqlplus / as sysdba
SQL*Plus: Release 11.2.0.3.0 Production on Sun May 3 16:41:58 2015
Copyright (c) 1982, 2011, Oracle. All rights reserved.
Connected to:
Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - 64bit Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options
SQL> show parameter name
NAME TYPE VALUE
------------------------------------ ----------- ------------------------------
db_file_name_convert string
db_name string ORA11G
db_unique_name string ORA11G
global_names boolean FALSE
instance_name string tmp
lock_name_space string
log_file_name_convert string
processor_group_name string
service_names string ORA11G
SQL>
SQL> shutdown immediate;
Database closed.
Database dismounted.
ORACLE instance shut down.
SQL> startup
ORACLE instance started.
Total System Global Area 250560512 bytes
Fixed Size 2227256 bytes
Variable Size 192938952 bytes
Database Buffers 50331648 bytes
Redo Buffers 5062656 bytes
Database mounted.
Database opened.
SQL> set line 9999 pagesize 9999
SQL> col FILE_NAME format a50
SQL> select file#,name FILE_NAME,status from v$datafile;
FILE# FILE_NAME STATUS
---------- -------------------------------------------------- -------
1 /tmp/2015_05_02/datafile1.dbf SYSTEM
2 /tmp/2015_05_02/datafile2.dbf ONLINE
3 /tmp/2015_05_02/datafile3.dbf ONLINE
4 /tmp/2015_05_02/datafile4.dbf ONLINE
5 /tmp/2015_05_02/datafile5.dbf ONLINE
6 /tmp/2015_05_02/datafile6.dbf ONLINE
6 rows selected.
SQL>
SQL> col FILE_NAME format a50
SQL> select FILE_NAME,FILE_ID,a.TABLESPACE_NAME, b.status ts_status ,BYTES from dba_data_files a,dba_tablespaces b where a.TABLESPACE_NAME=b.TABLESPACE_NAME;
FILE_NAME FILE_ID TABLESPACE_NAME TS_STATUS BYTES
-------------------------------------------------- ---------- ------------------------------ --------- ----------
/tmp/2015_05_02/datafile6.dbf 6 AA ONLINE 5242880
/tmp/2015_05_02/datafile5.dbf 5 EXAMPLE ONLINE 328335360
/tmp/2015_05_02/datafile4.dbf 4 USERS ONLINE 15728640
/tmp/2015_05_02/datafile3.dbf 3 UNDOTBS1 ONLINE 99614720
/tmp/2015_05_02/datafile2.dbf 2 SYSAUX ONLINE 576716800
/tmp/2015_05_02/datafile1.dbf 1 SYSTEM ONLINE 754974720
6 rows selected.
SQL> select count(1) from lhr.test;
COUNT(1)
----------
75204
recover 过程告警日志：
Sun May 03 16:39:56 2015
alter database recover datafile list clear
Completed: alter database recover datafile list clear
alter database recover datafile list
1 , 2 , 3 , 4 , 5 , 6
Completed: alter database recover datafile list
1 , 2 , 3 , 4 , 5 , 6
alter database recover if needed
start until cancel using backup controlfile
Media Recovery Start
started logmerger process
Parallel Media Recovery started with 2 slaves
ORA-279 signalled during: alter database recover if needed
start until cancel using backup controlfile
...
alter database recover logfile ‘/u02/app/oracle/product/11.2.0/dbhome_1/dbs/arch1_17_874246769.dbf‘
Media Recovery Log /u02/app/oracle/product/11.2.0/dbhome_1/dbs/arch1_17_874246769.dbf
ORA-279 signalled during: alter database recover logfile ‘/u02/app/oracle/product/11.2.0/dbhome_1/dbs/arch1_17_874246769.dbf‘...
alter database recover cancel
Media Recovery Canceled
Completed: alter database recover cancel
临时文件的处理：
SQL>
SQL> select * from v$tempfile;
no rows selected
SQL> create temporary tablespace TEMP01 tempfile ‘/tmp/2015_05_02/temp01.dbf‘ size 100m autoextend on next 10m;
Tablespace created.
SQL> alter database default temporary tablespace temp01;
Database altered.
SQL>
SQL> col name for a100
SQL> select file#,name from v$tempfile;
FILE# NAME
---------- ----------------------------------------------------------------------------------------------------
1 /tmp/2015_05_02/temp01.dbf
SQL>
接下来就是把数据文件命名格式化，执行如下代码：
shutdown immediate;
cp /tmp/2015_05_02/*.dbf /u02/app/oracle/oradata/ORA11G/
cp /tmp/2015_05_02/*.log /u02/app/oracle/oradata/ORA11G/
mv datafile1.dbf AA.dbf
mv datafile5.dbf EXAMPLE01.dbf
mv AA.dbf SYSTEM01.dbf
mv datafile4.dbf USERS01.dbf
mv datafile3.dbf UNDOTBS1.dbf
mv datafile2.dbf SYSAUX01.dbf
mv datafile6.dbf AA.dbf
startup mount
alter database rename file‘/tmp/2015_05_02/datafile6.dbf‘ to ‘/u02/app/oracle/oradata/ORA11G/AA.dbf‘;
alter database rename file‘/tmp/2015_05_02/datafile5.dbf‘ to ‘/u02/app/oracle/oradata/ORA11G/EXAMPLE01.dbf‘;
alter database rename file‘/tmp/2015_05_02/datafile4.dbf‘ to ‘/u02/app/oracle/oradata/ORA11G/USERS01.dbf‘;
alter database rename file‘/tmp/2015_05_02/datafile3.dbf‘ to ‘/u02/app/oracle/oradata/ORA11G/UNDOTBS1.dbf‘;
alter database rename file‘/tmp/2015_05_02/datafile2.dbf‘ to ‘/u02/app/oracle/oradata/ORA11G/SYSAUX01.dbf‘;
alter database rename file‘/tmp/2015_05_02/datafile1.dbf‘ to ‘/u02/app/oracle/oradata/ORA11G/SYSTEM01.dbf‘;
SQL> set line 9999 pagesize 9999
SQL> col FILE_NAME format a50
SQL> select file#,name FILE_NAME,status from v$datafile;
FILE# FILE_NAME STATUS
---------- -------------------------------------------------- -------
1 /u02/app/oracle/oradata/ORA11G/SYSTEM01.dbf SYSTEM
2 /u02/app/oracle/oradata/ORA11G/SYSAUX01.dbf ONLINE
3 /u02/app/oracle/oradata/ORA11G/UNDOTBS1.dbf ONLINE
4 /u02/app/oracle/oradata/ORA11G/USERS01.dbf ONLINE
5 /u02/app/oracle/oradata/ORA11G/EXAMPLE01.dbf ONLINE
6 /u02/app/oracle/oradata/ORA11G/AA.dbf ONLINE
6 rows selected.
SQL> alter database open;
Database altered.
SQL> set line 9999 pagesize 9999
SQL> col FILE_NAME format a50
SQL> select file#,name FILE_NAME,status from v$datafile;
FILE# FILE_NAME STATUS
---------- -------------------------------------------------- -------
1 /u02/app/oracle/oradata/ORA11G/SYSTEM01.dbf SYSTEM
2 /u02/app/oracle/oradata/ORA11G/SYSAUX01.dbf ONLINE
3 /u02/app/oracle/oradata/ORA11G/UNDOTBS1.dbf ONLINE
4 /u02/app/oracle/oradata/ORA11G/USERS01.dbf ONLINE
5 /u02/app/oracle/oradata/ORA11G/EXAMPLE01.dbf ONLINE
6 /u02/app/oracle/oradata/ORA11G/AA.dbf ONLINE
6 rows selected.
SQL> col FILE_NAME format a50
SQL> select FILE_NAME,FILE_ID,a.TABLESPACE_NAME, b.status ts_status ,BYTES from dba_data_files a,dba_tablespaces b where a.TABLESPACE_NAME=b.TABLESPACE_NAME;
FILE_NAME FILE_ID TABLESPACE_NAME TS_STATUS BYTES
-------------------------------------------------- ---------- ------------------------------ --------- ----------
/u02/app/oracle/oradata/ORA11G/AA.dbf 6 AA ONLINE 5242880
/u02/app/oracle/oradata/ORA11G/EXAMPLE01.dbf 5 EXAMPLE ONLINE 328335360
/u02/app/oracle/oradata/ORA11G/USERS01.dbf 4 USERS ONLINE 15728640
/u02/app/oracle/oradata/ORA11G/UNDOTBS1.dbf 3 UNDOTBS1 ONLINE 99614720
/u02/app/oracle/oradata/ORA11G/SYSAUX01.dbf 2 SYSAUX ONLINE 576716800
/u02/app/oracle/oradata/ORA11G/SYSTEM01.dbf 1 SYSTEM ONLINE 754974720
6 rows selected.
SQL>
好了，至此，整个数据库恢复完成，至于修改INSTANCE_NAME，pfile文件，密码文件、tnsnames文件，这些都是基本功了，这里就不赘述了。