19.3 RAC主庫 到19.3單實例dataguard 搭建
系統環境：
準備：
檢查主庫的force logging
Select inst_id,force_logging from gv$database
Alter database force logging;(修改完立刻生效)
檢查數據庫的歸檔模式
Archive log list;
改歸檔模式
Srvctl stop database -d orcl -o immediate
Srvctl status database -d orcl
Srvctl stop database -d orcl -o mount
Alter database archivelog;
Alter database open;
Archive log list;
修改主庫的註冊信息
Srvctl config database -d orcl -a
Srvctl remove database -d orcl -f
Srvctl add db -d orclpri -c RAC -o $OrACLE_HOME -p $SPFILE -r primary
Srvctl add instance -d orclpri -i orcl1 -n rac01
Srvctl add instance -d orclpri -i orcl2 -n rac02
Srvctl status db -d orclpri
Srvctl start db -d orclpri
Srvctl config db -d orclpri -a
主庫添加standby redo log
Select * from v$log;
Select * from v$standby_log;
添加redolog
Alter database add standby logfile thread 1 group 5 size 200M,group 6 size 200M,group 7 size 200M;
Alter database add standby logfile thread 2 group 8 size 200M,group 9 size 200M,group 10 size 200M;
Set linesize 1000
Col member for a70
Select * from v$logfile;
修改主庫參數文件(修改spfile之前一定要備份)
Alter system set db_unique_name=’orclpri’ scope=spfile sid=’*’;
Alter system set log_archive_config=’DG_CONFIG=(orclpri,orclphy)’ sid=’*’;
Alter system set log_archive_dest_1=’LOCATION=use_DB_RECOVERY_FILE_DEST db_unique_name=orclpri valid_for=(ALL_LOGFILES,ALL_ROLES)’ scope=spfile sid=’*’;
Alter system set log_archive_dest_2=’SERVICE=tns_orclphy LGWR ASYNC db_unique_name=orclphy valid_for(ONLINE_LOGFILES,PRIMARY_ROLE)’ sid=’*’;
Alter system set db_file_name_comvert=’+data’,’+data’ scope=spfile sid=’*’;
Alter system set log_file_name_comvert=’+data’,’+data’ scope=spfile sid=’*’;
Alter system set log_archive_dest_state_1=enable sid=’*’;
Alter system set log_archive_dest_state_2=enable sid=’*’;
Alter system set log_archive_max_processes=4 sid=’*’;
Alter system set remote_login_passwordfile=’EXCLUSIVE’ scope=spfile sid=’*’;
Alter system set standby_file_management=’AUTO’ sid=’*’;
Alter system set fal_server=’orclphy’ sid=’*’;
Alter system set fal_client=’orclpri’ sid=’*’;
配置主庫和備庫的監聽
主庫：未做修改，兩個節點保持一致，監聽文件在grid-home目錄下
LISTENER_SCAN1=(DESCRIPTION=(ADDRESS_LIST=(ADDRESS=(PROTOCOL=IPC)(KEY=LISTENER_SCAN1)))) # line added by Agent
LISTENER=(DESCRIPTION=(ADDRESS_LIST=(ADDRESS=(PROTOCOL=IPC)(KEY=LISTENER)))) # line added by Agent
ASMNET1LSNR_ASM=(DESCRIPTION=(ADDRESS_LIST=(ADDRESS=(PROTOCOL=IPC)(KEY=ASMNET1LSNR_ASM)))) # line added by Agent
ENABLE_GLOBAL_DYNAMIC_ENDPOINT_ASMNET1LSNR_ASM=ON # line added by Agent
VALID_NODE_CHECKING_REGISTRATION_ASMNET1LSNR_ASM=SUBNET # line added by Agent
ENABLE_GLOBAL_DYNAMIC_ENDPOINT_LISTENER=ON # line added by Agent
VALID_NODE_CHECKING_REGISTRATION_LISTENER=SUBNET # line added by Agent
ENABLE_GLOBAL_DYNAMIC_ENDPOINT_LISTENER_SCAN1=ON # line added by Agent
VALID_NODE_CHECKING_REGISTRATION_LISTENER_SCAN1=OFF # line added by Agent - Disabled by Agent because REMOTE_REGISTRATION_ADDRESS is set
備庫
在grid用戶下，可以設置針對DG的監聽器，也可以使用默認的listener監聽器。
#Backup file is /oracle/app/grid/crsdata/orclphy/output/listener.ora.bak.orclphy.grid line added by Agent
# listener.ora Network Configuration File: /oracle/app/12.2.0/grid/product/db_1/network/admin/listener.ora
# Generated by Oracle configuration tools.
LISTENER =
(DESCRIPTION_LIST =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = orclphy)(PORT = 1521))
(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1521))
)
)
SID_LIST_LISTENER =
(SID_LIST =
(SID_DESC =
(GLOBAL_DBNAME = pdb)
(ORACLE_HOME = /oracle/app/oracle/product/12.2.0/db_1)
(SID_NAME = orclphy)
)
(SID_DESC =
(GLOBAL_DBNAME = orclphy)
(ORACLE_HOME = /oracle/app/oracle/product/12.2.0/db_1)
(SID_NAME = orclphy)
)
)
ENABLE_GLOBAL_DYNAMIC_ENDPOINT_LISTENER=ON # line added by Agent
VALID_NODE_CHECKING_REGISTRATION_LISTENER=ON # line added by Agent
配置主庫和備庫的tnsname.ora
Vi $ORACLE_HOME/network/admin/tnsnames.ora
Vi $GRID_HOME/network/admin/tnsnames.ora
注意：tns文件是在oracle用戶下配置，但是也需要將oracle用戶下的tns文件的內容同步更新的grid用戶下，內容如下
orclpri =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP) (HOST = scan) (PORT = 1521))
(CONNECT_DATA =
(SERVER = DEDICATED)
(SERVICE_NAME = orclpri)
)
)
orclphy =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP) (HOST = scan) (PORT = 1521))
(ADDRESS = (PROTOCOL = TCP) (HOST = 192.168.1.13) (PORT = 1521))
(CONNECT_DATA =
(SERVER = DEDICATED)
(SERVICE_NAME = orclphy)
)
)
在節點cehsi
Tnsping orcipri
Tbsping orclphy
配置主庫的密碼文件，三個節點的密碼文件密碼保持一致
Orapwd file=orapwrac01 password=ziqiyuan format=12 force=y
Orapwd file=orapwrac02 password=ziqiyuan format=12 force=y
Orapwd file=orapworclphy password=ziqiyuan format=12 force=y
啓動備份庫到nomount狀態
export ORACLE_SID=orclphy
echo ‘db_name=orcl’ >$ORACLE_HOME/dbs/initorclphy.ora
Sqlplus / as sysdba
Startup nomount pfile=$ORACLE_HOME/dbs/initorclphy.ora
Rman target database sys/ziqiyuan@orclpri auxiliary database sys/ziqiyuan@orclphy
duplicate target database for standby nofilenamecheck from active database dorecover spfile
set db_unique_name='orclphy'
set log_archive_dest_1='LOCATION=+data valid_for=(all_logfiles,all_roles) db_unique_name=orclphy'
set log_archive_dest_2='service=tns_orclpri async lgwr register valid_for=(online_logfile,primary_role) db_unique_name=orclpri'
set fal_server='tns_orclpri'
set fal_client='tns_orclphy'
set control_files='+data','+data'
set db_file_name_convert='+data','+data'
set memory_target='2500m'
set audit_file_dest='/oracle/app/oracle/admin/orcl/adump'
set db_create_file_dest = '+data'
set cluster_database='false'
set log_file_name_convert='+data','+data'
set standby_file_management='AUTO';
複製完成後修改pfile參數 將集羣參數刪除(thread,undotablespace,sid)
srvctl add database -db orclphy -dbname orcl -o /oracle/app/oracle/product/12.2.0/db_1 -p '/oracle/app/oracle/product/12.2.0/db_1/dbs/spfileorclphy.ora' -r physical_standby
啓動備庫
執行實時同步腳本
SQL>Alter database recover managed standby database using current logfile disconnect;
主庫操作：
SQL> alter session set container=pdb;
Session altered.
SQL>
SQL> alter database open;
Database altered.
SQL>
SQL> select * from haha;
ID
----------
9
19
9
SQL> insert into haha values(1);
1 row created.
SQL> commit;
Commit complete.
備庫查看同步情況
SQL> show pdbs
CON_ID CON_NAME OPEN MODE RESTRICTED
---------- ------------------------------ ---------- ----------
2 PDB$SEED READ ONLY NO
3 PDB MOUNTED
SQL> alter session set container=pdb;
Session altered.
SQL> alter database open;
Database altered.
SQL> select * from haha;
ID
----------
9
1
19
9