DG搭建内容和步骤

Posted 2021-01-05 lswei

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DATA guard 搭建内容

主库通过网络把日志文件传输到副库

实现原理：主库是好的，副库安装数据库软件

oracle软件目录 /u01/app/oraI

查看环境变量 env|grep ORACLE

ps -ef|grep smon

v$database 反应的是控制文件信息

搭建DG必须开归档模式

开启快速恢复区：

默认路径db_recovery_file_dest /u01/app/oracle/fast_recovery_area

大小 db_recovery_file_dest_size 4977m

如果没开启，先设置大小，在设置路径

log_archive_dest_数字配置归档目的地最大31个

oracle默认能在这31个文件设置归档

如果没配置归档目的地，oracle将归档日志放在快速恢复区中

查看是否开启归档是否使用快速恢复区 archive log list

检索视图

select log_mode,force_logging from v$database;

alter database force logging;

define _editor=vim

edit liushuwei.sql ---简写ed liushuwei

oerr ora 17628

select SEQUENCE#,applied from v$archived_log;

SELECT * FROM V$MANAGED_STANDBY

DG三种保护模式：

最高可用性，最大保护，最高性能（企业常用）

备库分为，物理和逻辑

物理备库：recover技术 mount状态（可以得到完成主库的备份）11g特性 ADG（活动的DG）---由mount状态变为readonly状态实现主备的读写分离

逻辑备库：logminer技术（数据挖掘）主库的备份转回为sql语句 open状态

DATA 搭建步骤

1.主库操作

1.1配置强制日志模式和归档：

[[email protected] ~]$ sqlplus / as sysdba

SQL*Plus: Release 11.2.0.3.0 Production on Sun Apr 30 17:52:58 2017

Copyright (c) 1982, 2011, Oracle.  All rights reserved.

Connected to:

Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - Production

With the Partitioning, OLAP, Data Mining and Real Application Testing options

[email protected]> select log_mode,force_logging from v$database;

LOG_MODE     FOR

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

ARCHIVELOG   NO

[email protected]> alter database force logging;

Database altered.

[email protected]> archive log list;

Database log mode              Archive Mode

Automatic archival             Enabled

Archive destination            USE_DB_RECOVERY_FILE_DEST

Oldest online log sequence     29

Next log sequence to archive   31

Current log sequence           31

[email protected]> show parameter db_recovery

NAME                                 TYPE        VALUE

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

db_recovery_file_dest                string      /home/oracle/flash

db_recovery_file_dest_size           big integer 4G

[email protected]> alter system switch logfile;

System altered.

1.2 创建Standby logfile：

[email protected]> ed1

alter database add standby logfile group 4 (‘/u01/app/oracle/oradata/PROD1/stlog01.log‘) size 100m;

alter database add standby logfile group 5 (‘/u01/app/oracle/oradata/PROD1/stlog02.log‘) size 100m;

alter database add standby logfile group 6 (‘/u01/app/oracle/oradata/PROD1/stlog03.log‘) size 100m;

alter database add standby logfile group 7 (‘/u01/app/oracle/oradata/PROD1/stlog04.log‘) size 100m;

[email protected]> @1

Database altered.

Database altered.

Database altered.

Database altered.

1.3 创建参数文件：

[email protected]> create pfile from spfile;

File created.

1.4 修改参数文件：

[[email protected] ~]$ cd $ORACLE_HOME/dbs

[[email protected] dbs]$ vi initPROD1.ora 

DB_NAME=PROD1

DB_UNIQUE_NAME=PROD1

LOG_ARCHIVE_CONFIG=‘DG_CONFIG=(PROD1,SBDB1)‘

LOG_ARCHIVE_DEST_1=

 ‘LOCATION=use_db_recovery_file_dest

  VALID_FOR=(ALL_LOGFILES,ALL_ROLES)

  DB_UNIQUE_NAME=PROD1‘

LOG_ARCHIVE_DEST_2=

 ‘SERVICE=SBDB1 ASYNC

  VALID_FOR=(ONLINE_LOGFILES,PRIMARY_ROLE)

  DB_UNIQUE_NAME=SBDB1‘

LOG_ARCHIVE_DEST_STATE_1=ENABLE

LOG_ARCHIVE_DEST_STATE_2=ENABLE

REMOTE_LOGIN_PASSWORDFILE=EXCLUSIVE

LOG_ARCHIVE_FORMAT=%t_%s_%r.arc

FAL_SERVER=SBDB1

DB_FILE_NAME_CONVERT=‘SBDB1‘,‘PROD1‘

LOG_FILE_NAME_CONVERT=‘SBDB1‘,‘PROD1‘

STANDBY_FILE_MANAGEMENT=AUTO

dg_broker_start=true

1.5 修改监听文件：

[[email protected] dbs]$ vi ../network/admin/listener.ora 

LISTENER =

  (DESCRIPTION_LIST =

    (DESCRIPTION =

      (ADDRESS = (PROTOCOL = TCP)(HOST = edbjr2p1.example.com)(PORT = 1521))

      (ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1521))

)

)

ADR_BASE_LISTENER = /u01/app/oracle

SID_LIST_LISTENER=

  (SID_LIST=

    (SID_DESC=

      (GLOBAL_DBNAME=PROD1.us.oracle.com)

      (ORACLE_HOME=/u01/app/oracle/product/11.2.0/dbhome_1)

      (SID_NAME=PROD1))

    (SID_DESC=

      (GLOBAL_DBNAME=PROD1_DGMGRL.us.oracle.com)

      (ORACLE_HOME=/u01/app/oracle/product/11.2.0/dbhome_1)

      (SID_NAME=PROD1))

    (SID_DESC=

      (SID_NAME=plsextproc)

      (ORACLE_HOME=/u01/app/oracle/product/11.2.0/dbhome_1)

      (PROGRAM=extproc)))

[[email protected] dbs]$ vi ../network/admin/tnsnames.ora 

##添加上如下内容     

SBDB1 =

  (DESCRIPTION =

    (ADDRESS_LIST =

      (ADDRESS = (PROTOCOL = TCP)(HOST = edbjr2p2.example.com)(PORT = 1521))

)

    (CONNECT_DATA =

      (SERVICE_NAME = SBDB1.us.oracle.com)

)

)

1.6 传输文件到备库主机：

[[email protected] dbs]$ scp initPROD1.ora edbjr2p2:/u01/app/oracle/product/11.2.0/db_1/dbs/initSBDB1.ora

[email protected]jr2p2‘s password: 

initPROD1.ora                             100% 1385     1.4KB/s   00:00    

[[email protected] dbs]$ scp orapwPROD1 edbjr2p2:/u01/app/oracle/product/11.2.0/db_1/dbs/orapwSBDB1

[email protected]‘s password: 

orapwPROD1                                100% 1536     1.5KB/s   00:00    

[[email protected] dbs]$ scp ../network/admin/listener.ora ../network/admin/tnsnames.ora edbjr2p2:/u01/app/oracle/product/11.2.0/db_1/network/admin

[email protected]‘s password: 

listener.ora                              100%  837     0.8KB/s   00:00    

tnsnames.ora                              100% 1971     1.9KB/s   00:00    

1.7 重启主库使配置生效：

[[email protected] dbs]$ sqlplus / as sysdba

SQL*Plus: Release 11.2.0.3.0 Production on Sun Apr 30 18:06:13 2017

Copyright (c) 1982, 2011, Oracle.  All rights reserved.

Connected to:

Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - Production

With the Partitioning, OLAP, Data Mining and Real Application Testing options

[email protected]> shu immediate

Database closed.

Database dismounted.

ORACLE instance shut down.

[email protected]> create spfile from pfile;

File created.

[email protected]> startup

ORACLE instance started.

Total System Global Area  941600768 bytes

Fixed Size                  1348860 bytes

Variable Size             553650948 bytes

Database Buffers          381681664 bytes

Redo Buffers                4919296 bytes

Database mounted.

Database opened.

[email protected]> 

2.备库操作

2.1 创建对应路径：

[[email protected] ~]$ cd /u01/app/oracle/

[[email protected] oracle]$ mkdir -p admin/SBDB1/adump

[[email protected] oracle]$ mkdir -p oradata/SBDB1

[[email protected] dbs]$ mkdir -p /home/oracle/flash

2.2 修改参数文件：

[[email protected] oracle]$ cd $ORACLE_HOME/dbs

[[email protected] dbs]$ vi initSBDB1.ora         #追加到

DB_NAME=PROD1

DB_UNIQUE_NAME=SBDB1                   # 区分主备

LOG_ARCHIVE_CONFIG=‘DG_CONFIG=(SBDB1,PROD1)‘             # 数据库名，主|备

LOG_ARCHIVE_DEST_1=                           # 本地归档

 ‘LOCATION=use_db_recovery_file_dest          # 需为本地目录

  VALID_FOR=(ALL_LOGFILES,ALL_ROLES)          # 日志与角色选择（all,standby,online; zhu,bei,all)

  DB_UNIQUE_NAME=SBDB1‘                       # 应用于此数据库

LOG_ARCHIVE_DEST_2=                           # 远程归档

 ‘SERVICE=PROD1 ASYNC                         # tnsname.ora 的别名   /   传输模式：ASYNC 异步 | SYNC 同步

  VALID_FOR=(ONLINE_LOGFILES,PRIMARY_ROLE)    # 日志与角色  

  DB_UNIQUE_NAME=PROD1‘                       # 

LOG_ARCHIVE_DEST_STATE_1=ENABLE               # 表示归档目的地可用

LOG_ARCHIVE_DEST_STATE_2=ENABLE

REMOTE_LOGIN_PASSWORDFILE=EXCLUSIVE           # 远程登陆

LOG_ARCHIVE_FORMAT=%t_%s_%r.arc               # 归档日志格式 使用快速恢复区时（自己管理），此参数无效。

FAL_SERVER=PROD1                              # 获取归档日志的服务器                                           备库使用参数1

DB_FILE_NAME_CONVERT=‘PROD1‘,‘SBDB1‘          # 日志名转换时    后面的替换前面的，可有多项 1替2，3替4等;                   2

LOG_FILE_NAME_CONVERT=‘PROD1‘,‘SBDB1‘         #                                                                            3

STANDBY_FILE_MANAGEMENT=AUTO                  #                                                                            4

dg_broker_start=true

2.3 修改网络配置文件：

[[email protected] dbs]$ vi ../network/admin/listener.ora 

LISTENER =

  (DESCRIPTION_LIST =

    (DESCRIPTION =

      (ADDRESS = (PROTOCOL = TCP)(HOST = edbjr2p2.example.com)(PORT = 1521))

      (ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1521))

)

)

ADR_BASE_LISTENER = /u01/app/oracle

SID_LIST_LISTENER=

  (SID_LIST=

    (SID_DESC=

      (GLOBAL_DBNAME=SBDB1.us.oracle.com)

      (ORACLE_HOME=/u01/app/oracle/product/11.2.0/db_1)

      (SID_NAME=SBDB1))

    (SID_DESC=

      (GLOBAL_DBNAME=SBDB1_DGMGRL.us.oracle.com)

      (ORACLE_HOME=/u01/app/oracle/product/11.2.0/db_1)

      (SID_NAME=SBDB1))

    (SID_DESC=

      (SID_NAME=plsextproc)

      (ORACLE_HOME=/u01/app/oracle/product/11.2.0/db_1)

      (PROGRAM=extproc)))

2.4 重启网络配置：

[[email protected] dbs]$ lsnrctl reload

LSNRCTL for Linux: Version 11.2.0.3.0 - Production on 30-APR-2017 18:14:15

Copyright (c) 1991, 2011, Oracle.  All rights reserved.

Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=edbjr2p2.example.com)(PORT=1521)))

The command completed successfully

[[email protected] dbs]$ lsnrctl status

LSNRCTL for Linux: Version 11.2.0.3.0 - Production on 30-APR-2017 18:14:22

Copyright (c) 1991, 2011, Oracle.  All rights reserved.

Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=edbjr2p2.example.com)(PORT=1521)))

STATUS of the LISTENER

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

Alias                     LISTENER

Version                   TNSLSNR for Linux: Version 11.2.0.3.0 - Production

Start Date                30-APR-2017 17:22:08

Uptime                    0 days 0 hr. 52 min. 14 sec

Trace Level               off

Security                  ON: Local OS Authentication

SNMP                      OFF

Listener Parameter File   /u01/app/oracle/product/11.2.0/db_1/network/admin/listener.ora

Listener Log File         /u01/app/oracle/diag/tnslsnr/edbjr2p2/listener/alert/log.xml

Listening Endpoints Summary...

  (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=edbjr2p2.example.com)(PORT=1521)))

  (DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=EXTPROC1521)))

Services Summary...

Service "EMREP.us.oracle.com" has 1 instance(s).

  Instance "EMREP", status READY, has 1 handler(s) for this service...

Service "EMREPXDB.us.oracle.com" has 1 instance(s).

  Instance "EMREP", status READY, has 1 handler(s) for this service...

Service "ORCLXDB" has 1 instance(s).

  Instance "PROD3", status READY, has 1 handler(s) for this service...

Service "PROD3" has 1 instance(s).

  Instance "PROD3", status READY, has 1 handler(s) for this service...

Service "PROD4.us.oracle.com" has 1 instance(s).

  Instance "PROD4", status READY, has 1 handler(s) for this service...

Service "PROD4XDB.us.oracle.com" has 1 instance(s).

  Instance "PROD4", status READY, has 1 handler(s) for this service...

Service "SBDB1.us.oracle.com" has 1 instance(s).

  Instance "SBDB1", status UNKNOWN, has 1 handler(s) for this service...

Service "SBDB1_DGMGRL.us.oracle.com" has 1 instance(s).

  Instance "SBDB1", status UNKNOWN, has 1 handler(s) for this service...

Service "plsextproc" has 1 instance(s).

  Instance "plsextproc", status UNKNOWN, has 1 handler(s) for this service...

The command completed successfully

[[email protected] dbs]$ sudo mount -o remount,size=4g /dev/shm

2.5 启动辅助实例：

$ cd /u01/app/oracle

$ mkdir fast_recovery_area;

$ cd fast_recovery_area;

$ mkdir sbdb1;

[[email protected] dbs]$ sqlplus / as sysdba

SQL*Plus: Release 11.2.0.3.0 Production on Sun Apr 30 18:16:40 2017

Copyright (c) 1982, 2011, Oracle.  All rights reserved.

Connected to an idle instance.

SQL> create spfile from pfile;

File created.

SQL> startup nomount

ORACLE instance started.

Total System Global Area  941600768 bytes

Fixed Size                  1348860 bytes

Variable Size             553650948 bytes

Database Buffers          381681664 bytes

Redo Buffers                4919296 bytes

SQL> 

3.搭建备库：

3.1 使用复制数据库技术搭建备库：

[[email protected] ~]$ rman target / auxiliary sys/[email protected]          # 主库操作，主库@备库

Recovery Manager: Release 11.2.0.3.0 - Production on Sun Apr 30 18:17:30 2017

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

connected to target database: PROD1 (DBID=2082231315)

connected to auxiliary database: PROD1 (not mounted)

 # 批处理命令，连续操作需清空之前数据

RMAN> DUPLICATE TARGET DATABASE  # 复制目标库

FOR STANDBY                      # standby 表复制为备库

FROM ACTIVE DATABASE             #

DORECOVER                        # 应用归档

NOFILENAMECHECK;                 # 文件名检查，同台机器需检查，不同的，异地不检查

3.2 使用broker管理DG：

[[email protected] ~]$ dgmgrl /

DGMGRL for Linux: Version 1

1.2.0.3.0 - Production

Copyright (c) 2000, 2009, Oracle. All rights reserved.

Welcome to DGMGRL, type "help" for information.

Connected.

DGMGRL> help create

Creates a broker configuration

Syntax:

  CREATE CONFIGURATION <configuration name> AS

    PRIMARY DATABASE IS <database name>

    CONNECT IDENTIFIER IS <connect identifier>;

##创建配置

DGMGRL> CREATE CONFIGURATION dgbroker as PRIMARY DATABASE IS prod1 CONNECT IDENTIFIER IS prod1;

Configuration "dgbroker" created with primary database "prod1"

DGMGRL> help add

Adds a standby database to the broker configuration

Syntax:

  ADD DATABASE <database name>

    [AS CONNECT IDENTIFIER IS <connect identifier>]

    [MAINTAINED AS {PHYSICAL|LOGICAL}];

##添加备库到配置

DGMGRL> ADD DATABASE sbdb1 AS CONNECT IDENTIFIER IS sbdb1 MAINTAINED AS PHYSICAL;

Database "sbdb1" added

DGMGRL> show configuration;

Configuration - dgbroker

  Protection Mode: MaxPerformance

  Databases:

    prod1 - Primary database

    sbdb1 - Physical standby database

Fast-Start Failover: DISABLED

Configuration Status:

DISABLED

##启用配置

DGMGRL> enable configuration;

Enabled.

DGMGRL> show configuration;

Configuration - dgbroker

  Protection Mode: MaxPerformance

  Databases:

    prod1 - Primary database

    sbdb1 - Physical standby database

Fast-Start Failover: DISABLED

Configuration Status:

SUCCESS

DGMGRL> 

备注：所用命令整理

select log_mode,force_logging from v$database;

alter database force logging;

archive log list;

show parameter db_recovery

alter system switch logfile;

alter database add standby logfile group 4 (‘/u01/app/oracle/oradata/PROD1/stlog01.log‘) size 100m;

alter database add standby logfile group 5 (‘/u01/app/oracle/oradata/PROD1/stlog02.log‘) size 100m;

alter database add standby logfile group 6 (‘/u01/app/oracle/oradata/PROD1/stlog03.log‘) size 100m;

alter database add standby logfile group 7 (‘/u01/app/oracle/oradata/PROD1/stlog04.log‘) size 100m;

create pfile from spfile;

$ vi initPROD1.ora 

DB_NAME=PROD1

DB_UNIQUE_NAME=PROD1

LOG_ARCHIVE_CONFIG=‘DG_CONFIG=(PROD1,SBDB1)‘

LOG_ARCHIVE_DEST_1=

 ‘LOCATION=use_db_recovery_file_dest

  VALID_FOR=(ALL_LOGFILES,ALL_ROLES)

  DB_UNIQUE_NAME=PROD1‘

LOG_ARCHIVE_DEST_2=

 ‘SERVICE=SBDB1 ASYNC

  VALID_FOR=(ONLINE_LOGFILES,PRIMARY_ROLE)

  DB_UNIQUE_NAME=SBDB1‘

LOG_ARCHIVE_DEST_STATE_1=ENABLE

LOG_ARCHIVE_DEST_STATE_2=ENABLE

REMOTE_LOGIN_PASSWORDFILE=EXCLUSIVE

LOG_ARCHIVE_FORMAT=%t_%s_%r.arc

FAL_SERVER=SBDB1

DB_FILE_NAME_CONVERT=‘SBDB1‘,‘PROD1‘

LOG_FILE_NAME_CONVERT=‘SBDB1‘,‘PROD1‘

STANDBY_FILE_MANAGEMENT=AUTO

STANDBY_FILE_MANAGEMENT=AUTO

dg_broker_start=true

$ vi ../network/admin/listener.ora 

LISTENER =

  (DESCRIPTION_LIST =

    (DESCRIPTION =

      (ADDRESS = (PROTOCOL = TCP)(HOST = edbjr2p1.example.com)(PORT = 1521))

      (ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1521))

)

)

ADR_BASE_LISTENER = /u01/app/oracle

SID_LIST_LISTENER=

  (SID_LIST=

    (SID_DESC=

      (GLOBAL_DBNAME=PROD1.us.oracle.com)

      (ORACLE_HOME=/u01/app/oracle/product/11.2.0/dbhome_1)

      (SID_NAME=PROD1))

    (SID_DESC=

      (GLOBAL_DBNAME=PROD1_DGMGRL.us.oracle.com)

      (ORACLE_HOME=/u01/app/oracle/product/11.2.0/dbhome_1)

      (SID_NAME=PROD1))

    (SID_DESC=

      (SID_NAME=plsextproc)

      (ORACLE_HOME=/u01/app/oracle/product/11.2.0/dbhome_1)

      (PROGRAM=extproc)))

$ vi ../network/admin/tnsnames.ora 

##添加上如下内容     

SBDB1 =

  (DESCRIPTION =

    (ADDRESS_LIST =

      (ADDRESS = (PROTOCOL = TCP)(HOST = edbjr2p2.example.com)(PORT = 1521))

)

    (CONNECT_DATA =

      (SERVICE_NAME = SBDB1.us.oracle.com)

)

)

scp initPROD1.ora edbjr2p2:/u01/app/oracle/product/11.2.0/db_1/dbs/initSBDB1.ora

scp orapwPROD1 edbjr2p2:/u01/app/oracle/product/11.2.0/db_1/dbs/orapwSBDB1          #口令文件备库不可重建，需用主库的

scp ../network/admin/listener.ora ../network/admin/tnsnames.ora edbjr2p2:/u01/app/oracle/product/11.2.0/db_1/network/admin

create spfile from pfile;

startup

cd /u01/app/oracle/

mkdir -p admin/SBDB1/adump

mkdir -p oradata/SBDB1

mkdir -p /home/oracle/flash

$ cd $ORACLE_HOME/dbs

$ vi initSBDB1.ora 

DB_NAME=PROD1

DB_UNIQUE_NAME=SBDB1

LOG_ARCHIVE_CONFIG=‘DG_CONFIG=(SBDB1,PROD1)‘

LOG_ARCHIVE_DEST_1=

 ‘LOCATION=use_db_recovery_file_dest

  VALID_FOR=(ALL_LOGFILES,ALL_ROLES)

  DB_UNIQUE_NAME=SBDB1‘

LOG_ARCHIVE_DEST_2=

 ‘SERVICE=PROD1 ASYNC

  VALID_FOR=(ONLINE_LOGFILES,PRIMARY_ROLE)

  DB_UNIQUE_NAME=PROD1‘

LOG_ARCHIVE_DEST_STATE_1=ENABLE

LOG_ARCHIVE_DEST_STATE_2=ENABLE

REMOTE_LOGIN_PASSWORDFILE=EXCLUSIVE

LOG_ARCHIVE_FORMAT=%t_%s_%r.arc

FAL_SERVER=PROD1

DB_FILE_NAME_CONVERT=‘PROD1‘,‘SBDB1‘

LOG_FILE_NAME_CONVERT=‘PROD1‘,‘SBDB1‘

STANDBY_FILE_MANAGEMENT=AUTO

STANDBY_FILE_MANAGEMENT=AUTO

dg_broker_start=true

$ vi ../network/admin/listener.ora 

LISTENER =

  (DESCRIPTION_LIST =

    (DESCRIPTION =

      (ADDRESS = (PROTOCOL = TCP)(HOST = edbjr2p2.example.com)(PORT = 1521))

      (ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1521))

)

)

ADR_BASE_LISTENER = /u01/app/oracle

SID_LIST_LISTENER=

  (SID_LIST=

    (SID_DESC=

      (GLOBAL_DBNAME=SBDB1.us.oracle.com)

      (ORACLE_HOME=/u01/app/oracle/product/11.2.0/db_1)

      (SID_NAME=SBDB1))

    (SID_DESC=

      (GLOBAL_DBNAME=SBDB1_DGMGRL.us.oracle.com)

      (ORACLE_HOME=/u01/app/oracle/product/11.2.0/db_1)

      (SID_NAME=SBDB1))

    (SID_DESC=

      (SID_NAME=plsextproc)

      (ORACLE_HOME=/u01/app/oracle/product/11.2.0/db_1)

      (PROGRAM=extproc)))

lsnrctl reload

$ sudo mount -o remount,size=4g /dev/shm

$ rman target / auxiliary sys/[email protected]

DUPLICATE TARGET DATABASE

FOR STANDBY

FROM ACTIVE DATABASE

DORECOVER

NOFILENAMECHECK;

$ dgmgrl sys/[email protected]

help create

CREATE CONFIGURATION dgbroker as PRIMARY DATABASE IS prod1 CONNECT IDENTIFIER IS prod1;

ADD DATABASE sbdb1 AS CONNECT IDENTIFIER IS sbdb1 MAINTAINED AS PHYSICAL;

show configuration;

enable configuration;

##可能用到的命令

create configuration dgbroker as primary database is ‘PROD1‘ connect identifier is ‘PROD1‘;

add database ‘SBDB1‘ as connect identifier is ‘SBDB1‘ maintained as physical;

convert database SBDB1 to SNAPSHOT STANDBY;

alter database recover managed standby database cancel;

ALTER DATABASE RECOVER MANAGED STANDBY DATABASE USING CURRENT LOGFILE DISCONNECT FROM SESSION;  

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