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使用RAC和Data Guard构建MAA架构

發布時間：2023/12/31 42 豆豆

生活随笔收集整理的這篇文章主要介紹了使用RAC和Data Guard构建MAA架构小編覺得挺不錯的,現在分享給大家,幫大家做個參考.

在前面的單實例數據庫遷移至rac環境配置過程中，介紹了使用standby技術構建單實例主庫對應rac物理備庫的data guard模型，本節中將介紹rac主庫對應單實例物理備庫的data guard模型構建；在MAA架構中，ASM提供了存儲方面的網格，RAC提供了數據庫層面上的網格計算，data guard則著重強調在數據的備份和容災方面，更多MAA方面的知識，參考下面的鏈接!
http://www.oracle.com/technetwork/database/features/availability/maa-090890.html

一：主備庫的環境介紹
主庫：
數據庫版本：10.2.0.5
OS版本：centos4.8 64位
數據庫名：rac（兩個實例）
實例名：rac1,rac2
IP地址:192.168.1.41/24,192.168.1.42/24
db_unique_name: rac
服務名：rac.yang.com
監聽器端口：1521
存儲類型：OMF+ASM磁盤組，+DATA,+FRA

備庫：
數據庫版本：10.2.0.5
OS版本：rhel5.4 64位
數據庫名：rac （單實例）
實例名：orcl
IP地址:192.168.1.49/24
db_unique_name: orcl
服務名：orcl.yang.com
監聽器端口：1521
存儲類型：文件系統+OMF

在開始前確保主庫rac環境正常，備庫只需要安裝數據庫軟件即可，不需要建庫

[oracle@rac1 ~]$ crs_stat -t -v
Name?????????? Type?????????? R/RA?? F/FT?? Target??? State???? Host????????
----------------------------------------------------------------------
ora.rac.db???? application??? 0/0??? 0/1??? ONLINE??? ONLINE??? rac1????????
ora....c1.inst application??? 0/5??? 0/0??? ONLINE??? ONLINE??? rac1????????
ora....c2.inst application??? 0/5??? 0/0??? ONLINE??? ONLINE??? rac2????????
ora....SM1.asm application??? 0/5??? 0/0??? ONLINE??? ONLINE??? rac1????????
ora....C1.lsnr application??? 0/5??? 0/0??? ONLINE??? ONLINE??? rac1????????
ora.rac1.gsd?? application??? 0/5??? 0/0??? ONLINE??? ONLINE??? rac1????????
ora.rac1.ons?? application??? 0/3??? 0/0??? ONLINE??? ONLINE??? rac1????????
ora.rac1.vip?? application??? 0/0??? 0/0??? ONLINE??? ONLINE??? rac1????????
ora....SM2.asm application??? 0/5??? 0/0??? ONLINE??? ONLINE??? rac2????????
ora....C2.lsnr application??? 0/5??? 0/0??? ONLINE??? ONLINE??? rac2????????
ora.rac2.gsd?? application??? 0/5??? 0/0??? ONLINE??? ONLINE??? rac2????????
ora.rac2.ons?? application??? 0/3??? 0/0??? ONLINE??? ONLINE??? rac2????????
ora.rac2.vip?? application??? 0/0??? 0/0??? ONLINE??? ONLINE??? rac2?

二：配置監聽器和tnsnames.ora文件如下，rac節點2上需要同樣進行配置

[oracle@rac1 ~]$ cat $ORACLE_HOME/network/admin/listener.ora?
LISTENER_RAC1 =
? (DESCRIPTION_LIST =
??? (DESCRIPTION =
????? (ADDRESS = (PROTOCOL = TCP)(HOST = rac1-vip.yang.com)(PORT = 1521)(IP = FIRST))
????? (ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.1.41)(PORT = 1521)(IP = FIRST))
??? )
? )

SID_LIST_LISTENER_RAC1 =
? (SID_LIST =
??? (SID_DESC =
????? (ORACLE_HOME = /u01/app/oracle/product/10.2.0/db_1)
????? (GLOBAL_DBNAME=rac_DGMGRL.yang.com)
????? (SID_NAME = rac1)
??? )
? )

[oracle@rac1 ~]$ sqlplus?sys/123456@192.168.1.41:1521/rac_DGMGRL.yang.com?as sysdba
SQL*Plus: Release 10.2.0.5.0 - Production on Thu Jan 12 10:56:05 2012
Copyright (c) 1982, 2010, Oracle.? All Rights Reserved.

Connected to:
Oracle Database 10g Enterprise Edition Release 10.2.0.5.0 - 64bit Production
With the Partitioning, Real Application Clusters, OLAP, Data Mining
and Real Application Testing options
SQL>

[oracle@rac1 ~]$ cat $ORACLE_HOME/admin/tnsnames.ora?
LISTENERS_RAC =
? (ADDRESS_LIST =
??? (ADDRESS = (PROTOCOL = TCP)(HOST = rac1-vip.yang.com)(PORT = 1521))
??? (ADDRESS = (PROTOCOL = TCP)(HOST = rac2-vip.yang.com)(PORT = 1521))
? )

LISTENER_RAC1 =
? (ADDRESS_LIST =
??? (ADDRESS = (PROTOCOL = TCP)(HOST = rac1-vip.yang.com)(PORT = 1521))
? )

LISTENER_RAC2 =
? (ADDRESS_LIST =
??? (ADDRESS = (PROTOCOL = TCP)(HOST = rac1-vip.yang.com)(PORT = 1521))
? )

RAC =
? (DESCRIPTION =
??? (ADDRESS = (PROTOCOL = TCP)(HOST = rac1-vip.yang.com)(PORT = 1521))
??? (ADDRESS = (PROTOCOL = TCP)(HOST = rac2-vip.yang.com)(PORT = 1521))
??? (LOAD_BALANCE = yes)
??? (CONNECT_DATA =
????? (SERVER = DEDICATED)
????? (SERVICE_NAME = rac.yang.com)
??? )
? )

RAC1 =
? (DESCRIPTION =
??? (ADDRESS = (PROTOCOL = TCP)(HOST = rac1-vip.yang.com)(PORT = 1521))
??? (CONNECT_DATA =
????? (SERVER = DEDICATED)
????? (SERVICE_NAME = rac.yang.com)
????? (INSTANCE_NAME = rac1)
??? )
? )

RAC2 =
? (DESCRIPTION =
??? (ADDRESS = (PROTOCOL = TCP)(HOST = rac2-vip.yang.com)(PORT = 1521))
??? (CONNECT_DATA =
????? (SERVER = DEDICATED)
????? (SERVICE_NAME = rac.yang.com)
????? (INSTANCE_NAME = rac2)
??? )
? )

ORCL =
? (DESCRIPTION =
??? (ADDRESS = (PROTOCOL = TCP)(HOST = server49.yang.com)(PORT = 1521))
??? (CONNECT_DATA =
????? (SERVER = DEDICATED)
????? (SERVICE_NAME = orcl.yang.com)
????? (INSTANCE_NAME = orcl)
??? )
? )

三：備庫的靜聽器配置和tnsnames.ora文件如下

[oracle@server49 ~]$ cat /u01/app/oracle/product/10.2.0/db1/network/admin/listener.ora?
LISTENER_ORCL =
? (DESCRIPTION_LIST =
??? (DESCRIPTION =
????? (ADDRESS = (PROTOCOL = TCP)(HOST = server49.yang.com)(PORT = 1521)
??? )
? )

SID_LIST_LISTENER_ORCL =
? (SID_LIST =
??? (SID_DESC =
????? (ORACLE_HOME = /u01/app/oracle/product/10.2.0/db_1)
????? (GLOBAL_DBNAME=orcl_DGMGRL.yang.com)
????? (SID_NAME = orcl)
??? )
? )

[oracle@server49 ~]$ cat /u01/app/oracle/product/10.2.0/db1/network/admin/tnsnames.ora?
LISTENER_ORCL =
? (ADDRESS_LIST =
??? (ADDRESS = (PROTOCOL = TCP)(HOST = server49.yang.com)(PORT = 1521))
? )

四：在主庫上修改初始化參數文件如下

[oracle@rac1 ~]$ sqlplus /nolog
SQL*Plus: Release 10.2.0.5.0 - Production on Thu Jan 12 11:14:29 2012
Copyright (c) 1982, 2010, Oracle.? All Rights Reserved.
SQL> conn /as sysdba
Connected.

SQL> alter database force logging;
Database altered.

SQL> alter system set log_file_name_convert='+FLASH/rac','/u01/app/oracle/flash_recover_area/orcl','+DATA/rac','/u01/app/oracle/oradata/orcl' scope=spfile;
System altered.

SQL> alter system set db_file_name_convert='+DATA/rac','/u01/app/oracle/oradata/orcl' scope=spfile；
System altered.

SQL> alter system set dg_broker_config_file1='+DATA/rac/dgbroker/dg_config_file1.dat';
System altered.

SQL> alter system set dg_broker_config_file2='+FRA/rac/dgbroker/dg_config_file2.dat';
System altered.

SQL> alter system set fal_client='rac1' sid='rac1';
System altered.

SQL> alter system set fal_client='rac2' sid='rac2';
System altered.

SQL> alter system set fal_server='orcl';
System altered.

SQL> alter system set local_listener='LISTENER_RAC1' sid='rac1';
System altered.

SQL> alter system set local_listener='LISTENER_RAC2' sid='rac2';
System altered.

SQL> alter system set log_archive_config='DG_CONFIG=(rac,orcl)';
System altered.

SQL> alter system set log_archive_dest_1='LOCATION=USE_DB_RECOVERY_FILE_DEST VALID_FOR=(ONLINE_LOGFILES,ALL_ROLES) DB_UNIQUE_NAME=rac';
System altered.

SQL> alter system set log_archive_dest_state_2='defer';
System altered.

SQL> alter system set log_archive_dest_2='SERVICE=orcl LGWR ASYNC VALID_FOR=(ONLINE_LOGFILES,PRIMARY_ROLE) DB_UNIQUE_NAME=orcl';
System altered.

SQL> alter system set log_archive_dest_3='LOCATION=+FRA/rac/standbylog/ VALID_FOR=(STANDBY_LOGFILES,STANDBY_ROLE) DB_UNIQUE_NAME=rac';
System altered.

SQL> alter system set log_archive_dest_state_1=enable;
System altered.

SQL> alter system set log_archive_dest_state_3=enable;
System altered.

SQL> alter system set log_archive_max_processes=5;
System altered.

SQL> alter system set remote_listener='LISTENERS_RAC';
System altered.

SQL> alter system set remote_login_passwordfile='EXCLUSIVE' scope=spfile;
System altered.

SQL> alter system set standby_archive_dest='+FRA/rac/standbylog';
System altered.

SQL> alter system set standby_file_management='auto';
System altered.

五：由spfile生成pfile,同時增加相應的standby日志組

SQL> create pfile='/home/oracle/backup/initrac.ora' from spfile;
File created.

SQL> select thread#,group# from v$log;

?? THREAD#???? GROUP#
---------- ----------
???????? 1????????? 1
???????? 1????????? 2
???????? 2????????? 3
???????? 2????????? 4

SQL> alter database add standby logfile thread 1 group 11 size 50M,group 12 size 50M,group 13 size 50M;
Database altered.

SQL> alter database add standby logfile thread 2 group 14 size 50M,group 15 size 50M,group 16 size 50M;
Database altered.

SQL> select thread#,group# from v$standby_log;

?? THREAD#???? GROUP#
---------- ----------
???????? 1???????? 11
???????? 1???????? 12
???????? 1???????? 13
???????? 2???????? 14
???????? 2???????? 15
???????? 2???????? 16

六：利用rman備份主庫文件，并復制到備庫上

[oracle@rac1 ~]$ rman target /
Recovery Manager: Release 10.2.0.5.0 - Production on Thu Jan 12 11:53:51 2012
Copyright (c) 1982, 2007, Oracle.? All rights reserved.
connected to target database: RAC (DBID=2360349352)

RMAN> run {
2> allocate channel c1 device type disk;
3> allocate channel c2 device type disk;
4> backup incremental level 0?
5> format '/home/oracle/backup/db_%U'
6> tag 'bak_for_maa' database
7> plus archivelog;
8> release channel c1;
9> release channel c2;
10> }

RMAN> backup current controlfile for standby format '/home/oracle/backup/control01.ctl';
[oracle@rac1 ~]$ scp -rp backup/ server49.yang.com:/home/oracle/?

七：在備庫上進行duplicate操作，需要創建相關的目錄，準備密碼文件，以及修改參數文件等

[oracle@server49 orcl]$ env |grep ORA
ORACLE_SID=orcl
ORACLE_BASE=/u01/app/oracle
ORACLE_HOME=/u01/app/oracle/product/10.2.0/db1

[oracle@server49 orcl]$ pwd
/u01/app/oracle/admin/orcl
[oracle@server49 orcl]$ ls
adump? bdump? cdump? dpdump? pfile? udump

[oracle@server49 ~]$ orapwd file=$ORACLE_HOME/dbs/orapworcl password=123456
[oracle@server49 ~]$ cat /home/oracle/backup/initrac.ora?
*.__db_cache_size=100663296
*.__java_pool_size=4194304
*.__large_pool_size=4194304
*.__shared_pool_size=96468992
*.__streams_pool_size=0
*.audit_file_dest='/u01/app/oracle/admin/orcl/adump'
*.background_dump_dest='/u01/app/oracle/admin/orcl/bdump'
*.compatible='10.2.0.5.0'
*.control_files='/u01/app/oracle/oradata/ORCL/controlfile/control01.ctl'
*.core_dump_dest='/u01/app/oracle/admin/orcl/cdump'
*.db_block_size=8192
*.db_create_file_dest='/u01/app/oracle/oradata'
*.db_create_online_log_dest_1='/u01/app/oracle/flash_recovery_area/'
*.db_domain='yang.com'
*.db_file_multiblock_read_count=16
*.db_file_name_convert='+DATA/rac','/u01/app/oracle/oradata/ORCL'
*.db_name='rac'
*.db_recovery_file_dest='/u01/app/oracle/flash_recovery_area/'
*.db_recovery_file_dest_size=21474836480
*.dg_broker_config_file1='/u01/app/oracle/product/10.2.0/db1/dbs/dg_config_file1.dat'
*.dg_broker_config_file2='/u01/app/oracle/product/10.2.0/db1/dbs/dg_config_file2.dat'
*.dispatchers='(PROTOCOL=TCP) (SERVICE=racXDB)'
*.fal_client='orcl'
*.fal_server='rac'
*.job_queue_processes=10
*.local_listener='LISTENER_ORCL'
*.log_archive_config='DG_CONFIG=(rac,orcl)'
*.log_archive_dest_1='LOCATION=USE_DB_RECOVERY_FILE_DEST VALID_FOR=(ONLINE_LOGFILES,ALL_ROLES) DB_UNIQUE_NAME=orcl'
*.log_archive_dest_2='SERVICE=rac LGWR ASYNC VALID_FOR=(ONLINE_LOGFILES,PRIMARY_ROLE) DB_UNIQUE_NAME=rac'
*.log_archive_dest_3='LOCATION=/u01/app/oracle/flash_recovery_area/ORCL/standbylog/ VALID_FOR=(STANDBY_LOGFILES,STANDBY_ROLE) DB_UNIQUE_NAME=orcl'
*.log_archive_dest_state_1='ENABLE'
*.log_archive_dest_state_2='defer'
*.log_archive_dest_state_3='ENABLE'
*.log_archive_format='%t_%s_%r.dbf'
*.log_archive_max_processes=5
*.log_file_name_convert='+FLASH/rac','/u01/app/oracle/flash_recovery_area/ORCL','+DATA/rac','/u01/app/oracle/oradata/ORCL'
*.open_cursors=300
*.pga_aggregate_target=71303168
*.processes=150
*.remote_login_passwordfile='EXCLUSIVE'
*.sga_target=213909504
*.standby_archive_dest='/u01/app/oracle/flash_recovery_area/ORCL/standbylog/'
*.standby_file_management='auto'
*.undo_management='AUTO'
*.undo_tablespace='UNDOTBS1'
*.user_dump_dest='/u01/app/oracle/admin/orcl/udump'

[oracle@server49 ~]$ sqlplus /nolog
SQL*Plus: Release 10.2.0.5.0 - Production on Thu Jan 12 13:49:40 2012
Copyright (c) 1982, 2010, Oracle.? All Rights Reserved.

SQL> conn /as sysdba
Connected to an idle instance.
SQL> startup nomount pfile='/home/oracle/backup/initrac.ora';
ORACLE instance started.

Total System Global Area? 213909504 bytes
Fixed Size????????????????? 2095152 bytes
Variable Size???????????? 104859600 bytes
Database Buffers????????? 100663296 bytes
Redo Buffers??????????????? 6291456 bytes

SQL> create spfile from pfile='/home/oracle/backup/initrac.ora';
File created.

[oracle@server49 ~]$ rman target?sys/123456@rac?auxiliary /
Recovery Manager: Release 10.2.0.5.0 - Production on Thu Jan 12 13:59:30 2012
Copyright (c) 1982, 2007, Oracle.? All rights reserved.

connected to target database: RAC (DBID=2360349352)
connected to auxiliary database: RAC (not mounted)

RMAN> duplicate target database for standby;
[oracle@server49 ~]$ rman target /
Recovery Manager: Release 10.2.0.5.0 - Production on Thu Jan 12 14:49:38 2012
Copyright (c) 1982, 2007, Oracle.? All rights reserved.
connected to target database: RAC (DBID=2360349352, not open)?

RMAN> report schema;

using target database control file instead of recovery catalog
RMAN-06139: WARNING: control file is not current for REPORT SCHEMA
Report of database schema

List of Permanent Datafiles
===========================
File Size(MB) Tablespace?????????? RB segs Datafile Name
---- -------- -------------------- ------- ------------------------
1??? 440????? SYSTEM?????????????? ***???? /u01/app/oracle/oradata/ORCL/datafile/system.264.772367249
2??? 35?????? UNDOTBS1???????????? ***???? /u01/app/oracle/oradata/ORCL/datafile/undotbs1.258.772367251
3??? 250????? SYSAUX?????????????? ***???? /u01/app/oracle/oradata/ORCL/datafile/sysaux.265.772367249
4??? 5??????? USERS??????????????? ***???? /u01/app/oracle/oradata/ORCL/datafile/users.309.772367251
5??? 100????? EXAMPLE????????????? ***???? /u01/app/oracle/oradata/ORCL/datafile/example.289.772367357
6??? 25?????? UNDOTBS2???????????? ***???? /u01/app/oracle/oradata/ORCL/datafile/undotbs2.259.772367523List of Temporary Files
=======================
File Size(MB) Tablespace?????????? Maxsize(MB) Tempfile Name
---- -------- -------------------- ----------- --------------------
1??? 0??????? TEMP???????????????? 32767?????? /u01/app/oracle/oradata/ORCL/tempfile/temp.285.772367353

八：在備庫上還原日志文件，修改onlinelog和standby log的路徑

SQL> show parameter name;

NAME???????????????????????????????? TYPE??????? VALUE
------------------------------------ ----------- ------------------------------
db_file_name_convert???????????????? string????? +DATA/rac, /u01/app/oracle/ora
???????????????????????????????????????????????? data/ORCL
db_name????????????????????????????? string????? rac
db_unique_name?????????????????????? string????? orcl
global_names???????????????????????? boolean???? FALSE
instance_name??????????????????????? string????? orcl
lock_name_space????????????????????? string
log_file_name_convert??????????????? string????? +FLASH/rac, /u01/app/oracle/fl
???????????????????????????????????????????????? ash_recovery_area/ORCL, +DATA/
???????????????????????????????????????????????? rac, /u01/app/oracle/oradata/O
???????????????????????????????????????????????? RCL

NAME???????????????????????????????? TYPE??????? VALUE
------------------------------------ ----------- ------------------------------
service_names??????????????????????? string????? orcl.yang.com

SQL> archive log list;
Database log mode????????????? Archive Mode
Automatic archival???????????? Enabled
Archive destination??????????? USE_DB_RECOVERY_FILE_DEST
Oldest online log sequence???? 9
Next log sequence to archive?? 10
Current log sequence?????????? 10

RMAN> restore archivelog all;

[oracle@server49 ~]$ ls /u01/app/oracle/flash_recovery_area/ORCL/archivelog/2012_01_12/
o1_mf_1_3_7jx11wrr_.arc? o1_mf_1_8_7jx11s7b_.arc? o1_mf_2_4_7jx123sx_.arc
o1_mf_1_4_7jx11scv_.arc? o1_mf_1_9_7jx12d26_.arc? o1_mf_2_5_7jx123q4_.arc
o1_mf_1_5_7jx11rpy_.arc? o1_mf_2_1_7jx11rds_.arc? o1_mf_2_6_7jx124xf_.arc
o1_mf_1_6_7jx11rvt_.arc? o1_mf_2_2_7jx124gw_.arc? o1_mf_2_7_7jx12bz0_.arc
o1_mf_1_7_7jx11s0q_.arc? o1_mf_2_3_7jx12419_.arc

SQL> select group#,member from v$logfile;

??? GROUP# MEMBER
---------- --------------------------------------------------
???????? 2 +FRA/rac/onlinelog/group_2.306.772367347
???????? 1 +FRA/rac/onlinelog/group_1.307.772367339
???????? 3 +FRA/rac/onlinelog/group_3.305.772367577
???????? 4 +FRA/rac/onlinelog/group_4.304.772367577
??????? 11 +FRA/rac/onlinelog/group_11.303.772371907
??????? 12 +FRA/rac/onlinelog/group_12.302.772371907
??????? 13 +FRA/rac/onlinelog/group_13.301.772371915
??????? 14 +FRA/rac/onlinelog/group_14.300.772371979
??????? 15 +FRA/rac/onlinelog/group_15.299.772371979
??????? 16 +FRA/rac/onlinelog/group_16.298.772371981

SQL> alter system set standby_file_management=manual;
System altered.

SQL> alter database rename file '+FRA/rac/onlinelog/group_2.306.772367347' to '/u01/app/oracle/oradata/ORCL/onlinelog/group_2.306.772367347';
Database altered.

SQL> select member from v$logfile;

MEMBER
--------------------------------------------------------------------------------
/u01/app/oracle/oradata/ORCL/onlinelog/group_2.306.772367347
/u01/app/oracle/oradata/ORCL/onlinelog/group_1.307.772367339
/u01/app/oracle/oradata/ORCL/onlinelog/group_3.305.772367577
/u01/app/oracle/oradata/ORCL/onlinelog/group_4.304.772367577
/u01/app/oracle/oradata/ORCL/onlinelog/group_11.303.772371907
/u01/app/oracle/oradata/ORCL/onlinelog/group_12.302.772371907
/u01/app/oracle/oradata/ORCL/onlinelog/group_13.301.772371915
/u01/app/oracle/oradata/ORCL/onlinelog/group_14.300.772371979
/u01/app/oracle/oradata/ORCL/onlinelog/group_15.299.772371979
/u01/app/oracle/oradata/ORCL/onlinelog/group_16.298.772371981

SQL> alter system set standby_file_management=auto;
System altered.

九：將備庫置于實時應用歸檔日志狀態并觀察日志輸出

SQL> select name,database_role from v$database;

NAME????? DATABASE_ROLE
--------- ----------------
RAC?????? PHYSICAL STANDBY

SQL> alter database recover managed standby database using current logfile disconnect from session;
Database altered.

[oracle@server49 ~]$ tail -f /u01/app/oracle/admin/orcl/bdump/alert_orcl.log?
Clearing online redo logfile 4 complete
Media Recovery Log /u01/app/oracle/flash_recovery_area/ORCL/archivelog/2012_01_12/o1_mf_1_9_7jx12d26_.arc
Media Recovery Log /u01/app/oracle/flash_recovery_area/ORCL/archivelog/2012_01_12/o1_mf_2_7_7jx12bz0_.arc
Thu Jan 12 15:17:17 CST 2012
Media Recovery Waiting for thread 1 sequence 10

SQL> select first_time,next_time,sequence#,applied,thread# from v$archived_log order by 5,3;

FIRST_TIME????????? NEXT_TIME??????????? SEQUENCE# APP??? THREAD#
------------------- ------------------- ---------- --- ----------
2012-01-12:10:32:16 2012-01-12:11:51:23????????? 3 NO?????????? 1
2012-01-12:10:32:16 2012-01-12:11:51:23????????? 3 NO?????????? 1
2012-01-12:11:51:23 2012-01-12:11:56:14????????? 4 NO?????????? 1
2012-01-12:11:51:23 2012-01-12:11:56:14????????? 4 NO?????????? 1
2012-01-12:11:56:14 2012-01-12:12:03:36????????? 5 NO?????????? 1
2012-01-12:11:56:14 2012-01-12:12:03:36????????? 5 NO?????????? 1
2012-01-12:12:03:36 2012-01-12:12:58:27????????? 6 NO?????????? 1
2012-01-12:12:03:36 2012-01-12:12:58:27????????? 6 NO?????????? 1
2012-01-12:12:58:27 2012-01-12:13:06:02????????? 7 NO?????????? 1
2012-01-12:12:58:27 2012-01-12:13:06:02????????? 7 NO?????????? 1
2012-01-12:13:06:02 2012-01-12:13:08:02????????? 8 YES????????? 1

FIRST_TIME????????? NEXT_TIME??????????? SEQUENCE# APP??? THREAD#
------------------- ------------------- ---------- --- ----------
2012-01-12:13:06:02 2012-01-12:13:08:02????????? 8 NO?????????? 1
2012-01-12:13:08:02 2012-01-12:13:14:12????????? 9 NO?????????? 1
2012-01-12:13:08:02 2012-01-12:13:14:12????????? 9 YES????????? 1
2012-01-12:10:32:58 2012-01-12:11:51:25????????? 1 NO?????????? 2
2012-01-12:10:32:58 2012-01-12:11:51:25????????? 1 NO?????????? 2
2012-01-12:11:51:25 2012-01-12:11:56:11????????? 2 NO?????????? 2
2012-01-12:11:51:25 2012-01-12:11:56:11????????? 2 NO?????????? 2
2012-01-12:11:56:11 2012-01-12:12:03:36????????? 3 NO?????????? 2
2012-01-12:11:56:11 2012-01-12:12:03:36????????? 3 NO?????????? 2
2012-01-12:12:03:36 2012-01-12:12:58:28????????? 4 NO?????????? 2
2012-01-12:12:03:36 2012-01-12:12:58:28????????? 4 NO?????????? 2

FIRST_TIME????????? NEXT_TIME??????????? SEQUENCE# APP??? THREAD#
------------------- ------------------- ---------- --- ----------
2012-01-12:12:58:28 2012-01-12:13:06:02????????? 5 NO?????????? 2
2012-01-12:12:58:28 2012-01-12:13:06:02????????? 5 NO?????????? 2
2012-01-12:13:06:02 2012-01-12:13:08:06????????? 6 NO?????????? 2
2012-01-12:13:06:02 2012-01-12:13:08:06????????? 6 NO?????????? 2
2012-01-12:13:08:06 2012-01-12:13:14:13????????? 7 NO?????????? 2
2012-01-12:13:08:06 2012-01-12:13:14:13????????? 7 NO?????????? 2

十：測試，主庫上新建表空間，建表后切換日志，備庫置于只讀模式驗證數據一致性

Connected to:
Oracle Database 10g Enterprise Edition Release 10.2.0.5.0 - 64bit Production
With the Partitioning, Real Application Clusters, OLAP, Data Mining
and Real Application Testing options

SQL> create tablespace maa datafile size 100M;
Tablespace created.

SQL> create table hr.maa_test tablespace maa as select * from dba_source;
Table created.

SQL> alter system archive log current;
System altered.

SQL> alter system set log_archive_dest_state_2=enable;
System altered.

SQL> alter system archive log current;
System altered.

SQL> select first_time,next_time,sequence#,applied,thread# from v$archived_log? where sequence# >10 order by 5,3;

FIRST_TIME????????? NEXT_TIME??????????? SEQUENCE# APP??? THREAD#
------------------- ------------------- ---------- --- ----------
2012-01-12:14:07:46 2012-01-12:14:07:46???????? 11 YES????????? 1
2012-01-12:14:17:59 2012-01-12:14:18:04???????? 12 YES????????? 1
2012-01-12:14:18:04 2012-01-12:15:23:28???????? 13 YES????????? 1
2012-01-12:15:23:28 2012-01-12:15:24:14???????? 14 YES????????? 1
2012-01-12:15:24:14 2012-01-12:15:25:30???????? 15 YES????????? 1
2012-01-12:14:25:54 2012-01-12:15:24:13???????? 11 YES????????? 2
2012-01-12:15:24:13 2012-01-12:15:25:36???????? 12 YES????????? 2

節點1：
SQL> archive log list;
Database log mode????????????? Archive Mode
Automatic archival???????????? Enabled
Archive destination??????????? USE_DB_RECOVERY_FILE_DEST
Oldest online log sequence???? 15
Next log sequence to archive?? 16
Current log sequence?????????? 16

節點2：
SQL> conn /as sysdba
Connected.
SQL> archive log list;
Database log mode????????????? Archive Mode
Automatic archival???????????? Enabled
Archive destination??????????? USE_DB_RECOVERY_FILE_DEST
Oldest online log sequence???? 12
Next log sequence to archive?? 13
Current log sequence?????????? 13.

SQL> alter database recover managed standby database cancel;
Database altered.

SQL> alter database open read only;
Database altered.

SQL> select tablespace_name from dba_tablespaces;

TABLESPACE_NAME
------------------------------
SYSTEM
UNDOTBS1
SYSAUX
TEMP
USERS
UNDOTBS2
EXAMPLE
MAA

SQL> select count(*) from hr.maa_test;

? COUNT(*)
----------
??? 295528

SQL> alter database recover managed standby database using current logfile disconnect from session;
Database altered.

SQL> select * from v$archive_gap;
no rows selected

SQL> select process, client_process, sequence#, status from v$managed_standby;

PROCESS?? CLIENT_P? SEQUENCE# STATUS
--------- -------- ---------- ------------
ARCH????? ARCH???????????? 17 CLOSING
ARCH????? ARCH???????????? 14 CLOSING
ARCH????? ARCH????????????? 0 CONNECTED
ARCH????? ARCH????????????? 0 CONNECTED
ARCH????? ARCH????????????? 0 CONNECTED
RFS?????? UNKNOWN?????????? 0 IDLE
RFS?????? UNKNOWN?????????? 0 IDLE
RFS?????? UNKNOWN?????????? 0 IDLE
RFS?????? UNKNOWN?????????? 0 IDLE
RFS?????? UNKNOWN?????????? 0 IDLE
RFS?????? UNKNOWN?????????? 0 IDLE

PROCESS?? CLIENT_P? SEQUENCE# STATUS
--------- -------- ---------- ------------
RFS?????? UNKNOWN?????????? 0 IDLE
RFS?????? UNKNOWN?????????? 0 IDLE
MRP0????? N/A????????????? 15 APPLYING_LOG
RFS?????? LGWR???????????? 18 IDLE
RFS?????? LGWR???????????? 15 IDLE

SQL> select thread#, max (sequence#) from v$log_history group by thread#;

?? THREAD# MAX(SEQUENCE#)
---------- --------------
???????? 1???????????? 17
???????? 2???????????? 14

備庫上相關的文件如下：
[oracle@server49 ~]$ ls /u01/app/oracle/flash_recovery_area/ORCL/standbylog/
1_10_772367339.dbf? 1_14_772367339.dbf? 2_10_772367339.dbf? 2_14_772367339.dbf
1_11_772367339.dbf? 1_15_772367339.dbf? 2_11_772367339.dbf? 2_8_772367339.dbf
1_12_772367339.dbf? 1_16_772367339.dbf? 2_12_772367339.dbf? 2_9_772367339.dbf
1_13_772367339.dbf? 1_17_772367339.dbf? 2_13_772367339.dbf
[oracle@server49 ~]$ ls /u01/app/oracle/flash_recovery_area/ORCL/archivelog/2012_01_12/
o1_mf_1_3_7jxs4g18_.arc? o1_mf_1_8_7jxs4cxn_.arc? o1_mf_2_4_7jxs4k77_.arc
o1_mf_1_4_7jxs4d5z_.arc? o1_mf_1_9_7jxs4of6_.arc? o1_mf_2_5_7jxs4k43_.arc
o1_mf_1_5_7jxs4c3h_.arc? o1_mf_2_1_7jxs4bpl_.arc? o1_mf_2_6_7jxs4l0r_.arc
o1_mf_1_6_7jxs4cnh_.arc? o1_mf_2_2_7jxs4km1_.arc? o1_mf_2_7_7jxs4nbr_.arc
o1_mf_1_7_7jxs4csf_.arc? o1_mf_2_3_7jxs4kds_.arc

[oracle@server49 ~]$ ls /u01/app/oracle/oradata/ORCL/controlfile/
control01.ctl
[oracle@server49 ~]$ ls /u01/app/oracle/oradata/ORCL/datafile/
example.289.772367357??? sysaux.265.772367249? undotbs1.258.772367251? users.309.772367251
o1_mf_maa_7jxt3t7d_.dbf? system.264.772367249? undotbs2.259.772367523
[oracle@server49 ~]$ ls /u01/app/oracle/oradata/ORCL/onlinelog/
group_11.303.772371907? group_14.300.772371979? group_3.305.772367577
group_12.302.772371907? group_15.299.772371979? group_4.304.772367577
group_1.307.772367339?? group_16.298.772371981
group_13.301.772371915? group_2.306.772367347
[oracle@server49 ~]$ ls /u01/app/oracle/oradata/ORCL/tempfile/
temp.285.772367353

參考文檔：http://www.oracledba.org/10g/dr/10gR2_dataguard_RAC_to_RAC.html，感謝作者分享！

本文轉自斬月博客51CTO博客，原文鏈接http://blog.51cto.com/ylw6006/762927如需轉載請自行聯系原作者

ylw6006

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