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OracleDG從庫Rman如何實現(xiàn)備份恢復(fù)測試

這篇文章主要介紹了Oracle DG從庫Rman如何實現(xiàn)備份恢復(fù)測試，具有一定借鑒價值，感興趣的朋友可以參考下，希望大家閱讀完這篇文章之后大有收獲，下面讓小編帶著大家一起了解一下。

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1.系統(tǒng)初始化和數(shù)據(jù)庫安裝

略

2.參數(shù)文件恢復(fù)

RMAN> startup nomount ;     

startup failed: ORA-01078: failure in processing system parameters

LRM-00109: could not open parameter file '/U01/app/oracle/product/11.2.0.4/dbs/inittest.ora'

starting Oracle instance without parameter file for retrieval of spfile

Oracle instance started

Total System Global Area    1068937216 bytes

Fixed Size                     2260088 bytes

Variable Size                301990792 bytes

Database Buffers             754974720 bytes

Redo Buffers                   9711616 bytes

RMAN> restore spfile from '/U01/tools/20170310/full_TEST_20170310_3839';

Starting restore at 2017-03-10 15:14:11

allocated channel: ORA_DISK_1

channel ORA_DISK_1: SID=1345 device type=DISK

channel ORA_DISK_1: restoring spfile from AUTOBACKUP /U01/tools/20170310/full_TEST_20170310_3839

channel ORA_DISK_1: SPFILE restore from AUTOBACKUP complete

Finished restore at 2017-03-10 15:14:12

SQL> shutdown immediate;

[oracle@DB_TEST dbs]$ cd $ORACLE_HOME/dbs

[oracle@DB_TEST dbs]$ strings spfiletest.ora > inittest.ora

[oracle@DB_TEST dbs]$ mkdir -p /U01/app/oracle/oradata/test/

[oracle@DB_TEST dbs]$ mkdir -p /U01/app/oracle/fast_recovery_area/test/

[oracle@DB_TEST dbs]$ mkdir -p /U01/app/oracle/fast_recovery_area/TEST/arch

[oracle@DB_TEST dbs]$ mv spfiletest.ora  spfiletest.ora_bak

SQL> !mkdir -p /U01/app/oracle/admin/test/adump

SQL> startup nomount;

ORACLE instance started.

Total System Global Area 2.0310E+10 bytes

Fixed Size                  2262008 bytes

Variable Size            3355446280 bytes

Database Buffers         1.6911E+10 bytes

Redo Buffers               40865792 bytes

SQL> create spfile from pfile;

File created.

SQL> shutdown immediate;

ORA-01507: database not mounted

ORACLE instance shut down.

SQL> startup nomount;

ORACLE instance started.

Total System Global Area 2.0310E+10 bytes

Fixed Size                  2262008 bytes

Variable Size            3355446280 bytes

Database Buffers         1.6911E+10 bytes

Redo Buffers               40865792 bytes

3. 控制文件恢復(fù)

通過備份恢復(fù)standby控制文件，然后創(chuàng)建新的控制文件做不完全恢復(fù)

RMAN> restore standby controlfile from '/U01/tools/20170310/full_TEST_20170310_3838';

Starting restore at 2017-03-10 15:29:28

allocated channel: ORA_DISK_1

channel ORA_DISK_1: SID=96 device type=DISK

channel ORA_DISK_1: restoring control file

channel ORA_DISK_1: restore complete, elapsed time: 00:00:01

output file name=/U01/app/oracle/oradata/test/control01.ctl

output file name=/U01/app/oracle/fast_recovery_area/test/control02.ctl

Finished restore at 2017-03-10 15:29:29

RMAN> alter database mount;

database mounted

released channel: ORA_DISK_1

SQL> select open_mode from v$database;

OPEN_MODE

--------------------

MOUNTED

4.數(shù)據(jù)文件恢復(fù)

RMAN> catalog start with '/U01/tools/20170310';

searching for all files that match the pattern /U01/tools/20170310

List of Files Unknown to the Database

=====================================

File Name: /U01/tools/20170310/arch_TEST_20170310_3835

File Name: /U01/tools/20170310/full_TEST_20170310_3836

File Name: /U01/tools/20170310/full_TEST_20170310_3839

File Name: /U01/tools/20170310/full_TEST_20170310_3837

File Name: /U01/tools/20170310/full_TEST_20170310_3838

Do you really want to catalog the above files (enter YES or NO)? yes

cataloging files...

cataloging done

List of Cataloged Files

=======================

File Name: /U01/tools/20170310/arch_TEST_20170310_3835

File Name: /U01/tools/20170310/full_TEST_20170310_3836

File Name: /U01/tools/20170310/full_TEST_20170310_3839

File Name: /U01/tools/20170310/full_TEST_20170310_3837

File Name: /U01/tools/20170310/full_TEST_20170310_3838

RMAN> restore database;

恢復(fù)到指定的sequence

RMAN> recover database until sequence 5545;

Starting recover at 2017-03-10 15:34:27

using channel ORA_DISK_1

starting media recovery

Oracle Error:

ORA-01547: warning: RECOVER succeeded but OPEN RESETLOGS would get error below

ORA-01194: file 1 needs more recovery to be consistent

ORA-01110: data file 1: '/U01/app/oracle/oradata/test/system01.dbf'

media recovery complete, elapsed time: 00:00:01

Finished recover at 2017-03-10 15:34:28

5.重建控制文件

SQL> alter database backup controlfile to trace as '/U01/tools/20170310/control.trc';

SQL> shutdown immediate;

SQL> startup nomount;

[oracle@DB_TEST 20170310]$ rm -rf /U01/app/oracle/oradata/test/control01.ctl

[oracle@DB_TEST 20170310]$ rm -rf /U01/app/oracle/fast_recovery_area/test/control02.ctl

SQL> @create_controlfile.sql

SQL> select open_mode from v$database;

OPEN_MODE

--------------------

MOUNTED

重建控制文件：

STARTUP NOMOUNT

CREATE CONTROLFILE REUSE DATABASE "TEST" RESETLOGS FORCE LOGGING ARCHIVELOG

    MAXLOGFILES 40

    MAXLOGMEMBERS 3

    MAXDATAFILES 100

    MAXINSTANCES 8

    MAXLOGHISTORY 292

LOGFILE

  GROUP 1 '/U01/app/oracle/fast_recovery_area/TEST02/onlinelog/o1_mf_1_bjzdlzks_.log'  SIZE 100M BLOCKSIZE 512,

  GROUP 2 '/U01/app/oracle/fast_recovery_area/TEST02/onlinelog/o1_mf_2_bjzdlzy4_.log'  SIZE 100M BLOCKSIZE 512,

  GROUP 3 '/U01/app/oracle/fast_recovery_area/TEST02/onlinelog/o1_mf_3_bjzdm0c7_.log'  SIZE 100M BLOCKSIZE 512,

  GROUP 4 '/U01/app/oracle/fast_recovery_area/TEST02/onlinelog/o1_mf_4_bjzdm0qj_.log'  SIZE 100M BLOCKSIZE 512,

  GROUP 5 '/U01/app/oracle/fast_recovery_area/TEST02/onlinelog/o1_mf_5_bjzdm14j_.log'  SIZE 100M BLOCKSIZE 512,

  GROUP 6 '/U01/app/oracle/fast_recovery_area/TEST02/onlinelog/o1_mf_6_bjzdm1js_.log'  SIZE 100M BLOCKSIZE 512,

  GROUP 7 '/U01/app/oracle/fast_recovery_area/TEST02/onlinelog/o1_mf_7_bjzdm1wz_.log'  SIZE 100M BLOCKSIZE 512,

  GROUP 8 '/U01/app/oracle/fast_recovery_area/TEST02/onlinelog/o1_mf_8_bjzdm29z_.log'  SIZE 100M BLOCKSIZE 512,

  GROUP 9 '/U01/app/oracle/fast_recovery_area/TEST02/onlinelog/o1_mf_9_bjzdm2p8_.log'  SIZE 100M BLOCKSIZE 512,

  GROUP 10 '/U01/app/oracle/fast_recovery_area/TEST02/onlinelog/o1_mf_10_bjzdm338_.log'  SIZE 100M BLOCKSIZE 512,

  GROUP 11 '/U01/app/oracle/fast_recovery_area/TEST02/onlinelog/o1_mf_11_bjzdm3hk_.log'  SIZE 100M BLOCKSIZE 512,

  GROUP 12 '/U01/app/oracle/fast_recovery_area/TEST02/onlinelog/o1_mf_12_bjzdm3vt_.log'  SIZE 100M BLOCKSIZE 512

,

DATAFILE

  '/U01/app/oracle/oradata/test/system01.dbf',

  '/U01/app/oracle/oradata/test/sysaux01.dbf',

  '/U01/app/oracle/oradata/test/undotbs01.dbf',

  '/U01/app/oracle/oradata/test/users01.dbf',

  '/U01/app/oracle/oradata/test/test_data01.dbf',

  '/U01/app/oracle/oradata/test/test_index01.dbf',

  '/U01/app/oracle/oradata/test/test_data02.dbf',

  '/U01/app/oracle/oradata/test/test_data03.dbf',

  '/U01/app/oracle/oradata/test/test_index02.dbf',

  '/U01/app/oracle/oradata/test/test_index03.dbf'

CHARACTER SET ZHS16GBK

;

6.不完全恢復(fù)數(shù)據(jù)庫

select file#,checkpoint_change# from v$datafile;

select checkpoint_change# from v$database;

查看隱藏參數(shù)值：_allow_resetlogs_corruption （整個調(diào)整的目標是強制啟動數(shù)據(jù)庫，設(shè)置此參數(shù)之后，在數(shù)據(jù)庫Open過程中，Oracle會跳過某些一致性檢查，從而使數(shù)據(jù)庫可能跳過不一致狀態(tài)，Open打開）

col KSPPINM for a30;

col KSPPSTVL for a30;

col KSPPDESC for a30;

set line 200;

SELECT   ksppinm, ksppstvl, ksppdesc

FROM   x$ksppi x, x$ksppcv y

WHERE   x.indx = y.indx AND  ksppinm = '_allow_resetlogs_corruption';

SQL> alter system set "_allow_resetlogs_corruption"=true scope=spfile;

SQL> shutdown immediate;

SQL> startup mount;

SQL> alter database open resetlogs;

Database altered.

SQL> alter system set "_allow_resetlogs_corruption"=FALSE scope=spfile;

SQL> shutdown immediate;

SQL> startup ;

ORACLE instance started.

Total System Global Area 2.0310E+10 bytes

Fixed Size                  2262008 bytes

Variable Size            3355446280 bytes

Database Buffers         1.6911E+10 bytes

Redo Buffers               40865792 bytes

Database mounted.

Database opened.

SQL>

至此數(shù)據(jù)恢復(fù)過程完成。

7.監(jiān)聽和tnsnames.ora配置文件恢復(fù)

Listener.ora

LISTENER =

  (DESCRIPTION_LIST =

    (DESCRIPTION =

      (ADDRESS_LIST =

        (ADDRESS = (PROTOCOL = TCP)(HOST = DB_TEST)(PORT = 1521))

      )

    )

  )

SID_LIST_LISTENER =

  (SID_LIST =

    (SID_DESC =

      (GLOBAL_DBNAME = test)

      (ORACLE_HOME = /U01/app/oracle/product/11.2.0.4)

      (SID_NAME = test)

    )

    (SID_DESC =

      (GLOBAL_DBNAME = test00_DGMGRL)

      (ORACLE_HOME = /U01/app/oracle/product/11.2.0.4)

      (SID_NAME = test)

   )

  )

LISTENER1532 =

  (DESCRIPTION_LIST =

    (DESCRIPTION =

      (ADDRESS_LIST =

        (ADDRESS = (PROTOCOL = TCP)(HOST = DB_TEST)(PORT = 1532))

      )

    )

  )

SID_LIST_LISTENER1532 =

  (SID_LIST =

    (SID_DESC =

      (GLOBAL_DBNAME = test)

      (ORACLE_HOME = /U01/app/oracle/product/11.2.0.4)

      (SID_NAME = test)

    )

   (SID_DESC =

      (GLOBAL_DBNAME = test00_DGMGRL)

      (ORACLE_HOME = /U01/app/oracle/product/11.2.0.4)

      (SID_NAME = test)

    )

  )

LISTENER1522 =

  (DESCRIPTION_LIST =

    (DESCRIPTION =

      (ADDRESS_LIST =

        (ADDRESS = (PROTOCOL = TCP)(HOST = DB_TEST)(PORT = 1522))

      )

    )

  )

SID_LIST_LISTENER1522 =

  (SID_LIST =

    (SID_DESC =

      (GLOBAL_DBNAME = test)

      (ORACLE_HOME = /U01/app/oracle/product/11.2.0.4)

      (SID_NAME = test)

    )

  )

LISTENER1523 =

  (DESCRIPTION_LIST =

    (DESCRIPTION =

      (ADDRESS_LIST =

        (ADDRESS = (PROTOCOL = TCP)(HOST = DB_TEST)(PORT = 1523))

      )

    )

  )

SID_LIST_LISTENER1523 =

  (SID_LIST =

    (SID_DESC =

      (GLOBAL_DBNAME = test)

      (ORACLE_HOME = /U01/app/oracle/product/11.2.0.4)

      (SID_NAME = test)

    )

  )

LISTENER1525 =

  (DESCRIPTION_LIST =

    (DESCRIPTION =

      (ADDRESS_LIST =

        (ADDRESS = (PROTOCOL = TCP)(HOST = DB_TEST)(PORT = 1525))

      )

    )

  )

SID_LIST_LISTENER1525 =

  (SID_LIST =

    (SID_DESC =

      (GLOBAL_DBNAME = test)

      (ORACLE_HOME = /U01/app/oracle/product/11.2.0.4)

      (SID_NAME = test)

    )

  )

LISTENER1528 =

  (DESCRIPTION_LIST =

    (DESCRIPTION =

      (ADDRESS_LIST =

        (ADDRESS = (PROTOCOL = TCP)(HOST = DB_TEST)(PORT = 1528))

      )

    )

  )

SID_LIST_LISTENER1528 =

  (SID_LIST =

    (SID_DESC =

      (GLOBAL_DBNAME = test)

      (ORACLE_HOME = /U01/app/oracle/product/11.2.0.4)

      (SID_NAME = test)

    )

  )

LISTENER1526 =

  (DESCRIPTION_LIST =

    (DESCRIPTION =

      (ADDRESS_LIST =

        (ADDRESS = (PROTOCOL = TCP)(HOST = DB_TEST)(PORT = 1526))

      )

    )

  )

SID_LIST_LISTENER1526 =

  (SID_LIST =

    (SID_DESC =

      (GLOBAL_DBNAME = test)

      (ORACLE_HOME = /U01/app/oracle/product/11.2.0.4)

      (SID_NAME = test)

    )

  )

SUBSCRIBE_FOR_NODE_DOWN_EVENT_LISTENER=OFF

tnsnames.ora

# tnsnames.ora Network Configuration File: /U01/app/oracle/product/11.2.0.4/network/admin/tnsnames.ora

# Generated by Oracle configuration tools.

TEST01 =

  (DESCRIPTION =

    (ADDRESS = (PROTOCOL = TCP)(HOST = DB_TEST)(PORT = 1521))

    (CONNECT_DATA =

      (SERVER = DEDICATED)

      (SERVICE_NAME = test)

    )

  )

可通過lsnrctl start /lsnrctl start LISTENER1522/lsnrctl start LISTENER1523/lsnrctl start LISTENER1525啟動監(jiān)聽，可通過tnsping test01測試服務(wù)名連通性，可通過netstat –luntp查看啟動監(jiān)聽端口。

8. 數(shù)據(jù)驗證

SQL> alter session set current_schema=TEST;

SQL> select UPDATE_TIME   from table_name where rownum<=10 order by UPDATE_TIME  desc;

UPDATE_TIME

-------------------

2017-03-10 02:00:05

2017-03-10 01:59:48

2016-03-17 16:06:22

2016-03-17 14:43:47

2015-05-14 12:12:32

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