페이지 이력

버전 비교

키

이 줄이 추가되었습니다.
이 줄이 삭제되었습니다.
서식이 변경되었습니다.

Switchover

Standby로 switchover

Primary에 DGMGRL로 접속

코드 블럭

language	bash
title	DGMGRL로 primary DB에 접속
linenumbers	true

dgmgrl sys/oracle@ORCL

펼치기

서식 미적용

[oracle@orcl ~]$ dgmgrl sys/oracle@ORCL
DGMGRL for Linux: Release 18.0.0.0.0 - Production on Mon Sep 10 15:41:25 2018
Version 18.3.0.0.0

Copyright (c) 1982, 2018, Oracle and/or its affiliates.  All rights reserved.

Welcome to DGMGRL, type "help" for information.
Connected to "ORCL"
Connected as SYSDBA.

Standby로 switchover

코드 블럭

title	Standby로 switchover 수행
linenumbers	true

SWITCHOVER TO orcl_stb;

펼치기

서식 미적용

DGMGRL> SWITCHOVER TO orcl_stb;
Performing switchover NOW, please wait...
Operation requires a connection to database "orcl_stb"
Connecting ...
Connected to "ORCL_STB"
Connected as SYSDBA.
New primary database "orcl_stb" is opening...
Operation requires start up of instance "orcl" on database "orcl"
Starting instance "orcl"...
Connected to an idle instance.
ORACLE instance started.
Database mounted.
Connected to "ORCL"
Switchover succeeded, new primary is "orcl_stb"

Switchover 결과 확인

코드 블럭

title	Switchover 결과 확인
linenumbers	true

SHOW CONFIGURATION;
SHOW DATABASE orcl;
SHOW DATABASE orcl_stb;

펼치기

서식 미적용

DGMGRL> SHOW CONFIGURATION;

Configuration - dg_orcl

  Protection Mode: MaxPerformance
  Members:
  orcl_stb - Primary database
    orcl     - Physical standby database

Fast-Start Failover: DISABLED

Configuration Status:
SUCCESS   (status updated 77 seconds ago)

DGMGRL> SHOW DATABASE orcl;

Database - orcl

  Role:               PHYSICAL STANDBY
  Intended State:     APPLY-ON
  Transport Lag:      0 seconds (computed 1 second ago)
  Apply Lag:          0 seconds (computed 1 second ago)
  Average Apply Rate: 210.00 KByte/s
  Real Time Query:    OFF
  Instance(s):
    orcl

Database Status:
SUCCESS

DGMGRL> SHOW DATABASE orcl_stb;

Database - orcl_stb

  Role:               PRIMARY
  Intended State:     TRANSPORT-ON
  Instance(s):
    orcl

Database Status:
SUCCESS

Switchover 후 데이터베이스 상태 확인

코드 블럭

title	Primary DB와 Standby DB에서 수행
linenumbers	true

SELECT instancedb_unique_name, status FROM v$instance;
SELECT db_unique_nameopen_mode, database_role, switchover_status, dataguard_broker FROM v$database;

펼치기

서식 미적용

SQL> SELECT instancedb_unique_name, status FROM v$instance;

INSTANCE_NAME    STATUS
---------------- ------------
orcl             MOUNTED

SQL> SELECT db_unique_nameopen_mode, database_role, switchover_status, dataguard_broker FROM v$database;

DB_UNIQUE_NAME                 OPEN_MODE            DATABASE_ROLE    SWITCHOVER_STATUS    DATAGUAR
------------------------------ -------------------- ---------------- ------------ --------
ORCL                           PRIMARYMOUNTED          TO STANDBY   PHYSICAL STANDBY       ENABLEDNOT ALLOWED

서식 미적용

SQL> SELECT instancedb_unique_name, open_mode, database_role, switchover_status FROM v$instancev$database;

INSTANCEDB_UNIQUE_NAME    STATUS
---------------- ------------
orcl             OPEN

SQL> SELECT db_unique_name, database_role, switchover_status, dataguard_broker FROM v$database;

DB_UNIQUE_NAME     _MODE            DATABASE_ROLE    SWITCHOVER_STATUS    DATAGUAR
------------------------------ -------------------- ---------------- ---------- ----------
ORCL_STB                       READ PRIMARYWRITE          TO STANDBYPRIMARY          TO ENABLEDSTANDBY

Primary로 복원

Standby에 DGMGRL로 접속

코드 블럭

language	bash
title	DGMGRL로 standby DB에 접속
linenumbers	true

dgmgrl sys/oracle@ORCL_STB

펼치기

서식 미적용

[oracle@orcl ~]$ dgmgrl sys/oracle@ORCL_STB
DGMGRL for Linux: Release 18.0.0.0.0 - Production on Mon Sep 10 15:54:25 2018
Version 18.3.0.0.0

Copyright (c) 1982, 2018, Oracle and/or its affiliates.  All rights reserved.

Welcome to DGMGRL, type "help" for information.
Connected to "ORCL_STB"
Connected as SYSDBA.

Primary로 switchover

코드 블럭

title	Primary로 switchover 수행
linenumbers	true

SWITCHOVER TO orcl;

펼치기

서식 미적용

DGMGRL> SWITCHOVER TO orcl;
Performing switchover NOW, please wait...
Operation requires a connection to database "orcl"
Connecting ...
Connected to "ORCL"
Connected as SYSDBA.
New primary database "orcl" is opening...
Operation requires start up of instance "orcl" on database "orcl_stb"
Starting instance "orcl"...
Connected to an idle instance.
ORACLE instance started.
Database mounted.
Connected to "ORCL_STB"
Switchover succeeded, new primary is "orcl"

복원 결과 확인

코드 블럭

title	복원 결과 확인
linenumbers	true

SHOW CONFIGURATION;
SHOW DATABASE orcl;
SHOW DATABASE orcl_stb;

펼치기

서식 미적용

DGMGRL> SHOW CONFIGURATION;

Configuration - dg_orcl

  Protection Mode: MaxPerformance
  Members:
  orcl     - Primary database
    orcl_stb - Physical standby database

Fast-Start Failover: DISABLED

Configuration Status:
SUCCESS   (status updated 71 seconds ago)

DGMGRL> SHOW DATABASE orcl;

Database - orcl

  Role:               PRIMARY
  Intended State:     TRANSPORT-ON
  Instance(s):
    orcl

Database Status:
SUCCESS

DGMGRL> SHOW DATABASE orcl_stb;

Database - orcl_stb

  Role:               PHYSICAL STANDBY
  Intended State:     APPLY-ON
  Transport Lag:      0 seconds (computed 0 seconds ago)
  Apply Lag:          0 seconds (computed 0 seconds ago)
  Average Apply Rate: 386.00 KByte/s
  Real Time Query:    OFF
  Instance(s):
    orcl

Database Status:
SUCCESS

복원 후 데이터베이스 상태 확인

코드 블럭

title	Primary DB와 Standby DB에서 수행
linenumbers	true

SELECT instancedb_unique_name, status FROM v$instance;
SELECT db_unique_nameopen_mode, database_role, switchover_status, dataguard_broker FROM v$database;

펼치기

서식 미적용

SQL> SELECT instancedb_unique_name, open_mode, database_role, switchover_status FROM v$instancev$database;

INSTANCEDB_UNIQUE_NAME    STATUS
---------------- ------------
orcl             OPEN

SQL>_MODE SELECT name, database_role, switchover_status, dataguard_broker FROM v$database;

NAME      DATABASE_ROLE    SWITCHOVER_STATUS    DATAGUAR

------------------------------ -------------------- ---------------- ------------ --------
ORCL      PRIMARY          TO STANDBY          READ ENABLED

서식 미적용

SQL>WRITE SELECT instance_name, status FROM v$instance;

INSTANCE_NAME    STATUS
---------------- ------------
orcl  PRIMARY           MOUNTED

TO STANDBY

서식 미적용

SQL> SELECT db_unique_name, open_mode, database_role, switchover_status, dataguard_broker FROM v$database;

DB_UNIQUE_NAME                 OPEN_MODE            DATABASE_ROLE    SWITCHOVER_STATUS    DATAGUAR

------------------------------ -------------------- ---------------- ---------- ----------
ORCL_STB                       MOUNTED PHYSICAL    STANDBY NOT ALLOWED       PHYSICAL STANDBY NOT ENABLEDALLOWED

Content

공간 도구

버전 비교

이전 버전 2

새 버전 3

키

Switchover

Standby로 switchover

Primary에 DGMGRL로 접속

Standby로 switchover

Switchover 결과 확인

Switchover 후 데이터베이스 상태 확인

Primary로 복원

Standby에 DGMGRL로 접속

Primary로 switchover

복원 결과 확인

복원 후 데이터베이스 상태 확인