Oracle12C單實(shí)例dataguard配置

Oracle用戶環(huán)境變量配置：

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ORACLE_BASE=/orcl/app/oracle

ORACLE_HOME=$ORACLE_BASE/product/12.2.0/db_1

ORACLE_SID=orcl

export ORACLE_BASE ORACLE_HOME ORACLE_SID

PATH=$ORACLE_HOME/bin:$PATH

export PATH

export NLS_LANG=american_america.AL32UTF8

主庫:

1. 將primary數(shù)據(jù)庫設(shè)置為force logging模式

select force_logging from v$database;

alter database force logging;

2. 創(chuàng)建密碼文件(如果沒有)

orapwd file=$ORACLE_HOME/dbs/orapworcl password=syspassword entries=30;

3. 將主庫至于歸檔模式

shutdown immediate;

startup mount;

alter database archivelog;

alter database open;

4. disabled selinux

cat /etc/selinux/config | grep 'SELINUX'

5. 配置standby redo log

select GROUP#,BYTES/1024/1024 size_M,STATUS,ARCHIVED from v$log; # 查詢當(dāng)前日志組大小

alter database add standby logfile group 4 ('/orcl/app/oracle/oradata/orcl/standbyrd01.log') size 200M;

alter database add standby logfile group 5 ('/orcl/app/oracle/oradata/orcl/standbyrd02.log') size 200M;

alter database add standby logfile group 6 ('/orcl/app/oracle/oradata/orcl/standbyrd03.log') size 200M;

alter database add standby logfile group 7 ('/orcl/app/oracle/oradata/orcl/standbyrd04.log') size 200M;

alter database drop standby logfile group 4; # 刪除

select group#,thread#,sequence#,archived,status from v$standby_log; # 驗(yàn)證

6. 生成控制文件

alter database create standby controlfile as '/orcl/app/oracle/oradata/orcl/orcldg01.ctl';

7. 生成初始化參數(shù)文件

create pfile from spfile;

vi $ORACLE_HOME/dbs/initorcl.ora（添加以下內(nèi)容）

*.log_file_name_convert='/orcl/app/oracle/oradata/orcl/','/orcl/app/oracle/oradata/orcl/'

*.db_unique_name='orcl1'

*.fal_client='orcl1'

*.fal_server='orcldg'

*.log_archive_config='DG_CONFIG=(orcl1,orcldg)'

*.log_archive_dest_1='LOCATION=/orcl/app/oracle/oradata/orcl/ VALID_FOR=(ALL_LOGFILES,ALL_ROLES) DB_UNIQUE_NAME=orcl1'

*.log_archive_dest_2='SERVICE=orcldg LGWR ASYNC VALID_FOR=(ALL_LOGFILES,PRIMARY_ROLES) DB_UNIQUE_NAME=orcldg'

*.log_archive_dest_state_1='ENABLE'

*.log_archive_dest_state_2='ENABLE'

*.standby_file_management='AUTO'

*.remote_login_passwordfile='EXCLUSIVE'

*.log_archive_format=%t_%s_%r.arc

create spfile from pfile='initorcl.ora'

8. 修改listener.ora文件

LISTENER =

(DESCRIPTION_LIST =

(DESCRIPTION =

(ADDRESS = (PROTOCOL = TCP)(HOST = nginx01)(PORT = 1521))

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

)

SID_LIST_LISTENER =

(SID_LIST =

(SID_DESC =

(GLOBAL_DBNAME = orcl)

(SID_NAME = orcl)

)

ADR_BASE_LISTENER=/orcl/app/oracle

9. 修改tnsnames.ora文件

ORCL =

(DESCRIPTION =

(ADDRESS = (PROTOCOL = TCP)(HOST = nginx01)(PORT = 1521))

(CONNECT_DATA =

(SERVER = DEDICATED)

(SERVICE_NAME = orcl)

)

ORCLDG =

(DESCRIPTION =

(ADDRESS = (PROTOCOL = TCP)(HOST = nginx01-dg)(PORT = 1521))

(CONNECT_DATA =

(SERVER = DEDICATED)

(SERVICE_NAME = orcldg)

)

10. shutdown immediate

11. 傳輸控制文件、初始化參數(shù)文件、監(jiān)聽文件、密碼文件到備機(jī)

cd /orcl/app/oracle/product/12.2.0/db_1/network/admin

scp listener.ora nginx01-dg:/orcl/app/oracle/product/12.2.0/db_1/network/admin

scp tnsnames.ora nginx01-dg:/orcl/app/oracle/product/12.2.0/db_1/network/admin

scp sqlnet.ora nginx01-dg:/orcl/app/oracle/product/12.2.0/db_1/network/admin

cd /orcl/app/oracle/oradata/orcl

scp orcldg01.ctl nginx01-dg:/orcl/app/oracle/oradata/orcl/

cd /orcl/app/oracle/product/12.2.0/db_1/dbs

scp initorcl.ora nginx01-dg:/orcl/app/oracle/product/12.2.0/db_1/dbs/initorcl.ora

scp orapworcl nginx01-dg:/orcl/app/oracle/product/12.2.0/db_1/dbs/orapworcl

12. 在主庫上RMAN備份恢復(fù)到standby：

1. 主庫啟動到mount狀態(tài)，備庫啟動到nomount狀態(tài)

2. rman target sys/abcd1234@orcl auxiliary sys/abcd1234@orcldg

3. duplicate target database for standby nofilenamecheck from active database; # 主備機(jī)目錄一致使用nofilenamecheck參數(shù)

備庫：

1. disabled selinux

cat /etc/selinux/config | grep 'SELINUX'

2. 創(chuàng)建目錄

mkdir -p /orcl/app/oracle/oradata/orcl/

mkdir -p /orcl/app/oracle/admin/orcl/adump

3. 修改主庫傳過來的初始化參數(shù)文件initorcl.ora文件

*.control_files='/orcl/app/oracle/oradata/orcl/orcldg01.ctl','/orcl/app/oracle/oradata/orcl/orcldg02.ctl'

*.log_file_name_convert='/orcl/app/oracle/oradata/orcl/','/orcl/app/oracle/oradata/orcl/'

*.db_unique_name='orcldg'

*.fal_client='orcldg'

*.fal_server='orcl1'

*.log_archive_config='DG_CONFIG=(orcl1,orcldg)'

*.log_archive_dest_1='LOCATION=/orcl/app/oracle/oradata/orcl/ VALID_FOR=(ALL_LOGFILES,ALL_ROLES) DB_UNIQUE_NAME=orcldg'

*.log_archive_dest_2='SERVICE=orcl1 LGWR ASYNC VALID_FOR=(ALL_LOGFILES,PRIMARY_ROLES) DB_UNIQUE_NAME=orcl1'

*.log_archive_dest_state_1='ENABLE'

*.log_archive_dest_state_2='ENABLE'

*.standby_file_management='AUTO'

*.log_archive_format=%t_%s_%r.arc

*.remote_login_passwordfile='EXCLUSIVE

4. listener.ora和tnsnames.ora文件不用做任何修改

5. 啟動（rman備份恢復(fù)完成后）

alter database mount standby database;

alter database open read only;

alter database recover managed standby database disconnect from session;

alter database set standby database to maximize availability;

6. 查詢驗(yàn)證

select switchover_status,open_mode,database_role,db_unique_name,protection_mode,protection_level from v$database;

select SEQUENCE#,FIRST_TIME,NEXT_TIME ,APPLIED from v$archived_log order by 1;

select max(sequence#) from v$log;

7. 關(guān)機(jī)

alter database recover managed standby database cancel;

shutdown immediate;

本文名稱：Oracle12C單實(shí)例dataguard配置
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