noarchive非歸檔模式下如何使用增量備份恢復(fù)數(shù)據(jù)庫

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實(shí)驗(yàn)開始：

1)    撤銷數(shù)據(jù)庫archivelog模式
SQL> archive log list;
Database log mode              Archive Mode
Automatic archival             Enabled
Archive destination            USE_DB_RECOVERY_FILE_DEST
Oldest online log sequence     1
Next log sequence to archive   1
Current log sequence           1
SQL>
SQL> shutdown immediate;
Database closed.
Database dismounted.
ORACLE instance shut down.
SQL>
SQL> startup mount;
ORACLE instance started.

Total System Global Area  835104768 bytes
Fixed Size                  2257840 bytes
Variable Size             549456976 bytes
Database Buffers          281018368 bytes
Redo Buffers                2371584 bytes
Database mounted.
SQL>
SQL> alter database noarchivelog;

Database altered.

SQL> alter database open;

Database altered.

SQL>
SQL>
SQL> archive log list;
Database log mode              No Archive Mode
Automatic archival             Disabled
Archive destination            USE_DB_RECOVERY_FILE_DEST
Oldest online log sequence     1
Current log sequence           1
SQL>            


2)    創(chuàng)建測試用表及數(shù)據(jù)
SQL> create table t(x int) tablespace users;

Table created.

SQL> insert into t values(1);

1 row created.

SQL> commit;

Commit complete.

3)    在noarchivelog模式下，0級備份（關(guān)庫mount下備份）
[oracle@wang ~]$ rman target /

Recovery Manager: Release 11.2.0.4.0 - Production on Fri Dec 8 20:50:52 2017

Copyright (c) 1982, 2011, Oracle and/or its affiliates.  All rights reserved.

connected to target database: DBDB (DBID=3282897732)

RMAN> run{
   shutdown immediate;
   startup mount;
   backup as backupset incremental level 0 database;
   alter database open;
   }

using target database control file instead of recovery catalog
database closed
database dismounted
Oracle instance shut down

connected to target database (not started)
Oracle instance started
database mounted

Total System Global Area     835104768 bytes

Fixed Size                     2257840 bytes
Variable Size                549456976 bytes
Database Buffers             281018368 bytes
Redo Buffers                   2371584 bytes

Starting backup at 08-DEC-17
allocated channel: ORA_DISK_1
channel ORA_DISK_1: SID=18 device type=DISK
channel ORA_DISK_1: starting incremental level 0 datafile backup set
channel ORA_DISK_1: specifying datafile(s) in backup set
input datafile file number=00004 name=/u01/app/oracle/oradata/DBdb/users01.dbf
input datafile file number=00006 name=/u01/app/oracle/fast_recovery_area/DBDB/newback/ts_xxf_01.dbf
input datafile file number=00001 name=/u01/app/oracle/oradata/DBdb/system01.dbf
input datafile file number=00003 name=/u01/app/oracle/oradata/DBdb/undotbs01.dbf
channel ORA_DISK_1: starting piece 1 at 08-DEC-17
 channel ORA_DISK_1: finished piece 1 at 08-DEC-17
piece handle=/u01/app/oracle/fast_recovery_area/DBDB/newback/DBDB/backupset/2017_12_08/o1_mf_nnnd0_TAG20171208T205150_f2o2q6sv_.bkp tag=TAG20171208T205150 comment=NONE
channel ORA_DISK_1: backup set complete, elapsed time: 00:00:55
channel ORA_DISK_1: starting incremental level 0 datafile backup set
channel ORA_DISK_1: specifying datafile(s) in backup set
input datafile file number=00002 name=/u01/app/oracle/oradata/DBdb/sysaux01.dbf
input datafile file number=00005 name=/u01/app/oracle/oradata/DBdb/example01.dbf
channel ORA_DISK_1: starting piece 1 at 08-DEC-17
channel ORA_DISK_1: finished piece 1 at 08-DEC-17
piece handle=/u01/app/oracle/fast_recovery_area/DBDB/newback/DBDB/backupset/2017_12_08/o1_mf_nnnd0_TAG20171208T205150_f2o2rxwz_.bkp tag=TAG20171208T205150 comment=NONE
channel ORA_DISK_1: backup set complete, elapsed time: 00:00:25
channel ORA_DISK_1: starting incremental level 0 datafile backup set
channel ORA_DISK_1: specifying datafile(s) in backup set
including current control file in backup set
including current SPFILE in backup set
channel ORA_DISK_1: starting piece 1 at 08-DEC-17
channel ORA_DISK_1: finished piece 1 at 08-DEC-17
piece handle=/u01/app/oracle/fast_recovery_area/DBDB/newback/DBDB/backupset/2017_12_08/o1_mf_ncsn0_TAG20171208T205150_f2o2sr2v_.bkp tag=TAG20171208T205150 comment=NONE
channel ORA_DISK_1: backup set complete, elapsed time: 00:00:01
Finished backup at 08-DEC-17

database opened

RMAN>  

4)    在noarchivelog模式下，1級備份(關(guān)庫mount下備份)
--先操作：
SQL> select * from t;

         X
----------
         1

SQL> insert into t values(2);

1 row created.

SQL> commit;

Commit complete.

SQL> select * from t;

         X
----------
         2
         1

--開始備份：
RMAN>run{
   shutdown immediate;
   startup mount;
   backup as backupset incremental level 1 database;
   alter database open;
   }
   
database closed
database dismounted
Oracle instance shut down

connected to target database (not started)
Oracle instance started
database mounted

Total System Global Area     835104768 bytes

Fixed Size                     2257840 bytes
Variable Size                549456976 bytes
Database Buffers             281018368 bytes
Redo Buffers                   2371584 bytes

Starting backup at 09-DEC-17
allocated channel: ORA_DISK_1
channel ORA_DISK_1: SID=18 device type=DISK
channel ORA_DISK_1: starting incremental level 1 datafile backup set
channel ORA_DISK_1: specifying datafile(s) in backup set
input datafile file number=00004 name=/u01/app/oracle/oradata/DBdb/users01.dbf
input datafile file number=00006 name=/u01/app/oracle/fast_recovery_area/DBDB/newback/ts_xxf_01.dbf
input datafile file number=00001 name=/u01/app/oracle/oradata/DBdb/system01.dbf
input datafile file number=00003 name=/u01/app/oracle/oradata/DBdb/undotbs01.dbf
channel ORA_DISK_1: starting piece 1 at 09-DEC-17
channel ORA_DISK_1: finished piece 1 at 09-DEC-17
piece handle=/u01/app/oracle/fast_recovery_area/DBDB/newback/DBDB/backupset/2017_12_09/o1_mf_nnnd1_TAG20171209T005144_f2ojs0o5_.bkp tag=TAG20171209T005144 comment=NONE
channel ORA_DISK_1: backup set complete, elapsed time: 00:00:03
channel ORA_DISK_1: starting incremental level 1 datafile backup set
channel ORA_DISK_1: specifying datafile(s) in backup set
input datafile file number=00002 name=/u01/app/oracle/oradata/DBdb/sysaux01.dbf
input datafile file number=00005 name=/u01/app/oracle/oradata/DBdb/example01.dbf
channel ORA_DISK_1: starting piece 1 at 09-DEC-17
channel ORA_DISK_1: finished piece 1 at 09-DEC-17
piece handle=/u01/app/oracle/fast_recovery_area/DBDB/newback/DBDB/backupset/2017_12_09/o1_mf_nnnd1_TAG20171209T005144_f2ojs3p5_.bkp tag=TAG20171209T005144 comment=NONE
channel ORA_DISK_1: backup set complete, elapsed time: 00:00:01
channel ORA_DISK_1: starting incremental level 1 datafile backup set
channel ORA_DISK_1: specifying datafile(s) in backup set
including current control file in backup set
including current SPFILE in backup set
channel ORA_DISK_1: starting piece 1 at 09-DEC-17
channel ORA_DISK_1: finished piece 1 at 09-DEC-17
piece handle=/u01/app/oracle/fast_recovery_area/DBDB/newback/DBDB/backupset/2017_12_09/o1_mf_ncsn1_TAG20171209T005144_f2ojs5v4_.bkp tag=TAG20171209T005144 comment=NONE
channel ORA_DISK_1: backup set complete, elapsed time: 00:00:01
Finished backup at 09-DEC-17

database opened

RMAN>  


6)    模擬故障，刪除所有控制文件、日志文件、數(shù)據(jù)文件、參數(shù)文件
SQL> conn / as sysdba
Connected.
SQL> select name from v$datafile;

NAME
-----------------------------------------------------------------------------------
/u01/app/oracle/oradata/DBdb/system01.dbf
/u01/app/oracle/oradata/DBdb/sysaux01.dbf
/u01/app/oracle/oradata/DBdb/undotbs01.dbf
/u01/app/oracle/oradata/DBdb/users01.dbf
/u01/app/oracle/oradata/DBdb/example01.dbf
/u01/app/oracle/fast_recovery_area/DBDB/newback/ts_xxf_01.dbf

6 rows selected.

SQL> show parameter spfile

NAME                                 TYPE        VALUE
------------------------------------ ----------- ------------------------------
spfile                               string      /u01/app/oracle/product/11.2.0/db_1/dbs/spfileDBdb.ora


--刪除：
[oracle@wang ~]$ cd /u01/app/oracle/oradata/DBdb/            
[oracle@wang DBdb]$ ls -lrt
total 9887200
-rw-r----- 1 oracle oinstall   52429312 Dec  9 00:51 redo02.log
-rw-r----- 1 oracle oinstall   52429312 Dec  9 00:51 redo03.log
-rw-r----- 1 oracle oinstall 3207340032 Dec  9 00:51 users01.dbf
-rw-r----- 1 oracle oinstall  355213312 Dec  9 00:51 example01.dbf
-rw-r----- 1 oracle oinstall   20979712 Dec  9 00:51 temp01.dbf
-rw-r----- 1 oracle oinstall 2710577152 Dec  9 01:51 undotbs01.dbf
-rw-r----- 1 oracle oinstall  744497152 Dec  9 01:54 sysaux01.dbf
-rw-r----- 1 oracle oinstall 2936020992 Dec  9 01:54 system01.dbf
-rw-r----- 1 oracle oinstall   52429312 Dec  9 01:58 redo01.log
-rw-r----- 1 oracle oinstall   10272768 Dec  9 01:58 control01.ctl
[oracle@wang DBdb]$ rm -rf *
[oracle@wang DBdb]$
[oracle@wang DBdb]$ cd /u01/app/oracle/fast_recovery_area/DBDB/newback/              
[oracle@wang newback]$ ls
DBDB  lost+found  oradataback  ts_xxf_01.dbf
[oracle@wang newback]$ rm -rf ts_xxf_01.dbf
[oracle@wang newback]$
[oracle@wang newback]$ cd /u01/app/oracle/product/11.2.0/db_1/dbs/              
[oracle@wang dbs]$ ls
hc_DBdb.dat  init.ora  initDBdb.ora  lkDBDB  orapwDBdb  snapcf_DBdb.f  spfileDBdb.ora
[oracle@wang dbs]$ mv spfileDBdb.ora spfileDBdb.ora.bak_2017
[oracle@wang dbs]$ ls
hc_DBdb.dat  init.ora  initDBdb.ora  lkDBDB  orapwDBdb  snapcf_DBdb.f  spfileDBdb.ora.bak_2017
[oracle@wang dbs]$

7)  執(zhí)行恢復(fù)
--強(qiáng)制關(guān)機(jī)（日志里有報錯信息）
SQL> shutdown abort;
ORACLE instance shut down.
SQL>

--啟動rman：
[oracle@wang ~]$ rman target /

Recovery Manager: Release 11.2.0.4.0 - Production on Sat Dec 9 02:04:33 2017

Copyright (c) 1982, 2011, Oracle and/or its affiliates.  All rights reserved.

connected to target database (not started)

--強(qiáng)制啟動到nomount模式
RMAN> startup nomount;

Oracle instance started

Total System Global Area     835104768 bytes

Fixed Size                     2257840 bytes
Variable Size                587205712 bytes
Database Buffers             243269632 bytes
Redo Buffers                   2371584 bytes

--恢復(fù)參數(shù)文件，最好使用最后一次增量備份的備份介質(zhì)：
RMAN> restore spfile from "/u01/app/oracle/fast_recovery_area/DBDB/newback/DBDB/backupset/2017_12_09/o1_mf_ncsn1_TAG20171209T005144_f2ojs5v4_.bkp";

Starting restore at 09-DEC-17
using channel ORA_DISK_1

channel ORA_DISK_1: restoring spfile from AUTOBACKUP /u01/app/oracle/fast_recovery_area/DBDB/newback/DBDB/backupset/2017_12_09/o1_mf_ncsn1_TAG20171209T005144_f2ojs5v4_.bkp
channel ORA_DISK_1: SPFILE restore from AUTOBACKUP complete
Finished restore at 09-DEC-17

RMAN>  

--完成參數(shù)文件的恢復(fù)，利用恢復(fù)的參數(shù)文件啟動到nomount模式（也可以使用rman工具）
SQL>  shutdown abort;
ORACLE instance shut down.
SQL>
SQL>  startup nomount;
ORACLE instance started.

Total System Global Area  835104768 bytes
Fixed Size                  2257840 bytes
Variable Size             549456976 bytes
Database Buffers          281018368 bytes
Redo Buffers                2371584 bytes
SQL>
SQL>   


--恢復(fù)控制文件，注意：此處恢復(fù)控制文件，一定要使用最后一次增量備份的備份介質(zhì)，否則會因?yàn)榘姹镜膯栴}導(dǎo)致恢復(fù)出現(xiàn)問題：
RMAN> restore controlfile from "/u01/app/oracle/fast_recovery_area/DBDB/newback/DBDB/backupset/2017_12_09/o1_mf_ncsn1_TAG20171209T005144_f2ojs5v4_.bkp";

Starting restore at 09-DEC-17
using target database control file instead of recovery catalog
allocated channel: ORA_DISK_1
channel ORA_DISK_1: SID=20 device type=DISK

channel ORA_DISK_1: restoring control file
channel ORA_DISK_1: restore complete, elapsed time: 00:00:03
output file name=/u01/app/oracle/oradata/DBdb/control01.ctl
output file name=/u01/app/oracle/fast_recovery_area/DBdb/control02.ctl
Finished restore at 09-DEC-17


--控制文件恢復(fù)完成，數(shù)據(jù)庫啟動到mount模式
RMAN> alter database mount;

database mounted
released channel: ORA_DISK_1

RMAN>

--執(zhí)行全庫的還原
RMAN> restore database;

Starting restore at 09-DEC-17
Starting implicit crosscheck backup at 09-DEC-17
allocated channel: ORA_DISK_1
channel ORA_DISK_1: SID=20 device type=DISK
Crosschecked 12 objects
Finished implicit crosscheck backup at 09-DEC-17

Starting implicit crosscheck copy at 09-DEC-17
using channel ORA_DISK_1
Crosschecked 1 objects
Finished implicit crosscheck copy at 09-DEC-17

searching for all files in the recovery area
cataloging files...
cataloging done

List of Cataloged Files
=======================
File Name: /u01/app/oracle/fast_recovery_area/DBDB/newback/DBDB/backupset/2017_12_09/o1_mf_ncsn1_TAG20171209T005144_f2ojs5v4_.bkp

using channel ORA_DISK_1

channel ORA_DISK_1: starting datafile backup set restore
channel ORA_DISK_1: specifying datafile(s) to restore from backup set
channel ORA_DISK_1: restoring datafile 00001 to /u01/app/oracle/oradata/DBdb/system01.dbf
channel ORA_DISK_1: restoring datafile 00003 to /u01/app/oracle/oradata/DBdb/undotbs01.dbf
channel ORA_DISK_1: restoring datafile 00004 to /u01/app/oracle/oradata/DBdb/users01.dbf
channel ORA_DISK_1: restoring datafile 00006 to /u01/app/oracle/fast_recovery_area/DBDB/newback/ts_xxf_01.dbf
channel ORA_DISK_1: reading from backup piece /u01/app/oracle/fast_recovery_area/DBDB/newback/DBDB/backupset/2017_12_08/o1_mf_nnnd0_TAG20171208T205150_f2o2q6sv_.bkp
  channel ORA_DISK_1: piece handle=/u01/app/oracle/fast_recovery_area/DBDB/newback/DBDB/backupset/2017_12_08/o1_mf_nnnd0_TAG20171208T205150_f2o2q6sv_.bkp tag=TAG20171208T205150
channel ORA_DISK_1: restored backup piece 1
channel ORA_DISK_1: restore complete, elapsed time: 00:02:15
channel ORA_DISK_1: starting datafile backup set restore
channel ORA_DISK_1: specifying datafile(s) to restore from backup set
channel ORA_DISK_1: restoring datafile 00002 to /u01/app/oracle/oradata/DBdb/sysaux01.dbf
channel ORA_DISK_1: restoring datafile 00005 to /u01/app/oracle/oradata/DBdb/example01.dbf
channel ORA_DISK_1: reading from backup piece /u01/app/oracle/fast_recovery_area/DBDB/newback/DBDB/backupset/2017_12_08/o1_mf_nnnd0_TAG20171208T205150_f2o2rxwz_.bkp
channel ORA_DISK_1: piece handle=/u01/app/oracle/fast_recovery_area/DBDB/newback/DBDB/backupset/2017_12_08/o1_mf_nnnd0_TAG20171208T205150_f2o2rxwz_.bkp tag=TAG20171208T205150
channel ORA_DISK_1: restored backup piece 1
channel ORA_DISK_1: restore complete, elapsed time: 00:00:25
Finished restore at 09-DEC-17

RMAN>

--由于非歸檔，且聯(lián)機(jī)重做日志丟失，所以使用noredo子句進(jìn)行恢復(fù)
RMAN>  recover database;

Starting recover at 09-DEC-17
using channel ORA_DISK_1
channel ORA_DISK_1: starting incremental datafile backup set restore
channel ORA_DISK_1: specifying datafile(s) to restore from backup set
destination for restore of datafile 00001: /u01/app/oracle/oradata/DBdb/system01.dbf
destination for restore of datafile 00003: /u01/app/oracle/oradata/DBdb/undotbs01.dbf
destination for restore of datafile 00004: /u01/app/oracle/oradata/DBdb/users01.dbf
destination for restore of datafile 00006: /u01/app/oracle/fast_recovery_area/DBDB/newback/ts_xxf_01.dbf
channel ORA_DISK_1: reading from backup piece /u01/app/oracle/fast_recovery_area/DBDB/newback/DBDB/backupset/2017_12_09/o1_mf_nnnd1_TAG20171209T005144_f2ojs0o5_.bkp
channel ORA_DISK_1: piece handle=/u01/app/oracle/fast_recovery_area/DBDB/newback/DBDB/backupset/2017_12_09/o1_mf_nnnd1_TAG20171209T005144_f2ojs0o5_.bkp tag=TAG20171209T005144
channel ORA_DISK_1: restored backup piece 1
channel ORA_DISK_1: restore complete, elapsed time: 00:00:03
channel ORA_DISK_1: starting incremental datafile backup set restore
channel ORA_DISK_1: specifying datafile(s) to restore from backup set
destination for restore of datafile 00002: /u01/app/oracle/oradata/DBdb/sysaux01.dbf
destination for restore of datafile 00005: /u01/app/oracle/oradata/DBdb/example01.dbf
channel ORA_DISK_1: reading from backup piece /u01/app/oracle/fast_recovery_area/DBDB/newback/DBDB/backupset/2017_12_09/o1_mf_nnnd1_TAG20171209T005144_f2ojs3p5_.bkp
channel ORA_DISK_1: piece handle=/u01/app/oracle/fast_recovery_area/DBDB/newback/DBDB/backupset/2017_12_09/o1_mf_nnnd1_TAG20171209T005144_f2ojs3p5_.bkp tag=TAG20171209T005144
channel ORA_DISK_1: restored backup piece 1
channel ORA_DISK_1: restore complete, elapsed time: 00:00:03

starting media recovery

RMAN-08187: WARNING: media recovery until SCN 3974526 complete
Finished recover at 09-DEC-17

RMAN>

RMAN> recover database noredo;                                  

Starting recover at 09-DEC-17
using channel ORA_DISK_1

Finished recover at 09-DEC-17

RMAN>


--恢復(fù)完成，resetlogs方式打開數(shù)據(jù)庫，完成所有文件丟失的恢復(fù)
RMAN> alter database open resetlogs;

database opened

RMAN>  


8) 驗(yàn)證在測試前（增量備份前）插入的數(shù)據(jù)
SQL> select status  from v$instance;

STATUS
------------
OPEN

SQL> select * from t;

         X
----------
         2
         1

SQL>

以上是“noarchive非歸檔模式下如何使用增量備份恢復(fù)數(shù)據(jù)庫”這篇文章的所有內(nèi)容，感謝各位的閱讀！相信大家都有了一定的了解，希望分享的內(nèi)容對大家有所幫助，如果還想學(xué)習(xí)更多知識，歡迎關(guān)注億速云行業(yè)資訊頻道！