最简单的11g Active DataGuard(ADG)搭建配置过程（项目步
2024-04-02 02:49:40
最简单的11g Active DataGuard(ADG)搭建配置过程（项目步骤）
一、环境介绍:
我在db01和db02两台Linux虚拟机上首先分别安装了一套数据库软件，在db01主机上创建了名为woo的数据库；我们这次的实验是要搭建了一套Oracle 11g Active DataGuard；目的是为了实现数据库同步的功能，并且了解Oracle 11g DG的基本功能。
db01:192.168.1.50
db02:192.168.1.51
二、11g ADG部署：
1、pri端和sty端配置静态监听
[oracle@sty admin]$ cat listener.ora
# listener.ora Network Configuration File: /DBSoft/oracle/product/11.2.4/dbhome_1/network/admin/listener.ora
# Generated by Oracle configuration tools.SID_LIST_LISTENER =(SID_LIST =(SID_DESC =(SID_NAME = PLSExtProc)(ORACLE_HOME = /DBSoft/oracle/product/11.2.4/dbhome_1)(PROGRAM = extproc))(SID_DESC =(SID_NAME = Woo )(ORACLE_HOME = /DBSoft/oracle/product/11.2.4/dbhome_1)))[oracle@sty admin]$cat tnsname.ora
# tnsnames.ora Network Configuration File: /DBSoft/oracle/product/11.2.4/dbhome_1/network/admin/tnsnames.ora
# Generated by Oracle configuration tools.STY =(DESCRIPTION =(ADDRESS_LIST =(ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.1.51)(PORT = 1521)))(CONNECT_DATA =(SERVICE_NAME = woo)))PRI =(DESCRIPTION =(ADDRESS_LIST =(ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.1.50)(PORT = 1521)))(CONNECT_DATA =(SERVICE_NAME = woo)))2、修改primary端初始化参数文件
startup mount;
alter database archivelog;
alter database force logging;
alter database open;
alter system set log_archive_config = 'DG_CONFIG=(pri,sty)' scope=spfile;
alter system set log_archive_dest_1 = 'LOCATION=/DBBackup/Archive VALID_FOR=(ALL_LOGFILES,ALL_ROLES) DB_UNIQUE_NAME=pri' scope=spfile;
alter system set log_archive_dest_2 = 'SERVICE=sty LGWR SYNC VALID_FOR=(ONLINE_LOGFILES,PRIMARY_ROLE) DB_UNIQUE_NAME=sty' scope=spfile;
alter system set log_archive_dest_state_1 = ENABLE;
alter system set log_archive_dest_state_2 = ENABLE;
alter system set fal_server=sty scope=spfile;
alter system set fal_client=pri scope=spfile;
alter system set standby_file_management=AUTO scope=spfile;3、在primary端pfile参数文件和密码文件，并且拷贝到standby段相应位置
SQL> create pfile from spfile;File created.[oracle@db01 dbs]$ scp initwoo.ora orapwwoo db02:/DBSoft/oracle/product/11.2.4/dbhome_1/dbs
oracle@192.168.1.51's password:
initwoo.ora 100% 1260 1.2KB/s 00:00
orapwwoo 100% 1536 1.5KB/s 00:00[oracle@db01 oracle]$ scp -r admin/ diag/ fast_recovery_area/ oradata/ 192.168.1.51:$ORACLE_BASE
oracle@192.168.1.51's password:
init.ora.512201522543 100% 1778 1.7KB/s 00:01
dp.log 100% 116 0.1KB/s 00:00
........4、修改standby端的监听文件及初始化参数文件
--修改监听文件
[oracle@db02 ~]$ cd $ORACLE_HOME/network/admin
[oracle@db02 admin]$ vi listener.ora
# listener.ora Network Configuration File: /DBSoft/oracle/product/11.2.4/dbhome_1/network/admin/listener.ora
# Generated by Oracle configuration tools.LISTENER =(DESCRIPTION_LIST =(DESCRIPTION =(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1521))(ADDRESS = (PROTOCOL = TCP)(HOST = db02)(PORT = 1521))))SID_LIST_LISTENER = (SID_LIST = (SID_DESC = (SID_NAME = PLSExtProc) (ORACLE_HOME = /DBSoft/oracle/product/11.2.4/dbhome_1) (PROGRAM = extproc) ) (SID_DESC = (GLOBAL_DBNAME = woo) (ORACLE_HOME = /DBSoft/oracle/product/11.2.4/dbhome_1) (SID_NAME = woo) ) ) ADR_BASE_LISTENER = /DBSoft/oracle--启动监听
[oracle@db02 dbs]$ lsnrctl startLSNRCTL for Linux: Version 11.2.0.4.0 - Production on 17-JUN-2015 21:29:57Copyright (c) 1991, 2013, Oracle. All rights reserved.Starting /DBSoft/oracle/product/11.2.4/dbhome_1/bin/tnslsnr: please wait...TNSLSNR for Linux: Version 11.2.0.4.0 - Production
System parameter file is /DBSoft/oracle/product/11.2.4/dbhome_1/network/admin/listener.ora
Log messages written to /DBSoft/oracle/diag/tnslsnr/db02/listener/alert/log.xml
Listening on: (DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=EXTPROC1521)))
Listening on: (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=db02)(PORT=1521)))Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=IPC)(KEY=EXTPROC1521)))
STATUS of the LISTENER
------------------------
Alias LISTENER
Version TNSLSNR for Linux: Version 11.2.0.4.0 - Production
Start Date 17-JUN-2015 21:29:57
Uptime 0 days 0 hr. 0 min. 1 sec
Trace Level off
Security ON: Local OS Authentication
SNMP OFF
Listener Parameter File /DBSoft/oracle/product/11.2.4/dbhome_1/network/admin/listener.ora
Listener Log File /DBSoft/oracle/diag/tnslsnr/db02/listener/alert/log.xml
Listening Endpoints Summary...(DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=EXTPROC1521)))(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=db02)(PORT=1521)))
Services Summary...
Service "PLSExtProc" has 1 instance(s).Instance "PLSExtProc", status UNKNOWN, has 1 handler(s) for this service...
Service "woo" has 1 instance(s).Instance "woo", status UNKNOWN, has 1 handler(s) for this service...
The command completed successfully--查看监听状态
[oracle@db02 dbs]$ lsnrctl statusLSNRCTL for Linux: Version 11.2.0.4.0 - Production on 17-JUN-2015 21:30:02Copyright (c) 1991, 2013, Oracle. All rights reserved.Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=IPC)(KEY=EXTPROC1521)))
STATUS of the LISTENER
------------------------
Alias LISTENER
Version TNSLSNR for Linux: Version 11.2.0.4.0 - Production
Start Date 17-JUN-2015 21:29:57
Uptime 0 days 0 hr. 0 min. 4 sec
Trace Level off
Security ON: Local OS Authentication
SNMP OFF
Listener Parameter File /DBSoft/oracle/product/11.2.4/dbhome_1/network/admin/listener.ora
Listener Log File /DBSoft/oracle/diag/tnslsnr/db02/listener/alert/log.xml
Listening Endpoints Summary...(DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=EXTPROC1521)))(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=db02)(PORT=1521)))
Services Summary...
Service "PLSExtProc" has 1 instance(s).Instance "PLSExtProc", status UNKNOWN, has 1 handler(s) for this service...
Service "woo" has 1 instance(s).Instance "woo", status UNKNOWN, has 1 handler(s) for this service...
The command completed successfully
[oracle@db02 dbs]$ --修改参数文件
[oracle@db02 ~]$ sqlplus / as sysdbaSQL*Plus: Release 11.2.0.4.0 Production on Wed Jun 17 21:35:54 2015Copyright (c) 1982, 2013, Oracle. All rights reserved.Connected to an idle instance.SQL> startup nomount;
ORACLE instance started.Total System Global Area 1188511744 bytes
Fixed Size 1364228 bytes
Variable Size 754978556 bytes
Database Buffers 419430400 bytes
Redo Buffers 12738560 bytesSQL> create spfile from pfile='/DBSoft/oracle/product/11.2.4/dbhome_1/dbs/initwoo.ora';File created.SQL>
SQL> shutdown abort;
ORACLE instance shut down.
SQL> startup nomount;
ORACLE instance started.Total System Global Area 1188511744 bytes
Fixed Size 1364228 bytes
Variable Size 754978556 bytes
Database Buffers 419430400 bytes
Redo Buffers 12738560 bytes
SQL> alter system set db_unique_name=sty scope=spfile;
alter system set log_archive_config='DG_CONFIG=(pri,sty)' scope=spfile;
alter system set log_archive_dest_1 = 'LOCATION=/DBBackup/Archive VALID_FOR=(ALL_LOGFILES,ALL_ROLES) DB_UNIQUE_NAME=sty' scope=spfile;
alter system set log_archive_dest_2 = 'SERVICE=pri LGWR SYNC VALID_FOR=(ONLINE_LOGFILES,PRIMARY_ROLE) DB_UNIQUE_NAME=pri' scope=spfile;
alter system set fal_server=pri scope=spfile;
alter system set fal_client=sty scope=spfile;SQL> shutdown abort;
ORACLE instance shut down.
SQL> startup nomount
ORACLE instance started.Total System Global Area 1188511744 bytes
Fixed Size 1364228 bytes
Variable Size 754978556 bytes
Database Buffers 419430400 bytes
Redo Buffers 12738560 bytes
SQL>
SQL>5、在primary端通过Rman Duplicate创建备库,在db01上执行如下命令
rman target sys/oracle@pri auxiliary sys/oracle@sty nocatalog
duplicate target database for standby from active database nofilenamecheck;
[oracle@db01 ~]$ rman target sys/oracle@pri auxiliary sys/oracle@sty nocatalogRecovery Manager: Release 11.2.0.4.0 - Production on Wed Jun 17 22:33:54 2015Copyright (c) 1982, 2011, Oracle and/or its affiliates. All rights reserved.connected to target database: WOO (DBID=4221729487)
using target database control file instead of recovery catalog
connected to auxiliary database: WOO (not mounted)RMAN> RMAN> duplicate target database for standby from active database nofilenamecheck;Starting Duplicate Db at 17-JUN-15
allocated channel: ORA_AUX_DISK_1
channel ORA_AUX_DISK_1: SID=19 device type=DISKcontents of Memory Script:
{backup as copy reusetargetfile '/DBSoft/oracle/product/11.2.4/dbhome_1/dbs/orapwwoo' auxiliary format '/DBSoft/oracle/product/11.2.4/dbhome_1/dbs/orapwwoo' ;
}
executing Memory ScriptStarting backup at 17-JUN-15
allocated channel: ORA_DISK_1
channel ORA_DISK_1: SID=44 device type=DISK
Finished backup at 17-JUN-15contents of Memory Script:
{backup as copy current controlfile for standby auxiliary format '/DBSoft/oracle/oradata/woo/control01.ctl';restore clone controlfile to '/DBSoft/oracle/fast_recovery_area/woo/control02.ctl' from '/DBSoft/oracle/oradata/woo/control01.ctl';
}
executing Memory ScriptStarting backup at 17-JUN-15
using channel ORA_DISK_1
channel ORA_DISK_1: starting datafile copy
copying standby control file
output file name=/DBSoft/oracle/product/11.2.4/dbhome_1/dbs/snapcf_woo.f tag=TAG20150617T223502 RECID=1 STAMP=882657308
channel ORA_DISK_1: datafile copy complete, elapsed time: 00:00:15
Finished backup at 17-JUN-15Starting restore at 17-JUN-15
using channel ORA_AUX_DISK_1channel ORA_AUX_DISK_1: copied control file copy
Finished restore at 17-JUN-15contents of Memory Script:
{sql clone 'alter database mount standby database';
}
executing Memory Scriptsql statement: alter database mount standby databasecontents of Memory Script:
{set newname for tempfile 1 to "/DBSoft/oracle/oradata/woo/temp01.dbf";switch clone tempfile all;set newname for datafile 1 to "/DBSoft/oracle/oradata/woo/system01.dbf";set newname for datafile 2 to "/DBSoft/oracle/oradata/woo/sysaux01.dbf";set newname for datafile 3 to "/DBSoft/oracle/oradata/woo/undotbs01.dbf";set newname for datafile 4 to "/DBSoft/oracle/oradata/woo/users01.dbf";backup as copy reusedatafile 1 auxiliary format "/DBSoft/oracle/oradata/woo/system01.dbf" datafile 2 auxiliary format "/DBSoft/oracle/oradata/woo/sysaux01.dbf" datafile 3 auxiliary format "/DBSoft/oracle/oradata/woo/undotbs01.dbf" datafile 4 auxiliary format "/DBSoft/oracle/oradata/woo/users01.dbf" ;sql 'alter system archive log current';
}
executing Memory Scriptexecuting command: SET NEWNAMErenamed tempfile 1 to /DBSoft/oracle/oradata/woo/temp01.dbf in control fileexecuting command: SET NEWNAMEexecuting command: SET NEWNAMEexecuting command: SET NEWNAMEexecuting command: SET NEWNAMEStarting backup at 17-JUN-15
using channel ORA_DISK_1
channel ORA_DISK_1: starting datafile copy
input datafile file number=00001 name=/DBSoft/oracle/oradata/woo/system01.dbf
output file name=/DBSoft/oracle/oradata/woo/system01.dbf tag=TAG20150617T223532
channel ORA_DISK_1: datafile copy complete, elapsed time: 00:05:58
channel ORA_DISK_1: starting datafile copy
input datafile file number=00002 name=/DBSoft/oracle/oradata/woo/sysaux01.dbf
output file name=/DBSoft/oracle/oradata/woo/sysaux01.dbf tag=TAG20150617T223532
channel ORA_DISK_1: datafile copy complete, elapsed time: 00:05:30
channel ORA_DISK_1: starting datafile copy
input datafile file number=00003 name=/DBSoft/oracle/oradata/woo/undotbs01.dbf
output file name=/DBSoft/oracle/oradata/woo/undotbs01.dbf tag=TAG20150617T223532
channel ORA_DISK_1: datafile copy complete, elapsed time: 00:00:25
channel ORA_DISK_1: starting datafile copy
input datafile file number=00004 name=/DBSoft/oracle/oradata/woo/users01.dbf
output file name=/DBSoft/oracle/oradata/woo/users01.dbf tag=TAG20150617T223532
channel ORA_DISK_1: datafile copy complete, elapsed time: 00:00:03
Finished backup at 17-JUN-15sql statement: alter system archive log currentcontents of Memory Script:
{switch clone datafile all;
}
executing Memory Scriptdatafile 1 switched to datafile copy
input datafile copy RECID=1 STAMP=882658052 file name=/DBSoft/oracle/oradata/woo/system01.dbf
datafile 2 switched to datafile copy
input datafile copy RECID=2 STAMP=882658052 file name=/DBSoft/oracle/oradata/woo/sysaux01.dbf
datafile 3 switched to datafile copy
input datafile copy RECID=3 STAMP=882658052 file name=/DBSoft/oracle/oradata/woo/undotbs01.dbf
datafile 4 switched to datafile copy
input datafile copy RECID=4 STAMP=882658052 file name=/DBSoft/oracle/oradata/woo/users01.dbf
Finished Duplicate Db at 17-JUN-15#至此已经恢复完成
6、在primary 和standby端添加standby日志
SQL> alter database add standby logfile
group 4 ('/DBSoft/oracle/oradata/woo/styredo04.log') size 50m,
group 5 ('/DBSoft/oracle/oradata/woo/styredo05.log') size 50m,
group 6 ('/DBSoft/oracle/oradata/woo/styredo06.log') size 50m,
group 7 ('/DBSoft/oracle/oradata/woo/styredo07.log') size 50m;SQL> SELECT GROUP#,THREAD#,SEQUENCE#,ARCHIVED,STATUS FROM V$STANDBY_LOG;GROUP# THREAD# SEQUENCE# ARC STATUS
---------- ---------- ---------- --- ----------4 0 0 YES UNASSIGNED5 0 0 YES UNASSIGNED6 0 0 YES UNASSIGNED7 0 0 YES UNASSIGNED7、在standby端开启实时日志应用
SQL> recover managed standby database using current logfile disconnect from session;
Media recovery complete.
SQL> 三、开始测试ADG
8、执行日志切换测试（在pri端切换归档，在节点二上检查是否也发生了切换）
--primary执行日志切换SQL> archive log list;
Database log mode Archive Mode
Automatic archival Enabled
Archive destination /DBBackup/Archive
Oldest online log sequence 21
Next log sequence to archive 23
Current log sequence 23
SQL> alter system switch logfile;System altered.SQL> archive log list;
Database log mode Archive Mode
Automatic archival Enabled
Archive destination /DBBackup/Archive
Oldest online log sequence 22
Next log sequence to archive 23
Current log sequence 24#standby查看日志的sequence号也跟着变了
SQL> archive log list;
Database log mode Archive Mode
Automatic archival Enabled
Archive destination /DBBackup/Archive
Oldest online log sequence 22
Next log sequence to archive 0
Current log sequence 23
SQL> archive log list;
Database log mode Archive Mode
Automatic archival Enabled
Archive destination /DBBackup/Archive
Oldest online log sequence 22
Next log sequence to archive 0
Current log sequence 24
SQL> 9、查看standby启动的DG进程
SQL> select process,client_process,sequence#,status from v$managed_standby;PROCESS CLIENT_P SEQUENCE# STATUS
--------- -------- ---------- ------------
ARCH ARCH 23 CLOSING
ARCH ARCH 0 CONNECTED //归档进程
ARCH ARCH 21 CLOSING
ARCH ARCH 0 CONNECTED
RFS ARCH 0 IDLE
RFS UNKNOWN 0 IDLE
RFS LGWR 24 IDLE //归档传输进程
RFS UNKNOWN 0 IDLE
MRP0 N/A 24 APPLYING_LOG //日志应用进程9 rows selected.10、查看数据库的保护模式：
#primary 端查看，我们可以看到数据库的保护模式为最大性能
SQL> select database_role,protection_mode,protection_level,open_mode from v$database;DATABASE_ROLE PROTECTION_MODE PROTECTION_LEVEL OPEN_MODE
---------------- -------------------- -------------------- --------------------
PRIMARY MAXIMUM PERFORMANCE MAXIMUM PERFORMANCE READ WRITE#standby 端查看，也是一样的。
SQL> select database_role,protection_mode,protection_level,open_mode from v$database;DATABASE_ROLE PROTECTION_MODE PROTECTION_LEVEL OPEN_MODE
---------------- -------------------- -------------------- --------------------
PHYSICAL STANDBY MAXIMUM PERFORMANCE MAXIMUM PERFORMANCE MOUNTED11、查看DG的日志信息
SQL> select * from v$dataguard_status;FACILITY SEVERITY DEST_ID MESSAGE_NUM ERROR_CODE CAL TIMESTAMP MESSAGE
------------------------ ------------- ---------- ----------- ---------- --- --------- --------------------------------------------------------------------------------
Log Transport Services Informational 0 1 0 NO 17-JUN-15 ARC0: Archival started
Log Transport Services Informational 0 2 0 NO 17-JUN-15 ARC1: Archival started
Log Transport Services Informational 0 3 0 NO 17-JUN-15 ARC2: Archival started
Log Transport Services Informational 0 4 0 NO 17-JUN-15 ARC2: Becoming the 'no FAL' ARCH
Log Transport Services Informational 0 5 0 NO 17-JUN-15 ARC2: Becoming the 'no SRL' ARCH
Log Transport Services Informational 0 6 0 NO 17-JUN-15 ARC1: Becoming the heartbeat ARCH
Log Transport Services Control 0 7 0 YES 17-JUN-15 ARC2: Beginning to archive thread 1 sequence 15 (882580-883734)
Log Transport Services Informational 0 8 0 NO 17-JUN-15 ARC3: Archival started
Log Transport Services Control 0 9 0 YES 17-JUN-15 ARC2: Completed archiving thread 1 sequence 15 (882580-883734)
Log Transport Services Control 0 10 0 YES 17-JUN-15 LGWR: Beginning to archive log 2 thread 1 sequence 17
Log Transport Services Control 0 11 0 YES 17-JUN-15 ARC2: Beginning to archive thread 1 sequence 16 (883734-883788)
Log Transport Services Control 0 12 0 YES 17-JUN-15 ARC2: Completed archiving thread 1 sequence 16 (883734-883788)
Log Transport Services Warning 2 13 3113 NO 17-JUN-15 LGWR: Attempting destination LOG_ARCHIVE_DEST_2 network reconnect (3113)
Log Transport Services Warning 2 14 3113 NO 17-JUN-15 LGWR: Destination LOG_ARCHIVE_DEST_2 network reconnect abandoned
Log Transport Services Error 2 15 3113 YES 17-JUN-15 Error 3113 for archive log file 2 to 'sty'
Log Transport Services Error 2 16 1041 YES 17-JUN-15 LGWR: Error 1041 disconnecting from destination LOG_ARCHIVE_DEST_2 standby host 'sty'Log Transport Services Warning 2 17 3113 NO 17-JUN-15 ARC1: Attempting destination LOG_ARCHIVE_DEST_2 network reconnect (3113)
Log Transport Services Error 0 18 1034 YES 17-JUN-15 Error 1034 received logging on to the standby
Log Transport Services Error 2 19 1034 YES 17-JUN-15 ARC1: Error 1034 attaching to RFS for reconnect
Log Transport Services Error 2 20 3113 YES 17-JUN-15 PING[ARC1]: Error 3113 when pinging standby sty.
Log Transport Services Error 2 21 16058 YES 17-JUN-15 PING[ARC1]: Heartbeat failed to connect to standby 'sty'. Error is 16058.
Log Transport Services Warning 0 22 3113 NO 17-JUN-15 LGWR: Failed to archive log 2 thread 1 sequence 17 (3113)
Log Transport Services Control 0 23 0 YES 17-JUN-15 ARC2: Beginning to archive thread 1 sequence 17 (883788-884545)
Log Transport Services Control 0 24 0 YES 17-JUN-15 ARC2: Completed archiving thread 1 sequence 17 (883788-884545)
Log Transport Services Control 0 25 0 YES 17-JUN-15 ARCH: Beginning to archive thread 1 sequence 18 (884545-884856)
Log Transport Services Control 0 26 0 YES 17-JUN-15 ARCH: Completed archiving thread 1 sequence 18 (884545-884856)
Log Transport Services Control 0 27 0 YES 17-JUN-15 LGWR: Beginning to archive log 2 thread 1 sequence 20
Log Transport Services Control 0 28 0 YES 17-JUN-15 ARC2: Beginning to archive thread 1 sequence 19 (884856-884904)
Log Transport Services Control 0 29 0 YES 17-JUN-15 ARC2: Completed archiving thread 1 sequence 19 (884856-884904)
Log Transport Services Informational 2 30 0 NO 17-JUN-15 ARC0: Archive log rejected (thread 1 sequence 19) at host 'sty'
Log Transport Services Informational 0 31 0 NO 17-JUN-15 ARC4: Archival started
Log Transport Services Informational 0 32 0 NO 17-JUN-15 ARCH shutting down
Log Transport Services Informational 0 33 0 NO 17-JUN-15 ARC4: Archival stopped
Log Transport Services Control 0 34 0 YES 17-JUN-15 LGWR: Completed archiving log 2 thread 1 sequence 20
Log Transport Services Warning 1 35 0 NO 17-JUN-15 LGWR: Standby redo logfile selected for thread 1 sequence 21 for destination LOG _ARCHIVE_DEST_2
Log Transport Services Control 0 36 0 YES 17-JUN-15 LGWR: Beginning to archive log 3 thread 1 sequence 21
Log Transport Services Control 0 37 0 YES 17-JUN-15 ARC0: Beginning to archive thread 1 sequence 20 (884904-885855)
Log Transport Services Control 0 38 0 YES 17-JUN-15 ARC0: Completed archiving thread 1 sequence 20 (884904-885855)
Log Transport Services Control 0 39 0 YES 17-JUN-15 LGWR: Completed archiving log 3 thread 1 sequence 21
Log Transport Services Warning 1 40 0 NO 17-JUN-15 LGWR: Standby redo logfile selected for thread 1 sequence 22 for destination LOG _ARCHIVE_DEST_2
Log Transport Services Control 0 41 0 YES 17-JUN-15 LGWR: Beginning to archive log 1 thread 1 sequence 22
Log Transport Services Control 0 42 0 YES 17-JUN-15 ARC2: Beginning to archive thread 1 sequence 21 (885855-886131)
Log Transport Services Control 0 43 0 YES 17-JUN-15 ARC2: Completed archiving thread 1 sequence 21 (885855-886131)
Log Transport Services Control 0 44 0 YES 18-JUN-15 LGWR: Completed archiving log 1 thread 1 sequence 22
Log Transport Services Warning 1 45 0 NO 18-JUN-15 LGWR: Standby redo logfile selected for thread 1 sequence 23 for destination LOG _ARCHIVE_DEST_2
Log Transport Services Control 0 46 0 YES 18-JUN-15 LGWR: Beginning to archive log 2 thread 1 sequence 23
Log Transport Services Control 0 47 0 YES 18-JUN-15 ARC3: Beginning to archive thread 1 sequence 22 (886131-927736)
Log Transport Services Control 0 48 0 YES 18-JUN-15 ARC3: Completed archiving thread 1 sequence 22 (886131-927736)
Log Transport Services Control 0 49 0 YES 18-JUN-15 LGWR: Completed archiving log 2 thread 1 sequence 23
Log Transport Services Warning 1 50 0 NO 18-JUN-15 LGWR: Standby redo logfile selected for thread 1 sequence 24 for destination LOG _ARCHIVE_DEST_2
Log Transport Services Control 0 51 0 YES 18-JUN-15 LGWR: Beginning to archive log 3 thread 1 sequence 24
Log Transport Services Control 0 52 0 YES 18-JUN-15 ARC0: Beginning to archive thread 1 sequence 23 (927736-961263)
Log Transport Services Control 0 53 0 YES 18-JUN-15 ARC0: Completed archiving thread 1 sequence 23 (927736-961263)53 rows selected.12、Open Read Only standby数据库并且开启实时日志应用
SQL> shutdown immediate
ORA-01109: database not openDatabase dismounted.
ORACLE instance shut down.
SQL> startup
ORACLE instance started.Total System Global Area 1188511744 bytes
Fixed Size 1364228 bytes
Variable Size 754978556 bytes
Database Buffers 419430400 bytes
Redo Buffers 12738560 bytes
Database mounted.
Database opened.
SQL> select database_role,protection_mode,protection_level,open_mode from v$database;DATABASE_ROLE PROTECTION_MODE PROTECTION_LEVEL OPEN_MODE
---------------- -------------------- -------------------- --------------------
PHYSICAL STANDBY MAXIMUM PERFORMANCE MAXIMUM PERFORMANCE READ ONLYSQL> select process,client_process,sequence#,status from v$managed_standby;PROCESS CLIENT_P SEQUENCE# STATUS
--------- -------- ---------- ------------
ARCH ARCH 0 CONNECTED
ARCH ARCH 0 CONNECTED
ARCH ARCH 0 CONNECTED
ARCH ARCH 26 CLOSING
RFS ARCH 0 IDLE
RFS UNKNOWN 0 IDLE
RFS LGWR 27 IDLE7 rows selected.SQL> recover managed standby database using current logfile disconnect from session;
Media recovery complete.SQL> select process,client_process,sequence#,status from v$managed_standby;PROCESS CLIENT_P SEQUENCE# STATUS
--------- -------- ---------- ------------
ARCH ARCH 0 CONNECTED
ARCH ARCH 0 CONNECTED
ARCH ARCH 0 CONNECTED
ARCH ARCH 26 CLOSING
RFS ARCH 0 IDLE
RFS UNKNOWN 0 IDLE
RFS LGWR 27 IDLE
MRP0 N/A 27 APPLYING_LOG8 rows selected.13、解锁scott用户，添加数据，验证数据是否能同步：
#在primary端创建解锁scott用户并创建测试表，插入10000行数据
#primary 端操作如下内容
SQL> set line 200
SQL> select username,default_tablespace,account_status from dba_users where username='SCOTT';USERNAME DEFAULT_TABLESPACE ACCOUNT_STATUS
------------------------------ ------------------------------ --------------------------------
SCOTT USERS EXPIRED & LOCKEDSQL> alter user scott account unlock;User altered.SQL> conn scott/tiger;
ERROR:
ORA-28001: the password has expiredChanging password for scott
New password:
Retype new password:
Password changed
Connected.SQL> show user
USER is "SCOTT"
SQL> select * from tab;TNAME TABTYPE CLUSTERID
------------------------------ ------- ----------
BONUS TABLE
DEPT TABLE
EMP TABLE
SALGRADE TABLESQL> SQL> create table test001 (id number(10),name varchar2(20));Table created.SQL> begin2 for i in 1..10000 loop3 insert into test001 values (1,'ww');4 end loop;5 end;6 /PL/SQL procedure successfully completed.SQL> commit;Commit complete.#standby端查询scott用户是否解锁，以及test001表是否创建并且插入了10000行数据：
SQL> conn scott/tiger;
Connected.SQL> select * from tab; TNAME TABTYPE CLUSTERID
------------------------------ ------- ----------
BONUS TABLE
DEPT TABLE
EMP TABLE
SALGRADE TABLE
TEST001 TABLESQL> select count(*) from test001;COUNT(*)
----------10000SQL> #至此Oracle 11g ADG就已经配置完成了
四、ADG三种模式切换及介绍
14、#ADG有三种(PROTECTION|AVAILABILITY|PERFORMANCE)模式，具体参考:探索Oracle11gR2 之 DataGuard_03 三种保护模式
--primary操作步骤也就是命令之差：
SQL> select database_role,protection_mode,protection_level from v$database; ----当前为最大性能DATABASE_ROLE PROTECTION_MODE PROTECTION_LEVEL
---------------- -------------------- --------------------
PRIMARY MAXIMUM PERFORMANCE MAXIMUM PERFORMANCESQL>
SQL> alter database set standby database to maximize availability; ----切换为最大可用Database altered.SQL> select database_role,protection_mode,protection_level from v$database;DATABASE_ROLE PROTECTION_MODE PROTECTION_LEVEL
---------------- -------------------- --------------------
PRIMARY MAXIMUM AVAILABILITY MAXIMUM AVAILABILITYSQL> alter database set standby database to maximize protection; ----切换为最大保护 Database altered.SQL> select database_role,protection_mode,protection_level from v$database;DATABASE_ROLE PROTECTION_MODE PROTECTION_LEVEL
---------------- -------------------- --------------------
PRIMARY MAXIMUM PROTECTION MAXIMUM PROTECTIONSQL>--#standby端切换到最大保护是需要重启数据库到mount模式的:
SQL> select database_role,protection_mode,protection_level from v$database; ----当前为最大性能DATABASE_ROLE PROTECTION_MODE PROTECTION_LEVEL
---------------- -------------------- --------------------
PHYSICAL STANDBY MAXIMUM PERFORMANCE MAXIMUM PERFORMANCESQL> alter database set standby database to maximize availability; ----切换为最大可用Database altered.SQL> select database_role,protection_mode,protection_level from v$database;DATABASE_ROLE PROTECTION_MODE PROTECTION_LEVEL
---------------- -------------------- --------------------
PHYSICAL STANDBY MAXIMUM AVAILABILITY MAXIMUM AVAILABILITYSQL> alter database set standby database to maximize protection; ----切换为最大保护模式报错，需要将standby端启动到mount状态切换.
alter database set standby database to maximize protection
*
ERROR at line 1:
ORA-01126: database must be mounted in this instance and not open in any instanceSQL> shutdown immediate ----将数据库启动到mount状态
Database closed.
Database dismounted.
ORACLE instance shut down. SQL> startup mount;
ORACLE instance started.Total System Global Area 1188511744 bytes
Fixed Size 1364228 bytes
Variable Size 754978556 bytes
Database Buffers 419430400 bytes
Redo Buffers 12738560 bytes
Database mounted.SQL> alter database set standby database to maximize protection; ----再次切换为最大可用，成功。Database altered.SQL> recover managed standby database using current logfile disconnect from session;
Media recovery complete.SQL> select database_role,protection_mode,protection_level from v$database;DATABASE_ROLE PROTECTION_MODE PROTECTION_LEVEL
---------------- -------------------- --------------------
PHYSICAL STANDBY MAXIMUM PROTECTION MAXIMUM PROTECTION
五、切换测试
15、ADG做(switchover)切换测试
--primary 做如下操作SQL> alter database commit to switchover to physical standby;Database altered.SQL> shutdown immediate
ORA-01012: not logged on
SQL> conn / as sysdba
Connected to an idle instance.SQL> startup
ORACLE instance started.Total System Global Area 1188511744 bytes
Fixed Size 1364228 bytes
Variable Size 754978556 bytes
Database Buffers 419430400 bytes
Redo Buffers 12738560 bytes
Database mounted.
Database opened.SQL> alter database recover managed standby database disconnect from session;Database altered.SQL> select database_role,switchover_status from v$database;DATABASE_ROLE SWITCHOVER_STATUS
---------------- --------------------
PHYSICAL STANDBY TO PRIMARYSQL> --standby 端做如下操作SQL> alter database commit to switchover to primary;Database altered.SQL> shutdown immediate
ORA-01109: database not openDatabase dismounted.
ORACLE instance shut down.SQL> startup
ORACLE instance started.Total System Global Area 1188511744 bytes
Fixed Size 1364228 bytes
Variable Size 754978556 bytes
Database Buffers 419430400 bytes
Redo Buffers 12738560 bytes
Database mounted.
Database opened.SQL> alter system switch logfile;System altered.SQL> select database_role,switchover_status from v$database;DATABASE_ROLE SWITCHOVER_STATUS
---------------- --------------------
PRIMARY SESSIONS ACTIVESQL> 16、ADG做(fail over)切换测试
--standby 端检查状态
SQL> select open_mode from v$database;OPEN_MODE
--------------------
READ ONLY WITH APPLY--我们通过shutdown abort方式人工模拟primary奔溃，直接关闭:SQL> select open_mode from v$database;OPEN_MODE
--------------------
READ WRITESQL> shutdown abort
ORACLE instance shut down.
SQL> --在standby端执行如下操作SQL> startup mount;
ORACLE instance started.Total System Global Area 1188511744 bytes
Fixed Size 1364228 bytes
Variable Size 754978556 bytes
Database Buffers 419430400 bytes
Redo Buffers 12738560 bytes
Database mounted.SQL> alter system flush redo to 'pri';System altered.SQL> select thread#, low_sequence#, high_sequence# from v$archive_gap;no rows selected--如果没有发现明显的gap现象，说明此次的failover不会有数据损失情况。在standby端，要进行关闭apply和结束应用动作。SQL> alter database recover managed standby database cancel;
Database altered.SQL> alter database recover managed standby database finish;
Database alteredSQL> select open_mode, switchover_status from v$database;
OPEN_MODE SWITCHOVER_STATUS
-------------------- --------------------
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