RHEL 7.6 安装oracle database 18c dataguard on ASM Part1: 基础环境配置
RHEL 7.6 安装oracle database 18c dataguard on ASM Part2: Grid Infrastructure配置
RHEL 7.6 安装oracle database 18c dataguard on ASM Part3: Database配置
8 DataGuard配置
| Database | DB_UNIQUE_NAME | Oracle Net Service Name |
| Primary | eighteenc | eighteenc |
| Physical standby | dg | dg |
[root@node ~]# more /etc/hosts10.6.0.137 node
10.6.0.138 nodedg
主库启动到force logging
set line 188
col name for a20
col open_mode for a20
select name,open_mode from v$pdbs;col force_logging for a20
select force_logging from v$database;alter database force logging;
启动归档模式
show con_namearchive log list;show parameter recovery;
主库添加standby redo logfile
Oracle 12c开始，online redo log 和控制文件是保存在CDB中的，PDB中只有运行需要的数据文件，所以我们这里加standby redo log，也是在CDB中加。
查看 Primary 库的 REDO 相关信息：
show con_nameselect group#, members, bytes/1024/1204 file_MB from v$log;select member from v$logfile;
添加 4(3+1)个standby logfile：
alter database add standby logfile '+DATA/EIGHTEENC/stdredo01.log' size 200M;
alter database add standby logfile '+DATA/EIGHTEENC/stdredo02.log' size 200M;
alter database add standby logfile '+DATA/EIGHTEENC/stdredo03.log' size 200M;
alter database add standby logfile '+DATA/EIGHTEENC/stdredo04.log' size 200M;
配置监听
主库
EIGHTEENC =(DESCRIPTION_LIST =(DESCRIPTION =(ADDRESS = (PROTOCOL = TCP)(HOST = node)(PORT = 1521))(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1521))))ENABLE_GLOBAL_DYNAMIC_ENDPOINT_LISTENER=ON # line added by Agent
VALID_NODE_CHECKING_REGISTRATION_LISTENER=ON # line added by Agent
备库
vi /app/grid/product/18.3.0/crs/network/admin/listener.ora
#Backup file is /app/grid/product/18.3.0/crs/srvm/admin/listener.ora.bak.nodedg line added by Agent
# listener.ora Network Configuration File: /app/grid/product/18.3.0/crs/network/admin/listener.ora
# Generated by Oracle configuration tools.#LISTENER =
# (DESCRIPTION_LIST =
# (DESCRIPTION =
# (ADDRESS = (PROTOCOL = TCP)(HOST = nodedg)(PORT = 1521))
# (ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1521))
# )
# )NODEDG =(DESCRIPTION_LIST =(DESCRIPTION =(ADDRESS = (PROTOCOL = TCP)(HOST = nodedg)(PORT = 1522))))ADR_BASE_LMIS = /app/oracleSID_LIST_NODEDG =(SID_LIST =(SID_DESC =(GLOBAL_DBNAME = eighteen)(ORACLE_HOME = /app/oracle/product/18.3.0/dbhome_1)(SID_NAME = dg)))#ENABLE_GLOBAL_DYNAMIC_ENDPOINT_LISTENER=ON # line added by Agent
#VALID_NODE_CHECKING_REGISTRATION_LISTENER=ON # line added by Agent主备库配置tnsnames文件
eighteenc =(DESCRIPTION =(ADDRESS_LIST =(ADDRESS = (PROTOCOL = TCP)(HOST = 10.6.0.137)(PORT = 1521)))(CONNECT_DATA =(SERVICE_NAME = eighteenc)))dg =(DESCRIPTION =(ADDRESS_LIST =(ADDRESS = (PROTOCOL = TCP)(HOST = 10.6.0.138)(PORT = 1521)))(CONNECT_DATA =(SERVICE_NAME = dg)(RU=A)))nodedg =(DESCRIPTION =(ADDRESS_LIST =(ADDRESS = (PROTOCOL = TCP)(HOST = 10.6.0.138)(PORT = 1522)))(CONNECT_DATA =(SERVICE_NAME = eighteen)(RU=A)))
重新装载监听配置文件
lsnrctl reload备库创建必要的目录
mkdir -p /app/oracle/admin/dg/adump
主库创建pfile 文件并修改pfile 内容
create pfile from spfile;主库配置initeighteenc.ora，添加下面内容
#add for primary dg
*.db_name='eighteen'
*.db_unique_name='eighteenc'
*.log_archive_config='dg_config=(eighteenc,dg)'
*.log_archive_dest_1='location=USE_DB_RECOVERY_FILE_DEST valid_for=(all_logfiles,all_roles) db_unique_name=eighteenc'
*.log_archive_dest_2='service=dg valid_for=(online_logfiles,primary_role) lgwr affirm sync db_unique_name=dg'
*.log_archive_dest_state_1=enable
*.log_archive_dest_state_2=enable
*.standby_file_management='auto'
*.fal_server='dg'
*.DB_FILE_NAME_CONVERT='eighteenc','dg'
*.LOG_FILE_NAME_CONVERT='eighteenc','dg'
*.dispatchers='(PROTOCOL=TCP) (SERVICE=eighteencXDB)'重启主库
shutdown immediate;startup pfile ='/app/oracle/product/18.3.0/dbhome_1/dbs/initeighteenc.ora';create spfile from pfile;
参数文件，密码文件copy至备库
scp -r /app/oracle/product/18.3.0/dbhome_1/dbs/initeighteenc.ora oracle@nodedg:/app/oracle/product/18.3.0/dbhome_1/dbs/initdg.orascp -r /app/oracle/product/18.3.0/dbhome_1/dbs/orapweighteenc oracle@nodedg:/app/oracle/product/18.3.0/dbhome_1/dbs/orapwdg配置备库initdg.ora，添加下面内容
#add for standby dg
*.db_name='eighteen'
*.db_unique_name='dg'
*.log_archive_config='dg_config=(eighteenc,dg)'
*.log_archive_dest_1='location=USE_DB_RECOVERY_FILE_DEST valid_for=(all_logfiles,all_roles) db_unique_name=dg'
*.log_archive_dest_2='service=eighteenc valid_for=(online_logfiles,primary_role) lgwr affirm sync db_unique_name=eighteenc'
*.log_archive_dest_state_1=enable
*.log_archive_dest_state_2=enable
*.standby_file_management='auto'
*.fal_server='eighteenc'
*.DB_FILE_NAME_CONVERT='eighteenc','dg'
*.LOG_FILE_NAME_CONVERT='eighteenc','dg'#主备库sid不同进行配置调整
*.dispatchers='(PROTOCOL=TCP) (SERVICE=dgXDB)'
*.audit_file_dest='/app/oracle/admin/dg/adump'
*.control_files='+DATA/DG/control01.ctl','+DATA/DG/control02.ctl'启动备库至nomount
startup nomount pfile='/app/oracle/product/18.3.0/dbhome_1/dbs/initdg.ora';create spfile from pfile;
开始进行Active duplicate
#链接主备库
rman target sys/oracle@eighteenc auxiliary sys/oracle@nodedg#构建DG
duplicate target database for standby from active database nofilenamecheck dorecover;
注：主备库ASM的目录需要一致，备库不存在需要手动创建
打开备库、应用apply
col name for a15
col open_mode for a10
col database_role for a18
col db_unique_name for a15
col cdb for a10
select name,open_mode,database_role,db_unique_name,cdb from v$database;
查看PDB状态
select con_id,dbid,con_uid,name,open_mode,restricted from v$pdbs;
打开备库
#打开备库
alter database open;#查看PDB
show pdbs;#打开扩展库
alter pluggable database pdb01 open;
查看PDB service状态
set lines 100
col name format a20
col network_name format a20
col pdb format a20
select service_id,name,network_name,global_service,pdb,enabled from dba_services;
查看主备库状态
启动real-time apply
alter database recover managed standby database using current logfile disconnect from session;验证日志应用
SELECT SEQUENCE#, FIRST_TIME, NEXT_TIME, APPLIED FROM V$ARCHIVED_LOG ORDER BY SEQUENCE#;
