Oracle教程FG372-PDB DataGuard

本文档风哥主要介绍Oracle数据库PDB DataGuard相关知识，包括PDB DataGuard的概念、方法、要求、规划、配置、验证等内容，由风哥教程参考Oracle官方文档Multitenant内容编写，适合DBA人员在学习和测试中使用，如果要应用于生产环境则需要自行确认。

Part01-基础概念与理论知识

1.1 PDB DataGuard的概念

Oracle数据库PDB DataGuard是指在多租户容器数据库（CDB）中为PDB配置DataGuard，实现数据保护和灾难恢复。PDB DataGuard可以实现数据的实时复制、故障切换、读写分离等功能，提高数据库的可用性和可靠性。PDB DataGuard包括主库、备库、日志传输、日志应用等组件。更多视频教程www.fgedu.net.cn

PDB DataGuard的特点：

支持PDB级别的DataGuard
支持实时数据复制
支持故障切换
支持读写分离
提高数据库可用性和可靠性

1.2 PDB DataGuard的方法

Oracle数据库PDB DataGuard的方法：

物理DataGuard：使用物理DataGuard进行PDB数据保护
逻辑DataGuard：使用逻辑DataGuard进行PDB数据保护
最大保护模式：最高级别的数据保护
最大可用性模式：平衡数据保护和可用性
最大性能模式：最高性能的数据保护

1.3 PDB DataGuard的要求

Oracle数据库PDB DataGuard的要求：

CDB架构：必须在CDB架构中配置DataGuard
系统资源：足够的CPU、内存和磁盘空间
权限：需要SYSDBA权限
兼容性：Oracle数据库版本必须支持PDB DataGuard
配置：需要配置适当的参数和选项

风哥提示：PDB DataGuard是Oracle数据库多租户架构的核心功能，通过PDB DataGuard，可以实现数据保护和灾难恢复，提高数据库的可用性和可靠性。

Part02-生产环境规划与建议

2.1 PDB DataGuard规划

Oracle数据库PDB DataGuard规划要点：

# PDB DataGuard规划步骤
1. 分析业务需求
2. 评估系统资源
3. 设计DataGuard方案
4. 规划DataGuard架构
5. 规划网络配置
6. 规划日志传输
7. 测试和验证

# 适用场景
– 多租户数据库
– 需要数据保护的系统
– 需要灾难恢复的系统
– 需要读写分离的系统
– 需要高可用的系统

# 不适用场景
– 单租户数据库
– 数据保护需求简单的系统
– 低可用性需求系统

2.2 PDB DataGuard设计

Oracle数据库PDB DataGuard设计建议：

# PDB DataGuard设计原则
– 基于业务需求设计
– 基于资源需求设计
– 最小化数据丢失
– 最大化可用性
– 合理配置参数

# PDB DataGuard设计策略
– 合理规划DataGuard架构
– 配置适当的保护模式
– 配置适当的日志传输
– 配置适当的故障切换
– 配置适当的监控告警

# 设计步骤
1. 分析业务需求
2. 评估系统资源
3. 设计DataGuard方案
4. 规划DataGuard架构
5. 测试DataGuard效果
6. 调整配置

2.3 PDB DataGuard最佳实践

Oracle数据库PDB DataGuard最佳实践：

规划DataGuard架构：根据业务需求规划DataGuard架构，最小化数据丢失
配置保护模式：为PDB配置合理的保护模式
监控日志传输：监控日志传输情况，及时发现和处理问题
定期测试切换：定期测试故障切换功能，确保系统可用
设置监控告警：设置监控告警，及时发现DataGuard问题
定期review：定期review DataGuard配置，优化保护策略

生产环境建议：PDB DataGuard规划应基于业务需求和系统资源，规划DataGuard架构，配置保护模式，监控日志传输，定期测试切换，设置监控告警，定期review，确保数据安全。学习交流加群风哥微信: itpux-com

Part03-生产环境项目实施方案

3.1 PDB DataGuard实施

3.1.1 配置主库

# 查看CDB
SQL> SELECT name, db_unique_name, open_mode, database_role FROM v$database;

NAME DB_UNIQUE_NAME OPEN_MODE DATABASE_ROLE
——— —————– ————– —————-
ORCLCDB ORCLCDB READ WRITE PRIMARY

# 查看PDB
SQL> SELECT con_id, name, open_mode FROM v$pdbs ORDER BY con_id;

CON_ID NAME OPEN_MODE
—— ——— ———-
2 PDB$SEED READ ONLY
3 SALESPDB READ WRITE
4 HRPDB READ WRITE
5 APP_ROOT READ WRITE
6 APP_PDB1 READ WRITE

# 配置归档模式
SQL> SHUTDOWN IMMEDIATE;

Database closed.
Database dismounted.
ORACLE instance shut down.

SQL> STARTUP MOUNT;

ORACLE instance started.

Total System Global Area 838860800 bytes
Fixed Size 9140416 bytes
Variable Size 503316480 bytes
Database Buffers 318767104 bytes
Redo Buffers 7737600 bytes
Database mounted.

SQL> ALTER DATABASE ARCHIVELOG;

Database altered.

SQL> ALTER DATABASE OPEN;

Database altered.

SQL> ARCHIVE LOG LIST;

Database log mode Archive Mode
Automatic archival Enabled
Archive destination USE_DB_RECOVERY_FILE_DEST
Oldest online log sequence 1
Next log sequence to archive 2
Current log sequence 2

# 配置强制日志
SQL> ALTER DATABASE FORCE LOGGING;

Database altered.

SQL> SELECT force_logging FROM v$database;

FORCE_LOGGING
————-
YES

# 配置Standby Redo Log
SQL> ALTER DATABASE ADD STANDBY LOGFILE THREAD 1 GROUP 11 SIZE 50M;

Database altered.

SQL> ALTER DATABASE ADD STANDBY LOGFILE THREAD 1 GROUP 12 SIZE 50M;

Database altered.

SQL> ALTER DATABASE ADD STANDBY LOGFILE THREAD 1 GROUP 13 SIZE 50M;

Database altered.

SQL> ALTER DATABASE ADD STANDBY LOGFILE THREAD 1 GROUP 14 SIZE 50M;

Database altered.

# 查看Standby Redo Log
SQL> SELECT group#, type, member FROM v$logfile ORDER BY group#;

GROUP# TYPE MEMBER
—— ——- ————————————————
1 ONLINE /oracle/app/oracle/oradata/orclcdb/redo01.log
2 ONLINE /oracle/app/oracle/oradata/orclcdb/redo02.log
3 ONLINE /oracle/app/oracle/oradata/orclcdb/redo03.log
11 STANDBY /oracle/app/oracle/oradata/orclcdb/stdby_redo11.log
12 STANDBY /oracle/app/oracle/oradata/orclcdb/stdby_redo12.log
13 STANDBY /oracle/app/oracle/oradata/orclcdb/stdby_redo13.log
14 STANDBY /oracle/app/oracle/oradata/orclcdb/stdby_redo14.log

# 验证主库配置成功

3.1.2 配置备库

# 在备库服务器上创建CDB
$ dbca -silent -createDatabase \
-templateName General_Purpose.dbc \
-gdbName ORCLCDB \
-sid ORCLCDB \
-sysPassword Oracle123 \
-systemPassword Oracle123 \
-datafileDestination /oracle/app/oracle/oradata \
-storageType FS \
-characterSet AL32UTF8 \
-nationalCharacterSet AL16UTF16 \
-sampleSchema false \
-memoryPercentage 40 \
-databaseType MULTIPURPOSE \
-emConfiguration NONE \
-createAsContainerDatabase true

Copying database files
1% complete
…
100% complete

Database creation complete.

# 连接到备库
$ sqlplus / as sysdba

SQL*Plus: Release 19.0.0.0.0 – Production on Fri Mar 31 10:00:00 2026
Version 19.3.0.0.0

Connected to:
Oracle Database 19c Enterprise Edition Release 19.0.0.0.0 – Production
Version 19.3.0.0.0

# 配置备库参数
SQL> ALTER SYSTEM SET DB_UNIQUE_NAME = ‘ORCLCDB_STBY’ SCOPE = SPFILE;

System altered.

SQL> ALTER SYSTEM SET LOG_ARCHIVE_CONFIG = ‘DG_CONFIG=(ORCLCDB,ORCLCDB_STBY)’ SCOPE = BOTH;

System altered.

SQL> ALTER SYSTEM SET LOG_ARCHIVE_DEST_1 = ‘LOCATION=USE_DB_RECOVERY_FILE_DEST VALID_FOR=(ALL_LOGFILES,ALL_ROLES) DB_UNIQUE_NAME=ORCLCDB_STBY’ SCOPE = BOTH;

System altered.

SQL> ALTER SYSTEM SET LOG_ARCHIVE_DEST_2 = ‘SERVICE=ORCLCDB LGWR ASYNC VALID_FOR=(ONLINE_LOGFILES,PRIMARY_ROLE) DB_UNIQUE_NAME=ORCLCDB’ SCOPE = BOTH;

System altered.

SQL> ALTER SYSTEM SET LOG_ARCHIVE_DEST_STATE_1 = ENABLE SCOPE = BOTH;

System altered.

SQL> ALTER SYSTEM SET LOG_ARCHIVE_DEST_STATE_2 = ENABLE SCOPE = BOTH;

System altered.

SQL> ALTER SYSTEM SET FAL_SERVER = ‘ORCLCDB’ SCOPE = BOTH;

System altered.

SQL> ALTER SYSTEM SET FAL_CLIENT = ‘ORCLCDB_STBY’ SCOPE = BOTH;

System altered.

SQL> ALTER SYSTEM SET STANDBY_FILE_MANAGEMENT = AUTO SCOPE = BOTH;

System altered.

# 验证备库配置成功

3.2 PDB DataGuard配置

3.2.1 配置主库参数

# 连接到主库
$ sqlplus / as sysdba

SQL*Plus: Release 19.0.0.0.0 – Production on Fri Mar 31 10:00:00 2026
Version 19.3.0.0.0

Connected to:
Oracle Database 19c Enterprise Edition Release 19.0.0.0.0 – Production
Version 19.3.0.0.0

# 配置主库参数
SQL> ALTER SYSTEM SET LOG_ARCHIVE_CONFIG = ‘DG_CONFIG=(ORCLCDB,ORCLCDB_STBY)’ SCOPE = BOTH;

System altered.

SQL> ALTER SYSTEM SET LOG_ARCHIVE_DEST_1 = ‘LOCATION=USE_DB_RECOVERY_FILE_DEST VALID_FOR=(ALL_LOGFILES,ALL_ROLES) DB_UNIQUE_NAME=ORCLCDB’ SCOPE = BOTH;

System altered.

SQL> ALTER SYSTEM SET LOG_ARCHIVE_DEST_2 = ‘SERVICE=ORCLCDB_STBY LGWR ASYNC VALID_FOR=(ONLINE_LOGFILES,PRIMARY_ROLE) DB_UNIQUE_NAME=ORCLCDB_STBY’ SCOPE = BOTH;

System altered.

SQL> ALTER SYSTEM SET LOG_ARCHIVE_DEST_STATE_1 = ENABLE SCOPE = BOTH;

System altered.

SQL> ALTER SYSTEM SET LOG_ARCHIVE_DEST_STATE_2 = ENABLE SCOPE = BOTH;

System altered.

SQL> ALTER SYSTEM SET FAL_SERVER = ‘ORCLCDB_STBY’ SCOPE = BOTH;

System altered.

SQL> ALTER SYSTEM SET FAL_CLIENT = ‘ORCLCDB’ SCOPE = BOTH;

System altered.

SQL> ALTER SYSTEM SET STANDBY_FILE_MANAGEMENT = AUTO SCOPE = BOTH;

System altered.

# 配置TNS
$ vi $ORACLE_HOME/network/admin/tnsnames.ora

ORCLCDB =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = primary.fgedu.net.cn)(PORT = 1521))
(CONNECT_DATA =
(SERVER = DEDICATED)
(SERVICE_NAME = ORCLCDB)
)
)

ORCLCDB_STBY =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = standby.fgedu.net.cn)(PORT = 1521))
(CONNECT_DATA =
(SERVER = DEDICATED)
(SERVICE_NAME = ORCLCDB_STBY)
)
)

# 验证主库参数配置成功

3.2.2 配置备库参数

# 连接到备库
$ sqlplus / as sysdba

SQL*Plus: Release 19.0.0.0.0 – Production on Fri Mar 31 10:00:00 2026
Version 19.3.0.0.0

Connected to:
Oracle Database 19c Enterprise Edition Release 19.0.0.0.0 – Production
Version 19.3.0.0.0

# 配置备库参数
SQL> ALTER SYSTEM SET LOG_ARCHIVE_CONFIG = ‘DG_CONFIG=(ORCLCDB,ORCLCDB_STBY)’ SCOPE = BOTH;

System altered.

SQL> ALTER SYSTEM SET LOG_ARCHIVE_DEST_1 = ‘LOCATION=USE_DB_RECOVERY_FILE_DEST VALID_FOR=(ALL_LOGFILES,ALL_ROLES) DB_UNIQUE_NAME=ORCLCDB_STBY’ SCOPE = BOTH;

System altered.

SQL> ALTER SYSTEM SET LOG_ARCHIVE_DEST_2 = ‘SERVICE=ORCLCDB LGWR ASYNC VALID_FOR=(ONLINE_LOGFILES,PRIMARY_ROLE) DB_UNIQUE_NAME=ORCLCDB’ SCOPE = BOTH;

System altered.

SQL> ALTER SYSTEM SET LOG_ARCHIVE_DEST_STATE_1 = ENABLE SCOPE = BOTH;

System altered.

SQL> ALTER SYSTEM SET LOG_ARCHIVE_DEST_STATE_2 = ENABLE SCOPE = BOTH;

System altered.

SQL> ALTER SYSTEM SET FAL_SERVER = ‘ORCLCDB’ SCOPE = BOTH;

System altered.

SQL> ALTER SYSTEM SET FAL_CLIENT = ‘ORCLCDB_STBY’ SCOPE = BOTH;

System altered.

SQL> ALTER SYSTEM SET STANDBY_FILE_MANAGEMENT = AUTO SCOPE = BOTH;

System altered.

# 配置TNS
$ vi $ORACLE_HOME/network/admin/tnsnames.ora

ORCLCDB =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = primary.fgedu.net.cn)(PORT = 1521))
(CONNECT_DATA =
(SERVER = DEDICATED)
(SERVICE_NAME = ORCLCDB)
)
)

ORCLCDB_STBY =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = standby.fgedu.net.cn)(PORT = 1521))
(CONNECT_DATA =
(SERVER = DEDICATED)
(SERVICE_NAME = ORCLCDB_STBY)
)
)

# 验证备库参数配置成功

3.3 PDB DataGuard验证

3.3.1 验证DataGuard状态

# 连接到主库
$ sqlplus / as sysdba

SQL*Plus: Release 19.0.0.0.0 – Production on Fri Mar 31 10:00:00 2026
Version 19.3.0.0.0

Connected to:
Oracle Database 19c Enterprise Edition Release 19.0.0.0.0 – Production
Version 19.3.0.0.0

# 查看DataGuard状态
SQL> SELECT name, db_unique_name, open_mode, database_role, protection_mode, protection_level FROM v$database;

NAME DB_UNIQUE_NAME OPEN_MODE DATABASE_ROLE PROTECTION_MODE PROTECTION_LEVEL
——— —————– ————– —————– ——————– ——————–
ORCLCDB ORCLCDB READ WRITE PRIMARY MAXIMUM PERFORMANCE MAXIMUM PERFORMANCE

# 查看归档日志传输状态
SQL> SELECT dest_name, status, error FROM v$archive_dest WHERE dest_name IN (‘LOG_ARCHIVE_DEST_1’, ‘LOG_ARCHIVE_DEST_2’);

DEST_NAME STATUS ERROR
——————– ——— ——————–
LOG_ARCHIVE_DEST_1 VALID
LOG_ARCHIVE_DEST_2 VALID

# 查看归档日志应用状态
SQL> SELECT sequence#, applied FROM v$archived_log ORDER BY sequence# DESC FETCH FIRST 10 ROWS ONLY;

SEQUENCE# APPLIED
———- ——–
10 YES
9 YES
8 YES
7 YES
6 YES
5 YES
4 YES
3 YES
2 YES
1 YES

# 验证DataGuard状态成功

3.3.2 验证PDB同步状态

# 连接到备库
$ sqlplus / as sysdba

SQL*Plus: Release 19.0.0.0.0 – Production on Fri Mar 31 10:00:00 2026
Version 19.3.0.0.0

Connected to:
Oracle Database 19c Enterprise Edition Release 19.0.0.0.0 – Production
Version 19.3.0.0.0

# 查看PDB状态
SQL> SELECT con_id, name, open_mode FROM v$pdbs ORDER BY con_id;

CON_ID NAME OPEN_MODE
—— ——— ———-
2 PDB$SEED READ ONLY
3 SALESPDB MOUNTED
4 HRPDB MOUNTED
5 APP_ROOT MOUNTED
6 APP_PDB1 MOUNTED

# 打开PDB
SQL> ALTER PLUGGABLE DATABASE fgfgfgsalespdb OPEN READ ONLY;

Pluggable database altered.

SQL> ALTER PLUGGABLE DATABASE hrpdb OPEN READ ONLY;

Pluggable database altered.

SQL> ALTER PLUGGABLE DATABASE app_root OPEN READ ONLY;

Pluggable database altered.

SQL> ALTER PLUGGABLE DATABASE app_pdb1 OPEN READ ONLY;

Pluggable database altered.

# 查看PDB状态
SQL> SELECT con_id, name, open_mode FROM v$pdbs ORDER BY con_id;

CON_ID NAME OPEN_MODE
—— ——— ———-
2 PDB$SEED READ ONLY
3 SALESPDB READ ONLY
4 HRPDB READ ONLY
5 APP_ROOT READ ONLY
6 APP_PDB1 READ ONLY

# 验证PDB同步状态成功

风哥提示：验证PDB DataGuard是否成功，需要检查DataGuard状态、参数配置、日志传输、日志应用、PDB同步等，确保数据库运行正常。学习交流加群风哥QQ113257174

Part04-生产案例与实战讲解

4.1 PDB DataGuard案例

在某企业的生产环境中，需要为PDB配置DataGuard。

# 案例背景
– 数据库版本：Oracle 19c
– 系统规模：中等规模，日交易量100万
– 需求：为PDB配置DataGuard

# 实施方案
1. 查看CDB
SQL> SELECT name, db_unique_name, open_mode, database_role FROM v$database;

NAME DB_UNIQUE_NAME OPEN_MODE DATABASE_ROLE
——— —————– ————– —————-
ORCLCDB ORCLCDB READ WRITE PRIMARY

2. 配置归档模式
SQL> SHUTDOWN IMMEDIATE;

Database closed.
Database dismounted.
ORACLE instance shut down.

SQL> STARTUP MOUNT;

ORACLE instance started.

Total System Global Area 838860800 bytes
Fixed Size 9140416 bytes
Variable Size 503316480 bytes
Database Buffers 318767104 bytes
Redo Buffers 7737600 bytes
Database mounted.

SQL> ALTER DATABASE ARCHIVELOG;

Database altered.

SQL> ALTER DATABASE OPEN;

Database altered.

3. 配置强制日志
SQL> ALTER DATABASE FORCE LOGGING;

Database altered.

4. 配置Standby Redo Log
SQL> ALTER DATABASE ADD STANDBY LOGFILE THREAD 1 GROUP 11 SIZE 50M;

Database altered.

5. 配置DataGuard参数
SQL> ALTER SYSTEM SET LOG_ARCHIVE_CONFIG = ‘DG_CONFIG=(ORCLCDB,ORCLCDB_STBY)’ SCOPE = BOTH;

System altered.

6. 验证DataGuard配置
SQL> SELECT name, db_unique_name, open_mode, database_role, protection_mode FROM v$database;

NAME DB_UNIQUE_NAME OPEN_MODE DATABASE_ROLE PROTECTION_MODE
——— —————– ————– —————– ——————–
ORCLCDB ORCLCDB READ WRITE PRIMARY MAXIMUM PERFORMANCE

# 实施效果
– 成功配置PDB DataGuard
– DataGuard状态正常
– 日志传输正常
– 数据保护提高

4.2 PDB DataGuard优化案例

在某金融机构的生产环境中，需要优化PDB DataGuard，提高数据保护级别。

# 案例背景
– 数据库版本：Oracle 19c
– 系统规模：大规模，日交易量1000万
– 问题：PDB DataGuard需要优化

# 优化方案
1. 查看DataGuard状态
SQL> SELECT name, db_unique_name, open_mode, database_role, protection_mode, protection_level FROM v$database;

2. 优化DataGuard配置
SQL> ALTER SYSTEM SET LOG_ARCHIVE_DEST_2 = ‘SERVICE=ORCLCDB_STBY SYNC AFFIRM VALID_FOR=(ONLINE_LOGFILES,PRIMARY_ROLE) DB_UNIQUE_NAME=ORCLCDB_STBY’ SCOPE = BOTH;

System altered.

SQL> ALTER DATABASE SET STANDBY DATABASE TO MAXIMIZE AVAILABILITY;

Database altered.

3. 验证优化效果
SQL> SELECT name, db_unique_name, open_mode, database_role, protection_mode, protection_level FROM v$database;

NAME DB_UNIQUE_NAME OPEN_MODE DATABASE_ROLE PROTECTION_MODE PROTECTION_LEVEL
——— —————– ————– —————– ——————– ——————–
ORCLCDB ORCLCDB READ WRITE PRIMARY MAXIMUM AVAILABILITY MAXIMUM AVAILABILITY

# 优化效果
– DataGuard配置优化
– 数据保护级别提高
– 数据安全性提高
– 可用性提高

4.3 PDB DataGuard问题处理

在某电商网站的生产环境中，PDB DataGuard出现问题，需要处理。

# 问题现象
– 日志传输失败
– 备库同步延迟
– 数据不一致

# 分析步骤
1. 查看归档日志传输状态
SQL> SELECT dest_name, status, error FROM v$archive_dest WHERE dest_name IN (‘LOG_ARCHIVE_DEST_1’, ‘LOG_ARCHIVE_DEST_2’);

DEST_NAME STATUS ERROR
——————– ——— ——————–
LOG_ARCHIVE_DEST_1 VALID
LOG_ARCHIVE_DEST_2 ERROR ORA-12154: TNS:could not resolve the connect identifier specified

2. 查看TNS配置
$ tnsping ORCLCDB_STBY

TNS Ping Utility for Linux: Version 19.3.0.0.0 – Production on 31-MAR-2026 10:00:00

Used parameter files:
/oracle/app/oracle/product/19c/dbhome_1/network/admin/sqlnet.ora

Used TNSNAMES adapter to resolve the alias
Attempting to contact (DESCRIPTION = (ADDRESS = (PROTOCOL = TCP)(HOST = standby.fgedu.net.cn)(PORT = 1521)) (CONNECT_DATA = (SERVER = DEDICATED) (SERVICE_NAME = ORCLCDB_STBY)))
TNS-12541: TNS:no listener

# 问题原因
– TNS配置错误
– 日志传输失败

# 解决方案
1. 修复TNS配置
$ vi $ORACLE_HOME/network/admin/tnsnames.ora

ORCLCDB_STBY =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.1.100)(PORT = 1521))
(CONNECT_DATA =
(SERVER = DEDICATED)
(SERVICE_NAME = ORCLCDB_STBY)
)
)

2. 测试TNS连接
$ tnsping ORCLCDB_STBY

TNS Ping Utility for Linux: Version 19.3.0.0.0 – Production on 31-MAR-2026 10:00:00

Used parameter files:
/oracle/app/oracle/product/19c/dbhome_1/network/admin/sqlnet.ora

Used TNSNAMES adapter to resolve the alias
Attempting to contact (DESCRIPTION = (ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.1.100)(PORT = 1521)) (CONNECT_DATA = (SERVER = DEDICATED) (SERVICE_NAME = ORCLCDB_STBY)))
OK (10 msec)

3. 验证归档日志传输状态
SQL> SELECT dest_name, status, error FROM v$archive_dest WHERE dest_name IN (‘LOG_ARCHIVE_DEST_1’, ‘LOG_ARCHIVE_DEST_2’);

DEST_NAME STATUS ERROR
——————– ——— ——————–
LOG_ARCHIVE_DEST_1 VALID
LOG_ARCHIVE_DEST_2 VALID

# 解决效果
– TNS配置正确
– 日志传输正常
– 备库同步正常
– 数据一致性恢复

生产环境建议：配置PDB DataGuard前，需要分析业务需求和系统资源，确保DataGuard配置合理。更多学习教程公众号风哥教程itpux_com

Part05-风哥经验总结与分享

5.1 PDB DataGuard经验

Oracle数据库PDB DataGuard经验：

规划DataGuard架构：根据业务需求规划DataGuard架构，最小化数据丢失
配置保护模式：为PDB配置合理的保护模式
监控日志传输：监控日志传输情况，及时发现和处理问题
定期测试切换：定期测试故障切换功能，确保系统可用
设置监控告警：设置监控告警，及时发现DataGuard问题
定期review：定期review DataGuard配置，优化保护策略

风哥提示：PDB DataGuard是Oracle数据库多租户架构的核心功能，通过规划DataGuard架构，配置保护模式，监控日志传输，定期测试切换，设置监控告警，定期review，可以显著提高数据库的可用性和可靠性。from oracle:www.itpux.com

5.2 PDB DataGuard检查清单

# PDB DataGuard检查清单
– [ ] 检查系统资源
– [ ] 检查CDB架构
– [ ] 检查PDB DataGuard需求
– [ ] 检查网络配置
– [ ] 检查归档模式
– [ ] 检查强制日志
– [ ] 规划DataGuard架构
– [ ] 配置DataGuard参数
– [ ] 配置TNS
– [ ] 验证DataGuard功能

# PDB DataGuard问题处理流程
1. 检查系统资源
2. 检查CDB架构
3. 检查PDB DataGuard需求
4. 规划DataGuard架构
5. 配置DataGuard参数
6. 配置TNS
7. 验证DataGuard功能
8. 处理DataGuard问题
9. 优化配置
10. 监控DataGuard状态

5.3 PDB DataGuard工具

Oracle数据库PDB DataGuard常用工具：

Data Guard Broker：Data Guard代理，用于管理DataGuard
DGMGRL：Data Guard管理命令行工具
SQL*Plus：SQL命令行工具，用于执行SQL命令
Oracle Enterprise Manager：图形化管理工具，用于监控和管理数据库
RMAN：恢复管理器，用于备份和恢复数据库
SQL Developer：SQL开发工具，用于开发和调试SQL

持续改进：PDB DataGuard是一个持续的过程，需要定期review和优化。建议建立PDB DataGuard的规范和流程，不断改进数据库的可用性和可靠性。

本文由风哥教程整理发布,仅用于学习测试使用,转载注明出处:http://www.fgedu.net.cn/10327.html

Oracle教程FG372-PDB DataGuard

Part01-基础概念与理论知识

1.1 PDB DataGuard的概念

1.2 PDB DataGuard的方法

1.3 PDB DataGuard的要求

Part02-生产环境规划与建议

2.1 PDB DataGuard规划

2.2 PDB DataGuard设计

2.3 PDB DataGuard最佳实践

Part03-生产环境项目实施方案

3.1 PDB DataGuard实施

3.1.1 配置主库

3.1.2 配置备库

3.2 PDB DataGuard配置

3.2.1 配置主库参数

3.2.2 配置备库参数

3.3 PDB DataGuard验证

3.3.1 验证DataGuard状态

3.3.2 验证PDB同步状态

Part04-生产案例与实战讲解

4.1 PDB DataGuard案例

4.2 PDB DataGuard优化案例

4.3 PDB DataGuard问题处理

Part05-风哥经验总结与分享

5.1 PDB DataGuard经验

5.2 PDB DataGuard检查清单

5.3 PDB DataGuard工具

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