This article documents the steps ADG build, install and configure oracle 11g R2 in a virtual machine in CentOS (the installation steps in my another blog ), and then copy the virtual machine, modify the new virtual machine's hostname and ip configuration , this time the main library and library equipment is exactly the same, to reduce the difficulty of adg disposed behind and below the ADG began to build.
1: On the main library to check whether the main library database mandatory logging mode is enabled and enable archiving, if not, to force open the log mode is enabled and log archiving.
SQL> select name, log_mode, force_logging from v$database;
NAME LOG_MODE FORCE_
------------------ ------------------------ ------
ORCL NOARCHIVELOG NO
Forced log mode is not enabled, you need to enable, in addition, you can see the log mode is non-archive mode, this should also be amended to archive mode.
Enable Forced Log:
SQL> alter database force logging;
Database altered.
Open archive mode (to restart instance to mount state):
SQL> shutdown immediate
Database closed.
Database dismounted.
ORACLE instance shut down.
SQL> startup mount;
ORACLE instance started.
Total System Global Area 830930944 bytes
Fixed Size 2217912 bytes
Variable Size 641730632 bytes
Database Buffers 180355072 bytes
Redo Buffers 6627328 bytes
Database mounted.
SQL> alter database archivelog;
Database altered.
SQL> alter database open;
Database altered.
Check the archive has been opened:
SQL> archive log list;
Database log mode Archive Mode
Automatic archival Enabled
Archive destination USE_DB_RECOVERY_FILE_DEST
Oldest online log sequence 87
Next log sequence to archive 89
Current log sequence 89
2: In the main library to create a password file, copy the password file to the backup machine.
[oracle@apollo ~]$ cd $ORACLE_HOME/dbs
[oracle@apollo dbs]$ ll
total 24
-rw-rw---- 1 oracle oinstall 1544 Mar 3 2019 hc_DBUA0.dat
-rw-rw---- 1 oracle oinstall 1544 Feb 27 20:12 hc_orcl.dat
-rw-r--r-- 1 oracle oinstall 2851 May 15 2009 init.ora
-rw-r----- 1 oracle oinstall 24 Mar 3 2019 lkORCL
-rw-r----- 1 oracle oinstall 1536 Jan 11 16:17 orapworcl
-rw-r----- 1 oracle oinstall 2560 Feb 27 20:12 spfileorcl.ora
We can see already have password files orapworcl, can then forced to re-generate the next:
[oracle@apollo dbs]$ orapwd file=orapworcl password=123456 force=y
force = y represents some force overwrite the password file, the password file the next SCP to the backup copy machines:
[oracle@apollo dbs]$ scp orapworcl [email protected]:$ORACLE_HOME/dbs/orapworcl
[email protected]'s password:
orapworcl 100% 1536 2.3MB/s 00:00
3: The main library is created on standby redolog log group.
Group Number = standby redo log log (log group number for each instance +1) * Example Number
The number of inquiries about the current instance log group:
SQL> select thread#,group#,bytes/1024/1024 from v$log;
THREAD# GROUP# BYTES/1024/1024
---------- ---------- ---------------
1 1 50
1 2 50
1 3 50
Examples of the current log group number is 3, it is necessary to create at least a (3 + 1) * 1 = 4 groups standby redolog, both the size of 50M.
View the current log group and its members:
SQL> col member for a50
SQL> select group#,member from v$logfile;
GROUP# MEMBER
---------- --------------------------------------------------
3 /u01/app/oracle/oradata/orcl/redo03.log
2 /u01/app/oracle/oradata/orcl/redo02.log
1 /u01/app/oracle/oradata/orcl/redo01.log
New four standby redolog log groups, numbered from 4:
SQL> alter database add standby logfile group 4 '/u01/app/oracle/oradata/orcl/standby_redo04.log' size 50M;
Database altered.
SQL> alter database add standby logfile group 5 '/u01/app/oracle/oradata/orcl/standby_redo05.log' size 50M;
Database altered.
SQL> alter database add standby logfile group 6 '/u01/app/oracle/oradata/orcl/standby_redo06.log' size 50M;
Database altered.
SQL> alter database add standby logfile group 7 '/u01/app/oracle/oradata/orcl/standby_redo07.log' size 50M;
Database altered.
Look at the log Group membership:
SQL> set pagesize 100
SQL> col member for a60
SQL> select group#,member from v$logfile order by group#;
GROUP# MEMBER
---------- ------------------------------------------------------------
1 /u01/app/oracle/oradata/orcl/redo01.log
2 /u01/app/oracle/oradata/orcl/redo02.log
3 /u01/app/oracle/oradata/orcl/redo03.log
4 /u01/app/oracle/oradata/orcl/standby_redo04.log
5 /u01/app/oracle/oradata/orcl/standby_redo05.log
6 /u01/app/oracle/oradata/orcl/standby_redo06.log
7 /u01/app/oracle/oradata/orcl/standby_redo07.log
7 rows selected.
Query results are displayed successfully added.
4: Modify the main library and library equipment monitor file, set a static monitor.
Listener.ora file into the main library:
[oracle@apollo dbs]$ cd ../network/admin/
[oracle@apollo admin]$ cat listener.ora
SID_LIST_LISTENER=
(SID_LIST=
(SID_DESC=
(GLOBAL_DBNAME= orcl)
(ORACLE_HOME=/u01/app/oracle/product/11.2.0/dbhome_1)
(SID_NAME=orcl)
)
)
LISTENER =
(DESCRIPTION_LIST =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1521))
(ADDRESS = (PROTOCOL = TCP)(HOST = 10.211.55.100)(PORT = 1521))
)
)
ADR_BASE_LISTENER = /u01/app/oracle
Prepared by the library of the listener.ora file:
[oracle@neptune admin]$ cat listener.ora
SID_LIST_LISTENER=
(SID_LIST=
(SID_DESC=
(GLOBAL_DBNAME= orcl)
(ORACLE_HOME=/u01/app/oracle/product/11.2.0/dbhome_1)
(SID_NAME=orcl)
)
)
LISTENER =
(DESCRIPTION_LIST =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1521))
(ADDRESS = (PROTOCOL = TCP)(HOST = 10.211.55.101)(PORT = 1521))
)
)
ADR_BASE_LISTENER = /u01/app/oracle
The main library and library equipment listeners listener.ora file after changing for the better in accordance with the above, restart the listener service:
Restart the listener main library:
[oracle@apollo admin]$ lsnrctl stop
LSNRCTL for Linux: Version 11.2.0.1.0 - Production on 27-FEB-2020 21:12:01
Copyright (c) 1991, 2009, Oracle. All rights reserved.
Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=IPC)(KEY=EXTPROC1521)))
The command completed successfully
[oracle@apollo admin]$ lsnrctl start
LSNRCTL for Linux: Version 11.2.0.1.0 - Production on 27-FEB-2020 21:12:09
Copyright (c) 1991, 2009, Oracle. All rights reserved.
Starting /u01/app/oracle/product/11.2.0/dbhome_1/bin/tnslsnr: please wait...
TNSLSNR for Linux: Version 11.2.0.1.0 - Production
System parameter file is /u01/app/oracle/product/11.2.0/dbhome_1/network/admin/listener.ora
Log messages written to /u01/app/oracle/diag/tnslsnr/apollo/listener/alert/log.xml
Listening on: (DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=EXTPROC1521)))
Listening on: (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=10.211.55.100)(PORT=1521)))
Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=IPC)(KEY=EXTPROC1521)))
STATUS of the LISTENER
------------------------
Alias LISTENER
Version TNSLSNR for Linux: Version 11.2.0.1.0 - Production
Start Date 27-FEB-2020 21:12:09
Uptime 0 days 0 hr. 0 min. 0 sec
Trace Level off
Security ON: Local OS Authentication
SNMP OFF
Listener Parameter File /u01/app/oracle/product/11.2.0/dbhome_1/network/admin/listener.ora
Listener Log File /u01/app/oracle/diag/tnslsnr/apollo/listener/alert/log.xml
Listening Endpoints Summary...
(DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=EXTPROC1521)))
(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=10.211.55.100)(PORT=1521)))
Services Summary...
Service "orcl" has 1 instance(s).
Instance "orcl", status UNKNOWN, has 1 handler(s) for this service...
The command completed successfully
Preparation restart the listener library:
[oracle@neptune admin]$ lsnrctl stop
LSNRCTL for Linux: Version 11.2.0.1.0 - Production on 27-FEB-2020 21:12:52
Copyright (c) 1991, 2009, Oracle. All rights reserved.
Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=IPC)(KEY=EXTPROC1521)))
The command completed successfully
[oracle@neptune admin]$ lsnrctl start
LSNRCTL for Linux: Version 11.2.0.1.0 - Production on 27-FEB-2020 21:13:00
Copyright (c) 1991, 2009, Oracle. All rights reserved.
Starting /u01/app/oracle/product/11.2.0/dbhome_1/bin/tnslsnr: please wait...
TNSLSNR for Linux: Version 11.2.0.1.0 - Production
System parameter file is /u01/app/oracle/product/11.2.0/dbhome_1/network/admin/listener.ora
Log messages written to /u01/app/oracle/diag/tnslsnr/neptune/listener/alert/log.xml
Listening on: (DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=EXTPROC1521)))
Listening on: (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=10.211.55.101)(PORT=1521)))
Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=IPC)(KEY=EXTPROC1521)))
STATUS of the LISTENER
------------------------
Alias LISTENER
Version TNSLSNR for Linux: Version 11.2.0.1.0 - Production
Start Date 27-FEB-2020 21:13:00
Uptime 0 days 0 hr. 0 min. 0 sec
Trace Level off
Security ON: Local OS Authentication
SNMP OFF
Listener Parameter File /u01/app/oracle/product/11.2.0/dbhome_1/network/admin/listener.ora
Listener Log File /u01/app/oracle/diag/tnslsnr/neptune/listener/alert/log.xml
Listening Endpoints Summary...
(DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=EXTPROC1521)))
(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=10.211.55.101)(PORT=1521)))
Services Summary...
Service "orcl" has 1 instance(s).
Instance "orcl", status UNKNOWN, has 1 handler(s) for this service...
The command completed successfully
5: Network service name tnsname.ora main library file editing and backup library.
Main library:
Preparation library:
That is the main library tnsnames.ora file and library equipment is exactly the same.
With a good, tnsping about each other, to see if the pass:
Tnsping standby main library Library:
[oracle@apollo admin]$ tnsping STANDBY
TNS Ping Utility for Linux: Version 11.2.0.1.0 - Production on 27-FEB-2020 21:23:39
Copyright (c) 1997, 2009, Oracle. All rights reserved.
Used parameter files:
Used TNSNAMES adapter to resolve the alias
Attempting to contact (DESCRIPTION = (ADDRESS_LIST = (ADDRESS = (PROTOCOL = TCP)(HOST = 10.211.55.101)(PORT = 1521))) (CONNECT_DATA = (SID = orcl)))
OK (0 msec)
备库tnsping主库：
[oracle@neptune admin]$ tnsping PRIMARY
TNS Ping Utility for Linux: Version 11.2.0.1.0 - Production on 27-FEB-2020 21:26:01
Copyright (c) 1997, 2009, Oracle. All rights reserved.
Used parameter files:
Used TNSNAMES adapter to resolve the alias
Attempting to contact (DESCRIPTION = (ADDRESS_LIST = (ADDRESS = (PROTOCOL = TCP)(HOST = 10.211.55.100)(PORT = 1521))) (CONNECT_DATA = (SID = orcl)))
OK (10 msec)
6：修改主库的pfile文件。
查看主库spfile文件位置：
SQL> show parameter spfile;
NAME TYPE
------------------------------------ ----------------------
VALUE
------------------------------
spfile string
/u01/app/oracle/product/11.2.0
/dbhome_1/dbs/spfileorcl.ora
创建一个pfile用于修改：
SQL> create pfile from spfile;
File created.
去修改创建的pfile文件：
[oracle@apollo admin]$ cd /$ORACLE_HOME/dbs
[oracle@apollo dbs]$ ls
hc_DBUA0.dat hc_orcl.dat init.ora initorcl.ora lkORCL orapworcl spfileorcl.ora
[oracle@apollo dbs]$ vi initorcl.ora
编辑后的文件内容如下（红框部分为新增）：
orcl.__db_cache_size=180355072 orcl.__java_pool_size=16777216 orcl.__large_pool_size=4194304 orcl.__oracle_base='/u01/app/oracle'#ORACLE_BASE set from environment orcl.__pga_aggregate_target=289406976 orcl.__sga_target=545259520 orcl.__shared_io_pool_size=0 orcl.__shared_pool_size=322961408 orcl.__streams_pool_size=8388608 *.audit_file_dest='/u01/app/oracle/admin/orcl/adump' *.audit_trail='db' *.compatible='11.2.0.0.0' *.control_files='/u01/app/oracle/oradata/orcl/control01.ctl','/u01/app/oracle/flash_recovery_area/orcl/control02.ctl' *.db_block_size=8192 *.db_domain='' *.db_name='orcl' *.db_recovery_file_dest='/u01/app/oracle/flash_recovery_area' *.db_recovery_file_dest_size=4070572032 *.diagnostic_dest='/u01/app/oracle' *.dispatchers='(PROTOCOL=TCP) (SERVICE=orclXDB)' *.memory_target=834666496 *.open_cursors=300 *.processes=150 *.remote_login_passwordfile='EXCLUSIVE' *.undo_tablespace='UNDOTBS1' *.fal_client='PRIMARY' *.fal_server='STANDBY' *.log_archive_config='DG_CONFIG=(PRIMARY,STANDBY)' *.log_archive_dest_1='location=/u01/app/oracle/oradata/orcl/arc valid_for=(all_logfiles,all_roles) db_unique_name=PRIMARY' *.log_archive_dest_2='service=STANDBY lgwr async valid_for=(online_logfiles,primary_role) db_unique_name=STANDBY' *.standby_file_management='AUTO' *.db_unique_name='PRIMARY'
在主库手动创建arc目录：
[oracle@apollo dbs]$ cd /u01/app/oracle/oradata/orcl
[oracle@apollo orcl]$ mkdir arc
从pfile创建spfile，然后从spfile重启数据库：
[oracle@apollo orcl]$ sqlplus / as sysdba
SQL*Plus: Release 11.2.0.1.0 Production on Thu Feb 27 22:05:25 2020
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> shutdown immediate
Database closed.
Database dismounted.
ORACLE instance shut down.
SQL> create spfile from pfile;
File created.
启动数据库，检查对pfile的修改已经生效：
SQL> startup
ORACLE instance started.
Total System Global Area 830930944 bytes
Fixed Size 2217912 bytes
Variable Size 641730632 bytes
Database Buffers 180355072 bytes
Redo Buffers 6627328 bytes
Database mounted.
Database opened.
SQL> archive log list;
Database log mode Archive Mode
Automatic archival Enabled
Archive destination /u01/app/oracle/oradata/orcl/arc
Oldest online log sequence 96
Next log sequence to archive 98
Current log sequence 98
从上面的Archive destination /u01/app/oracle/oradata/orcl/arc可以看出pfile已经生效了。
查看数据库是否用spfile启动：
SQL> show parameter spfile;
NAME TYPE
------------------------------------ ----------------------
VALUE
------------------------------
spfile string
/u01/app/oracle/product/11.2.0
/dbhome_1/dbs/spfileorcl.ora
可以看到spfile的路径，说明是从spfile启动的。
7：修改备库的pfile文件，并用新的pfile创建spfile后重启备库。
直接将pfile从主库拷贝到备库，然后在备库修改pfile文件：
[oracle@apollo dbs]$ ls
hc_DBUA0.dat hc_orcl.dat init.ora initorcl.ora lkORCL lkPRIMARY orapworcl spfileorcl.ora
[oracle@apollo dbs]$ pwd
/u01/app/oracle/product/11.2.0/dbhome_1/dbs
[oracle@apollo dbs]$ scp initorcl.ora [email protected]:/u01/app/oracle/product/11.2.0/dbhome_1/dbs
[email protected]'s password:
initorcl.ora 100% 1305 1.7MB/s 00:00
去备库修改文件：
orcl.__db_cache_size=180355072 orcl.__java_pool_size=16777216 orcl.__large_pool_size=4194304 orcl.__oracle_base='/u01/app/oracle'#ORACLE_BASE set from environment orcl.__pga_aggregate_target=289406976 orcl.__sga_target=545259520 orcl.__shared_io_pool_size=0 orcl.__shared_pool_size=322961408 orcl.__streams_pool_size=8388608 *.audit_file_dest='/u01/app/oracle/admin/orcl/adump' *.audit_trail='db' *.compatible='11.2.0.0.0' *.control_files='/u01/app/oracle/oradata/orcl/control01.ctl','/u01/app/oracle/flash_recovery_area/orcl/control02.ctl' *.db_block_size=8192 *.db_domain='' *.db_name='orcl' *.db_recovery_file_dest='/u01/app/oracle/flash_recovery_area' *.db_recovery_file_dest_size=4070572032 *.diagnostic_dest='/u01/app/oracle' *.dispatchers='(PROTOCOL=TCP) (SERVICE=orclXDB)' *.memory_target=834666496 *.open_cursors=300 *.processes=150 *.remote_login_passwordfile='EXCLUSIVE' *.undo_tablespace='UNDOTBS1' *.fal_client='STANDBY' *.fal_server='PRIMARY' *.log_archive_config='DG_CONFIG=(PRIMARY,STANDBY)' *.log_archive_dest_1='location=/u01/app/oracle/oradata/orcl/arc valid_for=(all_logfiles,all_roles) db_unique_name=STANDBY' *.log_archive_dest_2='service=STANDBY lgwr async valid_for=(online_logfiles,primary_role) db_unique_name=PRIMARY' *.standby_file_management='AUTO' *.db_unique_name='STANDBY' *.db_file_name_convert='/u01/app/oracle/oradata/orcl','/u01/app/oracle/oradata/orcl' *.log_file_name_convert='/u01/app/oracle/oradata/orcl','/u01/app/oracle/oradata/orcl'
备库上手工创建相应目录：
[oracle@neptune dbs]$ pwd
/u01/app/oracle/product/11.2.0/dbhome_1/dbs
[oracle@neptune dbs]$ cd /u01/app/oracle/oradata/
[oracle@neptune oradata]$ mkdir arc
[oracle@neptune orcl]$ pwd
/u01/app/oracle/oradata/orcl
[oracle@neptune orcl]$ mkdir adump
备库上从pfile创建spfile，重启数据库至nomount状态
SQL> create spfile from pfile;
File created.
SQL> startup nomount;
ORACLE instance started.
Total System Global Area 830930944 bytes
Fixed Size 2217912 bytes
Variable Size 641730632 bytes
Database Buffers 180355072 bytes
Redo Buffers 6627328 bytes
8：利用RMAN在备库上恢复主库。
oracle@neptune orcl]$ rman target sys/123456@primary auxiliary sys/123456@standby
Recovery Manager: Release 11.2.0.1.0 - Production on Thu Feb 27 22:46:44 2020
Copyright (c) 1982, 2009, Oracle and/or its affiliates. All rights reserved.
connected to target database: ORCL (DBID=1529715921)
connected to auxiliary database: ORCL (not mounted)
执行恢复：
RMAN> duplicate target database for standby from active database nofilenamecheck;
Starting Duplicate Db at 27-FEB-20
using target database control file instead of recovery catalog
allocated channel: ORA_AUX_DISK_1
channel ORA_AUX_DISK_1: SID=134 device type=DISK
contents of Memory Script:
{
backup as copy reuse
targetfile '/u01/app/oracle/product/11.2.0/dbhome_1/dbs/orapworcl' auxiliary format
'/u01/app/oracle/product/11.2.0/dbhome_1/dbs/orapworcl' ;
}
executing Memory Script
Starting backup at 27-FEB-20
allocated channel: ORA_DISK_1
channel ORA_DISK_1: SID=145 device type=DISK
Finished backup at 27-FEB-20
contents of Memory Script:
{
backup as copy current controlfile for standby auxiliary format '/u01/app/oracle/oradata/orcl/control01.ctl';
restore clone controlfile to '/u01/app/oracle/flash_recovery_area/orcl/control02.ctl' from
'/u01/app/oracle/oradata/orcl/control01.ctl';
}
executing Memory Script
Starting backup at 27-FEB-20
using channel ORA_DISK_1
channel ORA_DISK_1: starting datafile copy
copying standby control file
output file name=/u01/app/oracle/product/11.2.0/dbhome_1/dbs/snapcf_orcl.f tag=TAG20200227T224847 RECID=1 STAMP=1033512527
channel ORA_DISK_1: datafile copy complete, elapsed time: 00:00:01
Finished backup at 27-FEB-20
Starting restore at 27-FEB-20
using channel ORA_AUX_DISK_1
channel ORA_AUX_DISK_1: copied control file copy
Finished restore at 27-FEB-20
contents of Memory Script:
{
sql clone 'alter database mount standby database';
}
executing Memory Script
sql statement: alter database mount standby database
contents of Memory Script:
{
set newname for tempfile 1 to
"/u01/app/oracle/oradata/orcl/temp01.dbf";
switch clone tempfile all;
set newname for datafile 1 to
"/u01/app/oracle/oradata/orcl/system01.dbf";
set newname for datafile 2 to
"/u01/app/oracle/oradata/orcl/sysaux01.dbf";
set newname for datafile 3 to
"/u01/app/oracle/oradata/orcl/undotbs01.dbf";
set newname for datafile 4 to
"/u01/app/oracle/oradata/orcl/users01.dbf";
set newname for datafile 5 to
"/u01/app/oracle/oradata/orcl/pides_01.dbf";
backup as copy reuse
datafile 1 auxiliary format
"/u01/app/oracle/oradata/orcl/system01.dbf" datafile
2 auxiliary format
"/u01/app/oracle/oradata/orcl/sysaux01.dbf" datafile
3 auxiliary format
"/u01/app/oracle/oradata/orcl/undotbs01.dbf" datafile
4 auxiliary format
"/u01/app/oracle/oradata/orcl/users01.dbf" datafile
5 auxiliary format
"/u01/app/oracle/oradata/orcl/pides_01.dbf" ;
sql 'alter system archive log current';
}
executing Memory Script
executing command: SET NEWNAME
renamed tempfile 1 to /u01/app/oracle/oradata/orcl/temp01.dbf in control file
executing command: SET NEWNAME
executing command: SET NEWNAME
executing command: SET NEWNAME
executing command: SET NEWNAME
executing command: SET NEWNAME
Starting backup at 27-FEB-20
using channel ORA_DISK_1
channel ORA_DISK_1: starting datafile copy
input datafile file number=00004 name=/u01/app/oracle/oradata/orcl/users01.dbf
output file name=/u01/app/oracle/oradata/orcl/users01.dbf tag=TAG20200227T224855
channel ORA_DISK_1: datafile copy complete, elapsed time: 00:00:35
channel ORA_DISK_1: starting datafile copy
input datafile file number=00005 name=/u01/app/oracle/oradata/orcl/pides_01.dbf
output file name=/u01/app/oracle/oradata/orcl/pides_01.dbf tag=TAG20200227T224855
channel ORA_DISK_1: datafile copy complete, elapsed time: 00:00:25
channel ORA_DISK_1: starting datafile copy
input datafile file number=00001 name=/u01/app/oracle/oradata/orcl/system01.dbf
output file name=/u01/app/oracle/oradata/orcl/system01.dbf tag=TAG20200227T224855
channel ORA_DISK_1: datafile copy complete, elapsed time: 00:00:07
channel ORA_DISK_1: starting datafile copy
input datafile file number=00002 name=/u01/app/oracle/oradata/orcl/sysaux01.dbf
output file name=/u01/app/oracle/oradata/orcl/sysaux01.dbf tag=TAG20200227T224855
channel ORA_DISK_1: datafile copy complete, elapsed time: 00:00:25
channel ORA_DISK_1: starting datafile copy
input datafile file number=00003 name=/u01/app/oracle/oradata/orcl/undotbs01.dbf
output file name=/u01/app/oracle/oradata/orcl/undotbs01.dbf tag=TAG20200227T224855
channel ORA_DISK_1: datafile copy complete, elapsed time: 00:00:01
Finished backup at 27-FEB-20
sql statement: alter system archive log current
contents of Memory Script:
{
switch clone datafile all;
}
executing Memory Script
datafile 1 switched to datafile copy
input datafile copy RECID=1 STAMP=1033512627 file name=/u01/app/oracle/oradata/orcl/system01.dbf
datafile 2 switched to datafile copy
input datafile copy RECID=2 STAMP=1033512627 file name=/u01/app/oracle/oradata/orcl/sysaux01.dbf
datafile 3 switched to datafile copy
input datafile copy RECID=3 STAMP=1033512627 file name=/u01/app/oracle/oradata/orcl/undotbs01.dbf
datafile 4 switched to datafile copy
input datafile copy RECID=4 STAMP=1033512627 file name=/u01/app/oracle/oradata/orcl/users01.dbf
datafile 5 switched to datafile copy
input datafile copy RECID=5 STAMP=1033512627 file name=/u01/app/oracle/oradata/orcl/pides_01.dbf
Finished Duplicate Db at 27-FEB-20
RMAN>
至此，ADG搭建完成，补充说明下duplicate target database for standby from active database nofilenamecheck;这个命令，这个命令可以直接恢复数据文件、standby日志文件和控制文件。
9：检查主库和备库的归档序列号是否一致。
主库（先手动切换一下日志文件）：
SQL> alter system switch logfile;
System altered.
SQL> archive log list;
Database log mode Archive Mode
Automatic archival Enabled
Archive destination /u01/app/oracle/oradata/orcl/arc
Oldest online log sequence 100
Next log sequence to archive 102
Current log sequence 102
SQL>
备库：
RMAN> quit
Recovery Manager complete.
[oracle@neptune orcl]$ sqlplus / as sysdba
SQL*Plus: Release 11.2.0.1.0 Production on Thu Feb 27 22:53:20 2020
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> archive log list;
Database log mode Archive Mode
Automatic archival Enabled
Archive destination /u01/app/oracle/oradata/orcl/arc
Oldest online log sequence 100
Next log sequence to archive 0
Current log sequence 102
可见主库和备库的归档序列号是一致的。
10：后续操作。
备库恢复完成后，数据库的状态是mounted，并且此时DG的保护模式是最高性能，查询备库：
SQL> select database_role,protection_mode,protection_level,open_mode from v$database;
DATABASE_ROLE PROTECTION_MODE
-------------------------------- ----------------------------------------
PROTECTION_LEVEL
----------------------------------------
OPEN_MODE
----------------------------------------
PHYSICAL STANDBY MAXIMUM PERFORMANCE
MAXIMUM PERFORMANCE
MOUNTED
SQL>
一般的可以将备库设置成只读模式以便启用备机实时查询：
在备库上执行：
SQL> shutdown immediate
ORA-01109: database not open
Database dismounted.
ORACLE instance shut down.
SQL> startup
ORACLE instance started.
Total System Global Area 830930944 bytes
Fixed Size 2217912 bytes
Variable Size 641730632 bytes
Database Buffers 180355072 bytes
Redo Buffers 6627328 bytes
Database mounted.
Database opened.
SQL>
SQL> select process,client_process,sequence#,status from v$managed_standby;
PROCESS CLIENT_PROCESS SEQUENCE# STATUS
------------------ ---------------- ---------- ------------------------
ARCH ARCH 103 CLOSING
ARCH ARCH 0 CONNECTED
ARCH ARCH 0 CONNECTED
ARCH ARCH 102 CLOSING
RFS N/A 0 IDLE
RFS LGWR 104 IDLE
6 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$managed_standby;
PROCESS CLIENT_PROCESS SEQUENCE# STATUS
------------------ ---------------- ---------- ------------------------
ARCH ARCH 103 CLOSING
ARCH ARCH 0 CONNECTED
ARCH ARCH 0 CONNECTED
ARCH ARCH 102 CLOSING
RFS N/A 0 IDLE
RFS LGWR 104 IDLE
MRP0 N/A 104 APPLYING_LOG
7 rows selected.
SQL>
在主库创建一个表并执行插入数据：
SQL> create table test_sync(id varchar2(100));
Table created.
SQL> insert into test_sync values('111');
1 row created.
SQL> commit;
Commit complete.
去备库查询：
[oracle@neptune orcl]$ sqlplus orcl/123456
SQL*Plus: Release 11.2.0.1.0 Production on Thu Feb 27 23:21:04 2020
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> select * from test_sync;
ID
--------------------------------------------------------------------------------
111
SQL>
可以正常同步！
日常维护，只需要使用下面的语句检查主库和备库的v$archived_log视图即可：
select * from (select SEQUENCE#,FIRST_TIME,NEXT_TIME,APPLIED from v$archived_log order by 1 desc) where rownum<10 ;
主库：
SQL> select * from (select SEQUENCE#,FIRST_TIME,NEXT_TIME,APPLIED from v$archived_log order by 1 desc) where rownum<10 ;
SEQUENCE# FIRST_TIME NEXT_TIME APPLIED
---------- ------------ ------------ ------------------
103 27-FEB-20 27-FEB-20 NO
103 27-FEB-20 27-FEB-20 NO
102 27-FEB-20 27-FEB-20 NO
102 27-FEB-20 27-FEB-20 YES
101 27-FEB-20 27-FEB-20 YES
101 27-FEB-20 27-FEB-20 NO
100 27-FEB-20 27-FEB-20 NO
100 27-FEB-20 27-FEB-20 YES
99 27-FEB-20 27-FEB-20 NO
9 rows selected.
SQL>
备库：
SQL> select * from (select SEQUENCE#,FIRST_TIME,NEXT_TIME,APPLIED from v$archived_log order by 1 desc) where rownum<10 ;
SEQUENCE# FIRST_TIME NEXT_TIME APPLIED
---------- ------------ ------------ ------------------
103 27-FEB-20 27-FEB-20 IN-MEMORY
102 27-FEB-20 27-FEB-20 YES
101 27-FEB-20 27-FEB-20 YES
100 27-FEB-20 27-FEB-20 YES
99 27-FEB-20 27-FEB-20 YES
98 27-FEB-20 27-FEB-20 YES
6 rows selected.
SQL>
有部分日志还没有被应用，主要是因为日志还没归档，可以执行alter system switch logfile;后再查看。
因为是自己的电脑上搭建的，避免不了要经常关闭和启动ADG环境:
关闭ADG环境步骤：
主库shutdown——备库取消应用归档日志——关闭备库——关闭主库和备库的lsnrctl监听。
1：主库上：SQL> shutdown immediate
2：备库上：SQL> alter database recover managed standby database cancel;
3：备库上：SQL> shutdown immediate
4：主库和备库：
[oracle@apollo ~]$ lsnrctl stop
[oracle@neptune ~]$ lsnrctl stop
启动ADG环境步骤：
启动主库和备库lsnrctl监听——启动备库——启动主库——切换主库日志
1：主库和备库：
[oracle@apollo ~]$ lsnrctl start
[oracle@neptune ~]$ lsnrctl start
2：启动备库：
具体的ADG运维又是另一块内容了，涉及较多知识，后续再在此基础上研究。