物理dg配置客户端无缝切换 (1)--Data Guard Broker 的配置

前言部分

导读

各位技术爱好者，看完本文后，你可以掌握如下的技能，也可以学到一些其它你所不知道的知识，~O(∩_∩)O~：

① Data Guard Broker 的配置

② Fast-Start Failover 的配置

③ Oracle DataGuard 之客户端TAF 配置

④ 使用DGMGRL 来管理数据库

⑤ 物理dg管理和维护的一些sql

⑥ DataGuard 客户端特级配置

实验环境介绍

本次课程，研究当主备库发生切换时，如何在主库启动一个service，保证客户端的连接能够继续，而且还能够继续select查询操作，而不管主备库是在哪台服务器上；同时保证新的客户连接没有任何的问题。本课程网络上的例子不多，陈老师花了将近一年的时间人肉搜索，最近才找到，急不可待的要分享给大家。

1、DataGuard的配置（快速）

2、创建service

3、创建触发器

4、主备库切换测试

相关知识点扫盲

oracle Data Guard，以最低成本实现最高的数据保护。在硬件上没有特殊要求，普通PC机即可实现。

简单的来说，Data Guard，就是自动创建和维护生产数据库（或主数据库）的一个或多个事务一致的副本（备用数据库）。如果主数据库不可用（因为故障、维护或者灾难），那么可以激活一个备用数据库并使之承担主数据库的角色。然而，在配置完成Data Guard后，若需要实现主备数据库间的切换，需要在主数据库及备用数据库上分别输入多个命令，切换步骤稍显麻烦。所以，一般情况下，DBA会将整个切换过程编辑成脚本，以便自动运行，进行状态切换。当然，oracle 也提供了工具Data Guard Broker，仅在控制端输入一个命令就能方便实现主备数据库间的切换。

在Data Guard Broker的基础上，配置并启用Fast-Start Failover，就能自动检测发现主机故障，实现主备切换，故障转移。

Data Guard Broker是建立在Data Guard基础上的一个对Data Guard配置，集中管理操作的一个平台。Broker的推出是为了简化DG复杂的管理过程，它最大的作用就是集中化的统一管理。

配置Data Guard Broker使用到的客户端工具是DGMGRL。它是一个命令行管理工具。

实验部分

实验目标

Data Guard Broker 的配置并完成实验。

前提条件

注意前提条件，Data Guard已经成功配置完成。

1. 设置primary和standby启动时参数文件为spfile
   
2. 配置DG_BROKER_CONFIG_FILEn
   DG_BROKER_CONFIG_FILEn代表2个参数，分别为DG_BROKER_CONFIG_FILE1，DG_BROKER_CONFIG_FILE2，它们是Data Guard Broker的配置文件名。它们都有默认值（windows下是在ORACLE_HOME/database目录下，linux下是在ORACLE_HOME/dbs目录下），所以一般我们可以不进行特别设置。
3. 设置listener
   在Data Guard Broker环境中，需要在listener.ora静态添加一个service_name为db_unique_name_DGMGRL.db_domain的注册。这个service_name会在DGMGRL重启数据库的时候用到。通过DGMGRL重启数据库时DMON进程会先将数据库关闭，然后DGMGRL用此service_name通过listener连接到数据库，发出启动命令。
4. 设置DG_BROKER_START为TRUE
   这一步是启动Data Guard Broker monitor（DMON）进程，需要在2个数据库上面都运行下面的命令
   alter system set dg_broker_start=true scope=both;

主库操作：

[oracle@rhel6_lhr lhr]$ sqlplus / as sysdba

SQL*Plus: Release 11.2.0.3.0 Production on 星期一 9月 28 10:17:04 2015

Copyright (c) 1982, 2011, Oracle. All rights reserved.

连接到:

Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - 64bit Production

With the Partitioning, OLAP, Data Mining and Real Application Testing options

10:17:04 SQL> show parameter name

NAME TYPE VALUE

------------------------------------ ----------- ------------------------------

db_file_name_convert string oradglg, oradg11g

db_name string oradg11g

db_unique_name string oradg11g

global_names boolean FALSE

instance_name string oradg11g

lock_name_space string

log_file_name_convert string oradglg, oradg11g

processor_group_name string

service_names string oradg11g

10:17:08 SQL> show parameter spfile

NAME TYPE VALUE

------------------------------------ ----------- ------------------------------

spfile string /u01/app/oracle/product/11.2.0

/dbhome_1/dbs/spfileoradg11g.o

ra

10:17:14 SQL> show parameter DG_BROKER_CONFIG_FILE

NAME TYPE VALUE

------------------------------------ ----------- ------------------------------

dg_broker_config_file1 string /u01/app/oracle/product/11.2.0

/dbhome_1/dbs/dr1oradg11g.dat

dg_broker_config_file2 string /u01/app/oracle/product/11.2.0

/dbhome_1/dbs/dr2oradg11g.dat

10:20:43 SQL> set line 9999

10:20:44 SQL> col name format a10

10:20:44 SQL> col FS_FAILOVER_OBSERVER_HOST format a20

10:20:44 SQL> select dbid,name,current_scn,protection_mode,protection_level,database_role,force_logging,open_mode,switchover_status from v$database;

DBID NAME CURRENT_SCN PROTECTION_MODE PROTECTION_LEVEL DATABASE_ROLE FOR OPEN_MODE SWITCHOVER_STATUS

---------- ---------- ----------- -------------------- -------------------- ---------------- --- -------------------- --------------------

1403587593 ORADG11G 2336836 MAXIMUM PERFORMANCE MAXIMUM PERFORMANCE PRIMARY YES READ WRITE TO STANDBY

已用时间: 00: 00: 00.01

10:20:44 SQL> SELECT d.DBID,

10:20:44 2 d.DB_UNIQUE_NAME,

10:20:44 3 d.FORCE_LOGGING,

10:20:44 4 d.FLASHBACK_ON,

10:20:44 5 d.FS_FAILOVER_STATUS,

10:20:44 6 d.FS_FAILOVER_CURRENT_TARGET,

10:20:44 7 d.FS_FAILOVER_THRESHOLD,

10:20:44 8 d.FS_FAILOVER_OBSERVER_PRESENT,

10:20:44 9 d.FS_FAILOVER_OBSERVER_HOST

10:20:44 10 FROM v$database d;

DBID DB_UNIQUE_NAME FOR FLASHBACK_ON FS_FAILOVER_STATUS FS_FAILOVER_CURRENT_TARGET FS_FAILOVER_THRESHOLD FS_FAIL FS_FAILOVER_OBSERVER

---------- ------------------------------ --- ------------------ ---------------------- ------------------------------ --------------------- ------- --------------------

1403587593 oradg11g YES YES DISABLED 0

已用时间: 00: 00: 00.00

10:20:45 SQL>

10:20:45 SQL> ! ps -ef|grep dmon

oracle 7936 7895 0 10:21 pts/4 00:00:00 /bin/bash -c ps -ef|grep dmon

oracle 7938 7936 0 10:21 pts/4 00:00:00 grep dmon

10:21:17 SQL> show parameter dg_broker

NAME TYPE VALUE

------------------------------------ ----------- ------------------------------

dg_broker_config_file1 string /u01/app/oracle/product/11.2.0

/dbhome_1/dbs/dr1oradg11g.dat

dg_broker_config_file2 string /u01/app/oracle/product/11.2.0

/dbhome_1/dbs/dr2oradg11g.dat

dg_broker_start boolean FALSE

10:21:39 SQL> show parameter dg_broker_start

NAME TYPE VALUE

------------------------------------ ----------- ------------------------------

dg_broker_start boolean FALSE

10:21:53 SQL> alter system set dg_broker_start=true scope=both;

系统已更改。

已用时间: 00: 00: 00.02

10:21:56 SQL> ! ps -ef|grep dmon

oracle 7975 1 0 10:21 ? 00:00:00 ora_dmon_oradg11g

oracle 7976 7895 0 10:22 pts/4 00:00:00 /bin/bash -c ps -ef|grep dmon

oracle 7978 7976 0 10:22 pts/4 00:00:00 grep dmon

10:22:02 SQL>

10:22:02 SQL> show parameter dg_broker_start

NAME TYPE VALUE

------------------------------------ ----------- ------------------------------

dg_broker_start boolean TRUE

10:23:48 SQL> set line 9999

10:23:58 SQL> col name format a10

10:23:58 SQL> col FS_FAILOVER_OBSERVER_HOST format a20

10:23:58 SQL> select dbid,name,current_scn,protection_mode,protection_level,database_role,force_logging,open_mode,switchover_status from v$database;

DBID NAME CURRENT_SCN PROTECTION_MODE PROTECTION_LEVEL DATABASE_ROLE FOR OPEN_MODE SWITCHOVER_STATUS

---------- ---------- ----------- -------------------- -------------------- ---------------- --- -------------------- --------------------

1403587593 ORADG11G 2337043 MAXIMUM PERFORMANCE MAXIMUM PERFORMANCE PRIMARY YES READ WRITE TO STANDBY

已用时间: 00: 00: 00.01

10:23:58 SQL> SELECT d.DBID,

10:23:58 2 d.DB_UNIQUE_NAME,

10:23:58 3 d.FORCE_LOGGING,

10:23:58 4 d.FLASHBACK_ON,

10:23:58 5 d.FS_FAILOVER_STATUS,

10:23:58 6 d.FS_FAILOVER_CURRENT_TARGET,

10:23:58 7 d.FS_FAILOVER_THRESHOLD,

10:23:58 8 d.FS_FAILOVER_OBSERVER_PRESENT,

10:23:58 9 d.FS_FAILOVER_OBSERVER_HOST

10:23:58 10 FROM v$database d;

DBID DB_UNIQUE_NAME FOR FLASHBACK_ON FS_FAILOVER_STATUS FS_FAILOVER_CURRENT_TARGET FS_FAILOVER_THRESHOLD FS_FAIL FS_FAILOVER_OBSERVER

---------- ------------------------------ --- ------------------ ---------------------- ------------------------------ --------------------- ------- --------------------

1403587593 oradg11g YES YES DISABLED 0

已用时间: 00: 00: 00.00

10:24:00 SQL>

告警日志：

Mon Sep 28 10:21:56 2015

ALTER SYSTEM SET dg_broker_start=TRUE SCOPE=BOTH;

Mon Sep 28 10:21:56 2015

DMON started with pid=37, OS id=7975

Starting Data Guard Broker (DMON)

Mon Sep 28 10:22:04 2015

INSV started with pid=38, OS id=7984

备库操作：

[oracle@rhel6_lhr ~]$ sqlplus / as sysdba

SQL*Plus: Release 11.2.0.3.0 Production on 星期一 9月 28 10:25:25 2015

Copyright (c) 1982, 2011, Oracle. All rights reserved.

连接到:

Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - 64bit Production

With the Partitioning, OLAP, Data Mining and Real Application Testing options

10:25:25 SQL> show parameter name

NAME TYPE VALUE

------------------------------------ ----------- ------------------------------

db_file_name_convert string oradg11g, oradgphy

db_name string oradg11g

db_unique_name string oradgphy

global_names boolean FALSE

instance_name string oradgphy

lock_name_space string

log_file_name_convert string oradg11g, oradgphy

processor_group_name string

service_names string oradgphy

10:25:27 SQL> show parameter spfile

NAME TYPE VALUE

------------------------------------ ----------- ------------------------------

spfile string /u01/app/oracle/product/11.2.0

/dbhome_1/dbs/spfileoradgphy.o

ra

10:25:35 SQL> show parameter DG_BROKER_CONFIG_FILE

NAME TYPE VALUE

------------------------------------ ----------- ------------------------------

dg_broker_config_file1 string /u01/app/oracle/product/11.2.0

/dbhome_1/dbs/dr1oradgphy.dat

dg_broker_config_file2 string /u01/app/oracle/product/11.2.0

/dbhome_1/dbs/dr2oradgphy.dat

10:25:43 SQL> set line 9999

10:25:51 SQL> col name format a10

10:25:51 SQL> col FS_FAILOVER_OBSERVER_HOST format a20

10:25:51 SQL> select dbid,name,current_scn,protection_mode,protection_level,database_role,force_logging,open_mode,switchover_status from v$database;

SELECT d.DBID,

d.DB_UNIQUE_NAME,

d.FORCE_LOGGING,

d.FLASHBACK_ON,

d.FS_FAILOVER_STATUS,

DBID NAME CURRENT_SCN PROTECTION_MODE PROTECTION_LEVEL DATABASE_ROLE FOR OPEN_MODE SWITCHOVER_STATUS

---------- ---------- ----------- -------------------- -------------------- ---------------- --- -------------------- --------------------

1403587593 ORADG11G 2337499 MAXIMUM PERFORMANCE MAXIMUM PERFORMANCE PHYSICAL STANDBY YES READ ONLY WITH APPLY NOT ALLOWED

已用时间: 00: 00: 00.11

10:25:52 SQL> 10:25:52 2 10:25:52 3 10:25:52 4 10:25:52 5 10:25:52 6 d.FS_FAILOVER_CURRENT_TARGET,

10:25:52 7 d.FS_FAILOVER_THRESHOLD,

10:25:52 8 d.FS_FAILOVER_OBSERVER_PRESENT,

10:25:52 9 d.FS_FAILOVER_OBSERVER_HOST

10:25:52 10 FROM v$database d;

DBID DB_UNIQUE_NAME FOR FLASHBACK_ON FS_FAILOVER_STATUS FS_FAILOVER_CURRENT_TARGET FS_FAILOVER_THRESHOLD FS_FAIL FS_FAILOVER_OBSERVER

---------- ------------------------------ --- ------------------ ---------------------- ------------------------------ --------------------- ------- --------------------

1403587593 oradgphy YES NO DISABLED 0

已用时间: 00: 00: 00.00

10:25:56 SQL> ! ps -ef|grep dmon

oracle 7975 1 0 10:21 ? 00:00:00 ora_dmon_oradg11g

oracle 8461 8410 0 10:26 pts/5 00:00:00 /bin/bash -c ps -ef|grep dmon

oracle 8463 8461 0 10:26 pts/5 00:00:00 grep dmon

10:26:07 SQL> show parameter dg_broker_start

NAME TYPE VALUE

------------------------------------ ----------- ------------------------------

dg_broker_start boolean FALSE

10:26:39 SQL> alter system set dg_broker_start=true scope=both;

系统已更改。

已用时间: 00: 00: 00.05

10:26:46 SQL> ! ps -ef|grep dmon

oracle 7975 1 0 10:21 ? 00:00:00 ora_dmon_oradg11g

oracle 8481 1 0 10:26 ? 00:00:00 ora_dmon_oradgphy

oracle 8501 8410 0 10:26 pts/5 00:00:00 /bin/bash -c ps -ef|grep dmon

oracle 8503 8501 0 10:26 pts/5 00:00:00 grep dmon

10:26:50 SQL>

配置db_domain 和 listener 及 tnsnames

目标： 配置db_domain 和 静态的listener ，listener中的GLOBAL_DBNAME为db_unique_name_DGMGRL.db_domain

主备库：

14:05:05 SQL> show parameter db_domain

NAME TYPE VALUE

------------------------------------ ----------- ------------------------------

db_domain string

14:13:46 SQL> alter system set db_domain='lhr.com' scope=spfile;

主备库listener的配置，注意红色的为新添加的内容：

dgmgrl中配置broker并启用

[oracle@rhel6_lhr ~]$ dgmgrl

DGMGRL for Linux: Version 11.2.0.3.0 - 64bit Production

Copyright (c) 2000, 2009, Oracle. All rights reserved.

欢迎使用 DGMGRL, 要获取有关信息请键入 "help"。

DGMGRL> help

可使用以下命令:

add 在中介配置中添加备用数据库

connect 连接到 Oracle 数据库实例

convert 将数据库从一种类型转换为另一种

create 创建中介配置

disable 禁用配置, 数据库或快速启动故障转移

edit 编辑配置, 数据库或实例

enable 启用配置, 数据库或快速启动故障转移

exit 退出程序

failover 将备用数据库更改为主数据库

help 显示命令的说明和语法

quit 退出程序

reinstate 将标记为恢复的数据库更改为可行的备用数据库

rem DGMGRL 会忽略注释

remove 删除配置, 数据库或实例

show 显示有关配置, 数据库或实例的信息

shutdown 关闭当前正在运行的 Oracle 数据库实例

sql 执行 SQL 语句

start 启动快速启动故障转移观察程序

startup 启动 Oracle 数据库实例

stop 停止快速启动故障转移观察程序

switchover 在主数据库和备用数据库之间切换角色

使用 "help \" 可以查看各个命令的语法

DGMGRL> connect sys/lhr@tns_oradg11g_dgmgrl

已连接。

DGMGRL>

DGMGRL> show configuration

ORA-16532: Data Guard 中介配置不存在

配置详细资料不能由 DGMGRL 确定

DGMGRL> help create

创建中介配置

语法:

CREATE CONFIGURATION \ AS

PRIMARY DATABASE IS \

CONNECT IDENTIFIER IS \;

DGMGRL> create configuration 'fsf_oradg11g_lhr' as

primary database is 'oradg11g'

connect identifier is tns_oradg11g_dgmgrl;

已创建配置 "fsf_oradg11g_lhr", 其中主数据库为 "oradg11g"

DGMGRL> show configuration

配置 - fsf_oradg11g_lhr

保护模式: MaxPerformance

数据库:

oradg11g - 主数据库

快速启动故障转移: DISABLED

配置状态:

DISABLED

DGMGRL> add database 'oradgphy' as

connect identifier is tns_oradgphy_dgmgrl

maintained as physical;

已添加数据库 "oradgphy"

DGMGRL> show configuration

配置 - fsf_oradg11g_lhr

保护模式: MaxPerformance

数据库:

oradg11g - 主数据库

oradgphy - 物理备用数据库

快速启动故障转移: DISABLED

配置状态:

DISABLED

DGMGRL>

DGMGRL> enable configuration

已启用。

DGMGRL> show configuration

配置 - fsf_oradg11g_lhr

保护模式: MaxPerformance

数据库:

oradg11g - 主数据库

oradgphy - 物理备用数据库

快速启动故障转移: DISABLED

配置状态:

SUCCESS

DGMGRL>

DGMGRL>

DGMGRL> show database verbose oradg11g

数据库 - oradg11g

角色: PRIMARY

预期状态: TRANSPORT-ON

实例:

oradg11g

属性:

DGConnectIdentifier = 'tns_oradg11g_dgmgrl'

ObserverConnectIdentifier = ''

LogXptMode = 'ASYNC'

DelayMins = '0'

Binding = 'OPTIONAL'

MaxFailure = '0'

MaxConnections = '1'

ReopenSecs = '300'

NetTimeout = '30'

RedoCompression = 'DISABLE'

LogShipping = 'ON'

PreferredApplyInstance = ''

ApplyInstanceTimeout = '0'

ApplyParallel = 'AUTO'

StandbyFileManagement = 'AUTO'

ArchiveLagTarget = '0'

LogArchiveMaxProcesses = '4'

LogArchiveMinSucceedDest = '1'

DbFileNameConvert = 'oradgphy, oradg11g'

LogFileNameConvert = 'oradgphy, oradg11g'

FastStartFailoverTarget = ''

InconsistentProperties = '(monitor)'

InconsistentLogXptProps = '(monitor)'

SendQEntries = '(monitor)'

LogXptStatus = '(monitor)'

RecvQEntries = '(monitor)'

SidName = 'oradg11g'

StaticConnectIdentifier = '(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=rhel6_lhr)(PORT=1521))(CONNECT_DATA=(SERVICE_NAME=oradg11g_DGMGRL.lhr.com)(INSTANCE_NAME=oradg11g)(SERVER=DEDICATED)))'

StandbyArchiveLocation = 'USE_DB_RECOVERY_FILE_DEST'

AlternateLocation = ''

LogArchiveTrace = '0'

LogArchiveFormat = '%t%s%r.dbf'

TopWaitEvents = '(monitor)'

数据库状态:

SUCCESS

DGMGRL> show database verbose oradgphy

数据库 - oradgphy

角色: PHYSICAL STANDBY

预期状态: APPLY-ON

传输滞后: 0 秒

应用滞后: 0 秒

实时查询: ON

实例:

oradgphy

属性:

DGConnectIdentifier = 'tns_oradgphy_dgmgrl'

ObserverConnectIdentifier = ''

LogXptMode = 'ASYNC'

DelayMins = '0'

Binding = 'optional'

MaxFailure = '0'

MaxConnections = '1'

ReopenSecs = '300'

NetTimeout = '30'

RedoCompression = 'DISABLE'

LogShipping = 'ON'

PreferredApplyInstance = ''

ApplyInstanceTimeout = '0'

ApplyParallel = 'AUTO'

StandbyFileManagement = 'AUTO'

ArchiveLagTarget = '0'

LogArchiveMaxProcesses = '4'

LogArchiveMinSucceedDest = '1'

DbFileNameConvert = 'oradg11g, oradgphy'

LogFileNameConvert = 'oradg11g, oradgphy'

FastStartFailoverTarget = ''

InconsistentProperties = '(monitor)'

InconsistentLogXptProps = '(monitor)'

SendQEntries = '(monitor)'

LogXptStatus = '(monitor)'

RecvQEntries = '(monitor)'

SidName = 'oradgphy'

StaticConnectIdentifier = '(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=rhel6_lhr)(PORT=1521))(CONNECT_DATA=(SERVICE_NAME=oradgphy_DGMGRL.lhr.com)(INSTANCE_NAME=oradgphy)(SERVER=DEDICATED)))'

StandbyArchiveLocation = 'USE_DB_RECOVERY_FILE_DEST'

AlternateLocation = ''

LogArchiveTrace = '0'

LogArchiveFormat = '%t%s%r.dbf'

TopWaitEvents = '(monitor)'

数据库状态:

SUCCESS

DGMGRL>

DGMGRL>

主库告警日志：

Mon Sep 28 15:20:28 2015

NSV1 started with pid=30, OS id=25660

Mon Sep 28 15:20:54 2015

ALTER SYSTEM SET log_archive_config='dg_config=(oradg11g,oradgphy)' SCOPE=BOTH;

Mon Sep 28 15:20:57 2015

ALTER SYSTEM SET log_archive_dest_2='service="tns_oradgphy_dgmgrl"','LGWR ASYNC NOAFFIRM delay=0 optional compression=disable max_failure=0 max_connections=1 reopen=300 db_unique_name="oradgphy" net_timeout=30','valid_for=(all_logfiles,primary_role)' SCOPE=BOTH;

ALTER SYSTEM SET log_archive_trace=0 SCOPE=BOTH SID='oradg11g';

ALTER SYSTEM SET log_archiveformat='%t%s_%r.dbf' SCOPE=SPFILE SID='oradg11g';

ALTER SYSTEM SET standby_file_management='AUTO' SCOPE=BOTH SID='*';

ALTER SYSTEM SET archive_lag_target=0 SCOPE=BOTH SID='*';

ALTER SYSTEM SET log_archive_max_processes=4 SCOPE=BOTH SID='*';

ALTER SYSTEM SET log_archive_min_succeed_dest=1 SCOPE=BOTH SID='*';

ALTER SYSTEM SET db_file_name_convert='oradgphy','oradg11g' SCOPE=SPFILE;

ALTER SYSTEM SET log_file_name_convert='oradgphy','oradg11g' SCOPE=SPFILE;

ALTER SYSTEM ARCHIVE LOG

Mon Sep 28 15:20:57 2015

NSA2 started with pid=34, OS id=25706

备库告警日志：

NSV0 started with pid=21, OS id=25696

Mon Sep 28 15:20:57 2015

ALTER SYSTEM SET log_archive_trace=0 SCOPE=BOTH SID='oradgphy';

ALTER SYSTEM SET log_archiveformat='%t%s_%r.dbf' SCOPE=SPFILE SID='oradgphy';

ALTER SYSTEM SET standby_file_management='AUTO' SCOPE=BOTH SID='*';

ALTER SYSTEM SET archive_lag_target=0 SCOPE=BOTH SID='*';

ALTER SYSTEM SET log_archive_max_processes=4 SCOPE=BOTH SID='*';

ALTER SYSTEM SET log_archive_min_succeed_dest=1 SCOPE=BOTH SID='*';

ALTER SYSTEM SET db_file_name_convert='oradg11g','oradgphy' SCOPE=SPFILE;

ALTER SYSTEM SET log_file_name_convert='oradg11g','oradgphy' SCOPE=SPFILE;

ALTER SYSTEM SET fal_server='tns_oradg11g_dgmgrl' SCOPE=BOTH;

Mon Sep 28 15:21:01 2015

Primary database is in MAXIMUM PERFORMANCE mode

RFS[4]: Assigned to RFS process 25708

RFS[4]: Selected log 4 for thread 1 sequence 145 dbid 1403587593 branch 886695024

测试Data Guard Broker 功能

在配置broker完成后，我们就可以利用broker完成switchover了。在DGMGRL中只需要简单的一个命令。
switchover to standby-database
(standby-database: 此参数是db_unique_name，大小写敏感。如果名称是大写的，需要用引号。表示切换standby-database为主机，原主机转换为备机状态)

DGMGRL> show configuration

配置 - fsf_oradg11g_lhr

保护模式: MaxPerformance

数据库:

oradg11g - 主数据库

oradgphy - 物理备用数据库

快速启动故障转移: DISABLED

配置状态:

SUCCESS

DGMGRL> switchover to oradgphy;

立即执行切换, 请稍候...

新的主数据库 "oradgphy" 正在打开...

操作要求关闭实例 "oradg11g" (在数据库 "oradg11g" 上)

正在关闭实例 "oradg11g"...

ORACLE 例程已经关闭。

操作要求启动实例 "oradg11g" (在数据库 "oradg11g" 上)

正在启动实例 "oradg11g"...

ORACLE 例程已经启动。

数据库装载完毕。

数据库已经打开。

切换成功, 新的主数据库为 "oradgphy"

DGMGRL> show configuration

配置 - fsf_oradg11g_lhr

保护模式: MaxPerformance

数据库:

oradgphy - 主数据库

oradg11g - 物理备用数据库

快速启动故障转移: DISABLED

配置状态:

SUCCESS

DGMGRL>

再切换一次，回到最初状态：

DGMGRL> switchover to oradg11g;

立即执行切换, 请稍候...

新的主数据库 "oradg11g" 正在打开...

操作要求关闭实例 "oradgphy" (在数据库 "oradgphy" 上)

正在关闭实例 "oradgphy"...

ORACLE 例程已经关闭。

操作要求启动实例 "oradgphy" (在数据库 "oradgphy" 上)

正在启动实例 "oradgphy"...

ORACLE 例程已经启动。

数据库装载完毕。

数据库已经打开。

切换成功, 新的主数据库为 "oradg11g"

DGMGRL> show configuration

配置 - fsf_oradg11g_lhr

保护模式: MaxPerformance

数据库:

oradg11g - 主数据库

oradgphy - 物理备用数据库

快速启动故障转移: DISABLED

配置状态:

SUCCESS

DGMGRL>

第一次切换的时候告警日志情况：

主库告警日志：

Mon Sep 28 15:26:24 2015

ALTER DATABASE COMMIT TO SWITCHOVER TO PHYSICAL STANDBY WITH SESSION SHUTDOWN

ALTER DATABASE COMMIT TO SWITCHOVER TO PHYSICAL STANDBY [Process Id: 23943] (oradg11g)

Mon Sep 28 15:26:24 2015

Thread 1 advanced to log sequence 146 (LGWR switch)

Current log# 2 seq# 146 mem# 0: /u01/app/oracle/oradata/oradg11g/redo02.log

Mon Sep 28 15:26:24 2015

Stopping background process CJQ0

Stopping background process QMNC

Stopping Job queue slave processes, flags = 27

Mon Sep 28 15:26:27 2015

Archived Log entry 501 added for thread 1 sequence 145 ID 0x5495956b dest 1:

Waiting for Job queue slaves to complete

Job queue slave processes stopped

All dispatchers and shared servers shutdown

CLOSE: killing server sessions.

Active process 25846 user 'oracle' program 'oracle@rhel6_lhr (W000)'

Active process 25846 user 'oracle' program 'oracle@rhel6_lhr (W000)'

Active process 25846 user 'oracle' program 'oracle@rhel6_lhr (W000)'

Active process 25846 user 'oracle' program 'oracle@rhel6_lhr (W000)'

Active process 25846 user 'oracle' program 'oracle@rhel6_lhr (W000)'

Active process 25846 user 'oracle' program 'oracle@rhel6_lhr (W000)'

Active process 25846 user 'oracle' program 'oracle@rhel6_lhr (W000)'

Active process 25846 user 'oracle' program 'oracle@rhel6_lhr (W000)'

Active process 25846 user 'oracle' program 'oracle@rhel6_lhr (W000)'

Active process 25846 user 'oracle' program 'oracle@rhel6_lhr (W000)'

Active process 25846 user 'oracle' program 'oracle@rhel6_lhr (W000)'

Active process 25846 user 'oracle' program 'oracle@rhel6_lhr (W000)'

Active process 25846 user 'oracle' program 'oracle@rhel6_lhr (W000)'

Active process 25846 user 'oracle' program 'oracle@rhel6_lhr (W000)'

Active process 25846 user 'oracle' program 'oracle@rhel6_lhr (W000)'

Active process 25846 user 'oracle' program 'oracle@rhel6_lhr (W000)'

Active process 25846 user 'oracle' program 'oracle@rhel6_lhr (W000)'

Active process 25846 user 'oracle' program 'oracle@rhel6_lhr (W000)'

Active process 25846 user 'oracle' program 'oracle@rhel6_lhr (W000)'

Active process 25846 user 'oracle' program 'oracle@rhel6_lhr (W000)'

Active process 25846 user 'oracle' program 'oracle@rhel6_lhr (W000)'

Active process 25846 user 'oracle' program 'oracle@rhel6_lhr (W000)'

Active process 25846 user 'oracle' program 'oracle@rhel6_lhr (W000)'

Active process 25846 user 'oracle' program 'oracle@rhel6_lhr (W000)'

Active process 25846 user 'oracle' program 'oracle@rhel6_lhr (W000)'

Active process 25846 user 'oracle' program 'oracle@rhel6_lhr (W000)'

Active process 25846 user 'oracle' program 'oracle@rhel6_lhr (W000)'

Active process 25846 user 'oracle' program 'oracle@rhel6_lhr (W000)'

Active process 25846 user 'oracle' program 'oracle@rhel6_lhr (W000)'

Active process 25846 user 'oracle' program 'oracle@rhel6_lhr (W000)'

CLOSE: all sessions shutdown successfully.

Waiting for all non-current ORLs to be archived...

All non-current ORLs have been archived.

Waiting for all FAL entries to be archived...

All FAL entries have been archived.

Waiting for dest_id 2 to become synchronized...

Active, synchronized Physical Standby switchover target has been identified

Switchover End-Of-Redo Log thread 1 sequence 146 has been fixed

Switchover: Primary highest seen SCN set to 0x0.0x262c94

ARCH: Noswitch archival of thread 1, sequence 146

ARCH: End-Of-Redo Branch archival of thread 1 sequence 146

ARCH: LGWR is actively archiving destination LOG_ARCHIVE_DEST_2

ARCH: Standby redo logfile selected for thread 1 sequence 146 for destination LOG_ARCHIVE_DEST_2

Archived Log entry 502 added for thread 1 sequence 146 ID 0x5495956b dest 1:

ARCH: Archiving is disabled due to current logfile archival

Primary will check for some target standby to have received alls redo

Final check for a synchronized target standby. Check will be made once.

Archive destination LOG_ARCHIVE_DEST_3 invalidated

DB_UNIQUE_NAME oradglg is not in the Data Guard configuration

Archive destination LOG_ARCHIVE_DEST_4 invalidated

DB_UNIQUE_NAME oradgss is not in the Data Guard configuration

LOG_ARCHIVE_DEST_2 is a potential Physical Standby switchover target

Active, synchronized target has been identified

Target has also received all redo

Backup controlfile written to trace file /u01/app/oracle/diag/rdbms/oradg11g/oradg11g/trace/oradg11g_rsm0_23943.trc

Clearing standby activation ID 1419089259 (0x5495956b)

The primary database controlfile was created using the

'MAXLOGFILES 16' clause.

There is space for up to 13 standby redo logfiles

Use the following SQL commands on the standby database to create

standby redo logfiles that match the primary database:

ALTER DATABASE ADD STANDBY LOGFILE 'srl1.f' SIZE 52428800;

ALTER DATABASE ADD STANDBY LOGFILE 'srl2.f' SIZE 52428800;

ALTER DATABASE ADD STANDBY LOGFILE 'srl3.f' SIZE 52428800;

ALTER DATABASE ADD STANDBY LOGFILE 'srl4.f' SIZE 52428800;

Archivelog for thread 1 sequence 146 required for standby recovery

Switchover: Primary controlfile converted to standby controlfile succesfully.

Switchover: Complete - Database shutdown required

Completed: ALTER DATABASE COMMIT TO SWITCHOVER TO PHYSICAL STANDBY WITH SESSION SHUTDOWN

Mon Sep 28 15:26:37 2015

Performing implicit shutdown abort due to switchover to physical standby

Shutting down instance (abort)

License high water mark = 8

USER (ospid: 26018): terminating the instance

Instance terminated by USER, pid = 26018

Mon Sep 28 15:26:38 2015

Instance shutdown complete

ORA-1092 : opitsk aborting process

Mon Sep 28 15:26:38 2015

Starting ORACLE instance (normal)

LICENSE_MAX_SESSION = 0

LICENSE_SESSIONS_WARNING = 0

Picked latch-free SCN scheme 3

Archive destination LOG_ARCHIVE_DEST_3 invalidated

DB_UNIQUE_NAME oradglg is not in the Data Guard configuration

Archive destination LOG_ARCHIVE_DEST_4 invalidated

DB_UNIQUE_NAME oradgss is not in the Data Guard configuration

Autotune of undo retention is turned on.

IMODE=BR

ILAT =27

LICENSE_MAX_USERS = 0

SYS auditing is disabled

Starting up:

Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - 64bit Production

With the Partitioning, OLAP, Data Mining and Real Application Testing options.

ORACLE_HOME = /u01/app/oracle/product/11.2.0/dbhome_1

System name: Linux

Node name: rhel6_lhr

Release: 2.6.32-504.16.2.el6.x86_64

Version: #1 SMP Tue Apr 21 08:37:59 PDT 2015

Machine: x86_64

VM name: VMWare Version: 6

Using parameter settings in server-side spfile /u01/app/oracle/product/11.2.0/dbhome_1/dbs/spfileoradg11g.ora

System parameters with non-default values:

processes = 150

memory_target = 300M

memory_max_target = 400M

control_files = "/u01/app/oracle/oradata/oradg11g/control01.ctl"

control_files = "/u01/app/oracle/flash_recovery_area/oradg11g/control02.ctl"

db_file_name_convert = "oradgphy"

db_file_name_convert = "oradg11g"

log_file_name_convert = "oradgphy"

log_file_name_convert = "oradg11g"

db_block_size = 8192

compatible = "11.2.0.0.0"

log_archive_dest_1 = "LOCATION=USE_DB_RECOVERY_FILE_DEST db_unique_name=oradg11g valid_for=(ALL_LOGFILES,ALL_ROLES)"

log_archive_dest_2 = "service="tns_oradgphy_dgmgrl""

log_archive_dest_2 = "LGWR ASYNC NOAFFIRM delay=0 optional compression=disable max_failure=0 max_connections=1 reopen=300 db_unique_name="oradgphy" net_timeout=30"

log_archive_dest_2 = "valid_for=(all_logfiles,primary_role)"

log_archive_dest_3 = "SERVICE=tns_oradglg LGWR ASYNC db_unique_name=oradglg valid_for=(ONLINE_LOGFILES,PRIMARY_ROLE)"

log_archive_dest_4 = "SERVICE=tns_oradgss LGWR ASYNC db_unique_name=oradgss valid_for=(ONLINE_LOGFILES,PRIMARY_ROLE)"

log_archive_dest_state_1 = "ENABLE"

log_archive_dest_state_2 = "ENABLE"

log_archive_dest_state_3 = "defer"

log_archive_dest_state_4 = "defer"

log_archive_min_succeed_dest= 1

fal_client = "oradg11g"

fal_server = "tns_oradgphy_dgmgrl"

log_archive_trace = 0

log_archive_config = "dg_config=(oradg11g,oradgphy)"

log_archiveformat = "%t%s_%r.dbf"

log_archive_max_processes= 4

archive_lag_target = 0

db_recovery_file_dest = "/u01/app/oracle/flash_recovery_area"

db_recovery_file_dest_size= 4122M

standby_file_management = "AUTO"

undo_tablespace = "UNDOTBS1"

remote_login_passwordfile= "EXCLUSIVE"

db_domain = "lhr.com"

global_names = TRUE

dispatchers = "(PROTOCOL=TCP) (SERVICE=oradg11gXDB)"

audit_file_dest = "/u01/app/oracle/admin/oradg11g/adump"

audit_trail = "DB"

db_name = "oradg11g"

db_unique_name = "oradg11g"

open_cursors = 300

dg_broker_start = TRUE

diagnostic_dest = "/u01/app/oracle"

Mon Sep 28 15:26:38 2015

PMON started with pid=2, OS id=26102

Mon Sep 28 15:26:38 2015

PSP0 started with pid=3, OS id=26104

Mon Sep 28 15:26:39 2015

Using STANDBY_ARCHIVE_DEST parameter default value as USE_DB_RECOVERY_FILE_DEST

destination database instance is 'started' not 'mounted'

Mon Sep 28 15:26:39 2015

VKTM started with pid=4, OS id=26112 at elevated priority

VKTM running at (1)millisec precision with DBRM quantum (100)ms

Mon Sep 28 15:26:39 2015

GEN0 started with pid=5, OS id=26116

Mon Sep 28 15:26:39 2015

DIAG started with pid=6, OS id=26118

Mon Sep 28 15:26:40 2015

DBRM started with pid=7, OS id=26120

Mon Sep 28 15:26:40 2015

DIA0 started with pid=8, OS id=26122

Mon Sep 28 15:26:40 2015

MMAN started with pid=9, OS id=26124

Mon Sep 28 15:26:40 2015

DBW0 started with pid=10, OS id=26126

Mon Sep 28 15:26:40 2015

LGWR started with pid=11, OS id=26128

Mon Sep 28 15:26:40 2015

CKPT started with pid=12, OS id=26130

Mon Sep 28 15:26:40 2015

SMON started with pid=13, OS id=26132

Mon Sep 28 15:26:40 2015

RECO started with pid=14, OS id=26134

Mon Sep 28 15:26:40 2015

MMON started with pid=15, OS id=26136

Mon Sep 28 15:26:40 2015

MMNL started with pid=16, OS id=26138

starting up 1 dispatcher(s) for network address '(ADDRESS=(PARTIAL=YES)(PROTOCOL=TCP))'...

starting up 1 shared server(s) ...

ORACLE_BASE from environment = /u01/app/grid

Mon Sep 28 15:26:40 2015

DMON started with pid=19, OS id=26145

Mon Sep 28 15:26:40 2015

alter database mount

ARCH: STARTING ARCH PROCESSES

Mon Sep 28 15:26:44 2015

ARC0 started with pid=22, OS id=26157

ARC0: Archival started

ARCH: STARTING ARCH PROCESSES COMPLETE

ARC0: STARTING ARCH PROCESSES

Successful mount of redo thread 1, with mount id 1419115888

Allocated 3981120 bytes in shared pool for flashback generation buffer

Starting background process RVWR

Mon Sep 28 15:26:45 2015

ARC1 started with pid=23, OS id=26159

Mon Sep 28 15:26:45 2015

RVWR started with pid=24, OS id=26161

Mon Sep 28 15:26:45 2015

ARC2 started with pid=25, OS id=26163

Mon Sep 28 15:26:45 2015

ARC3 started with pid=26, OS id=26165

ARC1: Archival started

ARC2: Archival started

ARC1: Becoming the 'no FAL' ARCH

ARC1: Becoming the 'no SRL' ARCH

ARC2: Becoming the heartbeat ARCH

Physical Standby Database mounted.

Lost write protection disabled

ARC2: Becoming the active heartbeat ARCH

Completed: alter database mount

alter database open

Data Guard Broker initializing...

Data Guard Broker initialization complete

AUDIT_TRAIL initialization parameter is changed to OS, as DB is NOT compatible for database opened with read-only access

Beginning standby crash recovery.

Serial Media Recovery started

Managed Standby Recovery starting Real Time Apply

Media Recovery Log /u01/app/oracle/flash_recovery_area/ORADG11G/archivelog/2015_09_28/o1_mf_1_145c0ktx3cj.arc

Media Recovery Log /u01/app/oracle/flash_recovery_area/ORADG11G/archivelog/2015_09_28/o1_mf_1_146c0ktx6mn.arc

Identified End-Of-Redo (switchover) for thread 1 sequence 146 at SCN 0x0.262c94

Resetting standby activation ID 0 (0x0)

Incomplete Recovery applied until change 2501780 time 09/28/2015 15:26:30

Completed standby crash recovery.

SMON: enabling cache recovery

Mon Sep 28 15:26:46 2015

RFS[1]: Assigned to RFS process 26177

RFS[1]: Opened log for thread 1 sequence 148 dbid 1403587593 branch 886695024

Archived Log entry 504 added for thread 1 sequence 148 rlc 886695024 ID 0x54960fb7 dest 2:

Dictionary check beginning

Mon Sep 28 15:26:46 2015

RFS[2]: Assigned to RFS process 26179

RFS[2]: Opened log for thread 1 sequence 147 dbid 1403587593 branch 886695024

Archived Log entry 505 added for thread 1 sequence 147 rlc 886695024 ID 0x54960fb7 dest 2:

Dictionary check complete

Database Characterset is ZHS16GBK

No Resource Manager plan active

replication_dependency_tracking turned off (no async multimaster replication found)

Physical standby database opened for read only access.

RFS[2]: Selected log 4 for thread 1 sequence 149 dbid 1403587593 branch 886695024

Completed: alter database open

Archived Log entry 506 added for thread 1 sequence 149 ID 0x54960fb7 dest 1:

Mon Sep 28 15:26:46 2015

db_recovery_file_dest_size of 4122 MB is 6.96% used. This is a

user-specified limit on the amount of space that will be used by this

database for recovery-related files, and does not reflect the amount of

space available in the underlying filesystem or ASM diskgroup.

Mon Sep 28 15:26:46 2015

Primary database is in MAXIMUM PERFORMANCE mode

RFS[3]: Assigned to RFS process 26185

RFS[3]: Selected log 4 for thread 1 sequence 150 dbid 1403587593 branch 886695024

ARC3: Archival started

ARC0: STARTING ARCH PROCESSES COMPLETE

Starting Data Guard Broker (DMON)

Mon Sep 28 15:26:48 2015

INSV started with pid=30, OS id=26191

Mon Sep 28 15:26:51 2015

NSV1 started with pid=31, OS id=26199

Mon Sep 28 15:26:55 2015

RSM0 started with pid=32, OS id=26208

ALTER SYSTEM SET log_archive_dest_state_1='ENABLE' SCOPE=BOTH;

ALTER SYSTEM SET log_archive_trace=0 SCOPE=BOTH SID='oradg11g';

ALTER SYSTEM SET log_archiveformat='%t%s_%r.dbf' SCOPE=SPFILE SID='oradg11g';

ALTER SYSTEM SET standby_file_management='AUTO' SCOPE=BOTH SID='*';

ALTER SYSTEM SET archive_lag_target=0 SCOPE=BOTH SID='*';

ALTER SYSTEM SET log_archive_max_processes=4 SCOPE=BOTH SID='*';

ALTER SYSTEM SET log_archive_min_succeed_dest=1 SCOPE=BOTH SID='*';

ALTER SYSTEM SET db_file_name_convert='oradgphy','oradg11g' SCOPE=SPFILE;

ALTER SYSTEM SET log_file_name_convert='oradgphy','oradg11g' SCOPE=SPFILE;

ALTER SYSTEM SET fal_server='tns_oradgphy_dgmgrl' SCOPE=BOTH;

ALTER DATABASE RECOVER MANAGED STANDBY DATABASE THROUGH ALL SWITCHOVER DISCONNECT USING CURRENT LOGFILE

Attempt to start background Managed Standby Recovery process (oradg11g)

Mon Sep 28 15:26:59 2015

MRP0 started with pid=33, OS id=26214

MRP0: Background Managed Standby Recovery process started (oradg11g)

started logmerger process

Mon Sep 28 15:27:04 2015

Managed Standby Recovery starting Real Time Apply

Parallel Media Recovery started with 2 slaves

Waiting for all non-current ORLs to be archived...

All non-current ORLs have been archived.

Clearing online redo logfile 1 /u01/app/oracle/oradata/oradg11g/redo01.log

Clearing online log 1 of thread 1 sequence number 150

Clearing online redo logfile 1 complete

Clearing online redo logfile 2 /u01/app/oracle/oradata/oradg11g/redo02.log

Clearing online log 2 of thread 1 sequence number 146

Mon Sep 28 15:27:05 2015

Completed: ALTER DATABASE RECOVER MANAGED STANDBY DATABASE THROUGH ALL SWITCHOVER DISCONNECT USING CURRENT LOGFILE

Clearing online redo logfile 2 complete

Clearing online redo logfile 3 /u01/app/oracle/oradata/oradg11g/redo03.log

Clearing online log 3 of thread 1 sequence number 149

Clearing online redo logfile 3 complete

Mon Sep 28 15:27:07 2015

RFS[3]: Selected log 5 for thread 1 sequence 151 dbid 1403587593 branch 886695024

Mon Sep 28 15:27:07 2015

Archived Log entry 507 added for thread 1 sequence 150 ID 0x54960fb7 dest 1:

Media Recovery Log /u01/app/oracle/flash_recovery_area/ORADG11G/archivelog/2015_09_28/o1_mf_1_147c0ktxp86.arc

Media Recovery Log /u01/app/oracle/flash_recovery_area/ORADG11G/archivelog/2015_09_28/o1_mf_1_148c0ktxp70.arc

Media Recovery Log /u01/app/oracle/flash_recovery_area/ORADG11G/archivelog/2015_09_28/o1_mf_1_149c0ktxpgt.arc

Media Recovery Log /u01/app/oracle/flash_recovery_area/ORADG11G/archivelog/2015_09_28/o1_mf_1_150c0ktycgh.arc

Media Recovery Waiting for thread 1 sequence 151 (in transit)

Recovery of Online Redo Log: Thread 1 Group 5 Seq 151 Reading mem 0

Mem# 0: /u01/app/oracle/oradata/oradg11g/standby_redo05.log

备库告警日志：

Mon Sep 28 15:26:24 2015

Archived Log entry 128 added for thread 1 sequence 145 ID 0x5495956b dest 1:

Mon Sep 28 15:26:24 2015

Media Recovery Waiting for thread 1 sequence 146

Mon Sep 28 15:26:30 2015

RFS[6]: Assigned to RFS process 25998

RFS[6]: Selected log 4 for thread 1 sequence 146 dbid 1403587593 branch 886695024

Mon Sep 28 15:26:30 2015

Archived Log entry 129 added for thread 1 sequence 146 ID 0x5495956b dest 1:

Mon Sep 28 15:26:30 2015

ALTER DATABASE RECOVER MANAGED STANDBY DATABASE CANCEL

MRP0: Background Media Recovery cancelled with status 16037

Errors in file /u01/app/oracle/diag/rdbms/oradgphy/oradgphy/trace/oradgphy_pr00_24252.trc:

ORA-16037: user requested cancel of managed recovery operation

Managed Standby Recovery not using Real Time Apply

Recovery interrupted!

Mon Sep 28 15:26:31 2015

MRP0: Background Media Recovery process shutdown (oradgphy)

Managed Standby Recovery Canceled (oradgphy)

Completed: ALTER DATABASE RECOVER MANAGED STANDBY DATABASE CANCEL

Database not available for switchover

End-Of-REDO archived log file has not been recovered

Incomplete recovery SCN:0:2481770 archive SCN:0:2501780

ALTER DATABASE RECOVER MANAGED STANDBY DATABASE THROUGH LAST SWITCHOVER NODELAY

Media Recovery Start: Managed Standby Recovery (oradgphy)

started logmerger process

Mon Sep 28 15:26:32 2015

Managed Standby Recovery not using Real Time Apply

Parallel Media Recovery started with 2 slaves

Media Recovery Log /u01/app/oracle/flash_recovery_area/ORADGPHY/archivelog/2015_09_28/o1_mf_1_146c0ktx6n6.arc

Identified End-Of-Redo (switchover) for thread 1 sequence 146 at SCN 0x0.262c94

Resetting standby activation ID 1419089259 (0x5495956b)

Media Recovery End-Of-Redo indicator encountered

Media Recovery Applied through change 2501780

Media Recovery Complete: End-Of-REDO (oradgphy)

Attempt to set limbo arscn 0:2501780 irscn 0:2501780

Completed: ALTER DATABASE RECOVER MANAGED STANDBY DATABASE THROUGH LAST SWITCHOVER NODELAY

ALTER DATABASE COMMIT TO SWITCHOVER TO PRIMARY WAIT WITH SESSION SHUTDOWN

ALTER DATABASE SWITCHOVER TO PRIMARY (oradgphy)

Maximum wait for role transition is 15 minutes.

krsv_proc_kill: Killing 2 processes (all RFS)

All dispatchers and shared servers shutdown

CLOSE: killing server sessions.

CLOSE: all sessions shutdown successfully.

Mon Sep 28 15:26:34 2015

SMON: disabling cache recovery

Backup controlfile written to trace file /u01/app/oracle/diag/rdbms/oradgphy/oradgphy/trace/oradgphy_rsm0_24244.trc

SwitchOver after complete recovery through change 2501780

Online log /u01/app/oracle/oradata/oradgphy/redo01.log: Thread 1 Group 1 was previously cleared

Online log /u01/app/oracle/oradata/oradgphy/redo02.log: Thread 1 Group 2 was previously cleared

Online log /u01/app/oracle/oradata/oradgphy/redo03.log: Thread 1 Group 3 was previously cleared

Standby became primary SCN: 2501778

AUDIT_TRAIL initialization parameter is changed back to its original value as specified in the parameter file.

Switchover: Complete - Database mounted as primary

Completed: ALTER DATABASE COMMIT TO SWITCHOVER TO PRIMARY WAIT WITH SESSION SHUTDOWN

Mon Sep 28 15:26:36 2015

idle dispatcher 'D000' terminated, pid = (17, 1)

ALTER DATABASE OPEN

Data Guard Broker initializing...

Mon Sep 28 15:26:37 2015

Assigning activation ID 1419120567 (0x54960fb7)

Mon Sep 28 15:26:37 2015

ARC3: Becoming the 'no SRL' ARCH

Thread 1 advanced to log sequence 148 (thread open)

ARC0: Becoming the 'no SRL' ARCH

Thread 1 opened at log sequence 148

Current log# 2 seq# 148 mem# 0: /u01/app/oracle/oradata/oradgphy/redo02.log

Successful open of redo thread 1

MTTR advisory is disabled because FAST_START_MTTR_TARGET is not set

SMON: enabling cache recovery

Archived Log entry 130 added for thread 1 sequence 147 ID 0x54960fb7 dest 1:

ARC3: Becoming the 'no SRL' ARCH

Mon Sep 28 15:26:37 2015

NSA2 started with pid=17, OS id=26022

Mon Sep 28 15:26:37 2015

***********************************************************************

Fatal NI connect error 12537, connecting to:

(DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=192.168.59.130)(PORT=1521))(CONNECT_DATA=(SERVER=DEDICATED)(SERVICE_NAME=oradg11g_DGMGRL.lhr.com)(CID=(PROGRAM=oracle)(HOST=rhel6_lhr)(USER=grid))))

VERSION INFORMATION:

TNS for Linux: Version 11.2.0.3.0 - Production

TCP/IP NT Protocol Adapter for Linux: Version 11.2.0.3.0 - Production

Time: 28-SEP-2015 15:26:37

Tracing not turned on.

Tns error struct:

ns main err code: 12537

***********************************************************************

Fatal NI connect error 12537, connecting to:

(DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=192.168.59.130)(PORT=1521))(CONNECT_DATA=(SERVER=DEDICATED)(SERVICE_NAME=oradg11g_DGMGRL.lhr.com)(CID=(PROGRAM=oracle)(HOST=rhel6_lhr)(USER=grid))))

VERSION INFORMATION:

TNS for Linux: Version 11.2.0.3.0 - Production

TCP/IP NT Protocol Adapter for Linux: Version 11.2.0.3.0 - Production

Time: 28-SEP-2015 15:26:37

Tracing not turned on.

Tns error struct:

ns main err code: 12537

[24244] Successfully onlined Undo Tablespace 2.

Undo initialization finished serial:0 start:21508174 end:21508224 diff:50 (0 seconds)

Dictionary check beginning

TNS-12537: TNS:connection closed

TNS-12537: TNS:connection closed

ns secondary err code: 12560

nt main err code: 507

ns secondary err code: 12560

nt main err code: 507

TNS-00507: Connection closed

nt secondary err code: 0

nt OS err code: 0

TNS-00507: Connection closed

nt secondary err code: 0

nt OS err code: 0

***********************************************************************

Fatal NI connect error 12537, connecting to:

(DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=192.168.59.130)(PORT=1521))(CONNECT_DATA=(SERVER=DEDICATED)(SERVICE_NAME=oradg11g_DGMGRL.lhr.com)(CID=(PROGRAM=oracle)(HOST=rhel6_lhr)(USER=grid))))

VERSION INFORMATION:

TNS for Linux: Version 11.2.0.3.0 - Production

TCP/IP NT Protocol Adapter for Linux: Version 11.2.0.3.0 - Production

Time: 28-SEP-2015 15:26:37

Tracing not turned on.

Tns error struct:

ns main err code: 12537

TNS-12537: TNS:connection closed

ns secondary err code: 12560

nt main err code: 507

TNS-00507: Connection closed

nt secondary err code: 0

nt OS err code: 0

Dictionary check complete

Verifying file header compatibility for 11g tablespace encryption..

Verifying 11g file header compatibility for tablespace encryption completed

SMON: enabling tx recovery

Database Characterset is ZHS16GBK

Starting background process SMCO

***********************************************************************

Fatal NI connect error 12537, connecting to:

(DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=192.168.59.130)(PORT=1521))(CONNECT_DATA=(SERVER=DEDICATED)(SERVICE_NAME=oradg11g_DGMGRL.lhr.com)(CID=(PROGRAM=oracle)(HOST=rhel6_lhr)(USER=grid))))

VERSION INFORMATION:

TNS for Linux: Version 11.2.0.3.0 - Production

TCP/IP NT Protocol Adapter for Linux: Version 11.2.0.3.0 - Production

Time: 28-SEP-2015 15:26:37

Tracing not turned on.

Tns error struct:

ns main err code: 12537

TNS-12537: TNS:connection closed

ns secondary err code: 12560

nt main err code: 507

TNS-00507: Connection closed

nt secondary err code: 0

nt OS err code: 0

***********************************************************************

Fatal NI connect error 12537, connecting to:

(DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=192.168.59.130)(PORT=1521))(CONNECT_DATA=(SERVER=DEDICATED)(SERVICE_NAME=oradg11g_DGMGRL.lhr.com)(CID=(PROGRAM=oracle)(HOST=rhel6_lhr)(USER=grid))))

VERSION INFORMATION:

TNS for Linux: Version 11.2.0.3.0 - Production

TCP/IP NT Protocol Adapter for Linux: Version 11.2.0.3.0 - Production

Time: 28-SEP-2015 15:26:37

Tracing not turned on.

Tns error struct:

ns main err code: 12537

TNS-12537: TNS:connection closed

ns secondary err code: 12560

nt main err code: 507

TNS-00507: Connection closed

nt secondary err code: 0

nt OS err code: 0

Error 12537 received logging on to the standby

FAL[server, ARC3]: Error 12537 creating remote archivelog file 'tns_oradg11g_dgmgrl'

FAL[server, ARC3]: FAL archive failed, see trace file.

ARCH: FAL archive failed. Archiver continuing

ORACLE Instance oradgphy - Archival Error. Archiver continuing.

Mon Sep 28 15:26:37 2015

SMCO started with pid=26, OS id=26033

***********************************************************************

Fatal NI connect error 12537, connecting to:

(DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=192.168.59.130)(PORT=1521))(CONNECT_DATA=(SERVER=DEDICATED)(SERVICE_NAME=oradg11g_DGMGRL.lhr.com)(CID=(PROGRAM=oracle)(HOST=rhel6_lhr)(USER=grid))))

VERSION INFORMATION:

TNS for Linux: Version 11.2.0.3.0 - Production

TCP/IP NT Protocol Adapter for Linux: Version 11.2.0.3.0 - Production

Time: 28-SEP-2015 15:26:37

Tracing not turned on.

Tns error struct:

ns main err code: 12537

TNS-12537: TNS:connection closed

ns secondary err code: 12560

nt main err code: 507

TNS-00507: Connection closed

nt secondary err code: 0

nt OS err code: 0

Error 12537 received logging on to the standby

PING[ARC2]: Heartbeat failed to connect to standby 'tns_oradg11g_dgmgrl'. Error is 12537.

No Resource Manager plan active

Starting background process QMNC

Mon Sep 28 15:26:37 2015

QMNC started with pid=27, OS id=26036

LOGSTDBY: Validating controlfile with logical metadata

LOGSTDBY: Validation complete

Completed: ALTER DATABASE OPEN

ALTER SYSTEM SET log_archive_trace=0 SCOPE=BOTH SID='oradgphy';

ALTER SYSTEM SET log_archiveformat='%t%s_%r.dbf' SCOPE=SPFILE SID='oradgphy';

Starting background process CJQ0

Mon Sep 28 15:26:37 2015

CJQ0 started with pid=32, OS id=26050

ALTER SYSTEM SET standby_file_management='AUTO' SCOPE=BOTH SID='*';

ALTER SYSTEM SET archive_lag_target=0 SCOPE=BOTH SID='*';

ALTER SYSTEM SET log_archive_max_processes=4 SCOPE=BOTH SID='*';

ALTER SYSTEM SET log_archive_min_succeed_dest=1 SCOPE=BOTH SID='*';

ALTER SYSTEM SET db_file_name_convert='oradg11g','oradgphy' SCOPE=SPFILE;

ALTER SYSTEM SET log_file_name_convert='oradg11g','oradgphy' SCOPE=SPFILE;

ARC2: STARTING ARCH PROCESSES

ALTER SYSTEM SET log_archive_dest_state_2='ENABLE' SCOPE=BOTH;

ALTER SYSTEM ARCHIVE LOG

Mon Sep 28 15:26:38 2015

ARC4 started with pid=28, OS id=26052

ARC4: Archival started

ARC2: STARTING ARCH PROCESSES COMPLETE

PING[ARC2]: Heartbeat failed to connect to standby 'tns_oradg11g_dgmgrl'. Error is 16058.

Thread 1 advanced to log sequence 149 (LGWR switch)

Current log# 3 seq# 149 mem# 0: /u01/app/oracle/oradata/oradgphy/redo03.log

Archived Log entry 131 added for thread 1 sequence 148 ID 0x54960fb7 dest 1:

Mon Sep 28 15:26:41 2015

***********************************************************************

Fatal NI connect error 12514, connecting to:

(DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=192.168.59.130)(PORT=1521))(CONNECT_DATA=(SERVER=DEDICATED)(SERVICE_NAME=oradg11g_DGB.lhr.com)(INSTANCE_NAME=oradg11g)(CID=(PROGRAM=oracle)(HOST=rhel6_lhr)(USER=grid))))

VERSION INFORMATION:

TNS for Linux: Version 11.2.0.3.0 - Production

TCP/IP NT Protocol Adapter for Linux: Version 11.2.0.3.0 - Production

Time: 28-SEP-2015 15:26:41

Tracing not turned on.

Tns error struct:

ns main err code: 12564

TNS-12564: TNS:connection refused

ns secondary err code: 0

nt main err code: 0

nt secondary err code: 0

nt OS err code: 0

***********************************************************************

Fatal NI connect error 12514, connecting to:

(DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=192.168.59.130)(PORT=1521))(CONNECT_DATA=(SERVER=DEDICATED)(SERVICE_NAME=oradg11g_DGB.lhr.com)(INSTANCE_NAME=oradg11g)(CID=(PROGRAM=oracle)(HOST=rhel6_lhr)(USER=grid))))

VERSION INFORMATION:

TNS for Linux: Version 11.2.0.3.0 - Production

TCP/IP NT Protocol Adapter for Linux: Version 11.2.0.3.0 - Production

Time: 28-SEP-2015 15:26:41

Tracing not turned on.

Tns error struct:

ns main err code: 12564

TNS-12564: TNS:connection refused

ns secondary err code: 0

nt main err code: 0

nt secondary err code: 0

nt OS err code: 0

***********************************************************************

Fatal NI connect error 12514, connecting to:

(DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=192.168.59.130)(PORT=1521))(CONNECT_DATA=(SERVER=DEDICATED)(SERVICE_NAME=oradg11g_DGB.lhr.com)(INSTANCE_NAME=oradg11g)(CID=(PROGRAM=oracle)(HOST=rhel6_lhr)(USER=grid))))

VERSION INFORMATION:

TNS for Linux: Version 11.2.0.3.0 - Production

TCP/IP NT Protocol Adapter for Linux: Version 11.2.0.3.0 - Production

Time: 28-SEP-2015 15:26:41

Tracing not turned on.

Tns error struct:

ns main err code: 12564

TNS-12564: TNS:connection refused

ns secondary err code: 0

nt main err code: 0

nt secondary err code: 0

nt OS err code: 0

***********************************************************************

Fatal NI connect error 12514, connecting to:

(DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=192.168.59.130)(PORT=1521))(CONNECT_DATA=(SERVER=DEDICATED)(SERVICE_NAME=oradg11g_DGB.lhr.com)(CID=(PROGRAM=oracle)(HOST=rhel6_lhr)(USER=grid))))

VERSION INFORMATION:

TNS for Linux: Version 11.2.0.3.0 - Production

TCP/IP NT Protocol Adapter for Linux: Version 11.2.0.3.0 - Production

Time: 28-SEP-2015 15:26:42

Tracing not turned on.

Tns error struct:

ns main err code: 12564

TNS-12564: TNS:connection refused

ns secondary err code: 0

nt main err code: 0

nt secondary err code: 0

nt OS err code: 0

***********************************************************************

Fatal NI connect error 12514, connecting to:

(DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=192.168.59.130)(PORT=1521))(CONNECT_DATA=(SERVER=DEDICATED)(SERVICE_NAME=oradg11g_DGB.lhr.com)(CID=(PROGRAM=oracle)(HOST=rhel6_lhr)(USER=grid))))

VERSION INFORMATION:

TNS for Linux: Version 11.2.0.3.0 - Production

TCP/IP NT Protocol Adapter for Linux: Version 11.2.0.3.0 - Production

Time: 28-SEP-2015 15:26:42

Tracing not turned on.

Tns error struct:

ns main err code: 12564

TNS-12564: TNS:connection refused

ns secondary err code: 0

nt main err code: 0

nt secondary err code: 0

nt OS err code: 0

***********************************************************************

Fatal NI connect error 12514, connecting to:

(DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=192.168.59.130)(PORT=1521))(CONNECT_DATA=(SERVER=DEDICATED)(SERVICE_NAME=oradg11g_DGB.lhr.com)(CID=(PROGRAM=oracle)(HOST=rhel6_lhr)(USER=grid))))

VERSION INFORMATION:

TNS for Linux: Version 11.2.0.3.0 - Production

TCP/IP NT Protocol Adapter for Linux: Version 11.2.0.3.0 - Production

Time: 28-SEP-2015 15:26:42

Tracing not turned on.

Tns error struct:

ns main err code: 12564

TNS-12564: TNS:connection refused

ns secondary err code: 0

nt main err code: 0

nt secondary err code: 0

nt OS err code: 0

ARC3: Becoming the 'no SRL' ARCH

Mon Sep 28 15:26:44 2015

ARC0: Becoming the 'no SRL' ARCH

Shutting down archive processes

ARCH shutting down

ARC4: Archival stopped

Mon Sep 28 15:26:46 2015

ALTER SYSTEM SET log_archive_dest_state_2='ENABLE' SCOPE=MEMORY SID='*';

ARC0: Becoming the 'no SRL' ARCH

ARC3: Becoming the 'no SRL' ARCH

Thread 1 advanced to log sequence 150 (LGWR switch)

Current log# 1 seq# 150 mem# 0: /u01/app/oracle/oradata/oradgphy/redo01.log

ARC3: Becoming the 'no SRL' ARCH

Archived Log entry 134 added for thread 1 sequence 149 ID 0x54960fb7 dest 1:

ARC0: Becoming the 'no SRL' ARCH

ARC0: Standby redo logfile selected for thread 1 sequence 149 for destination LOG_ARCHIVE_DEST_2

******************************************************************

LGWR: Setting 'active' archival for destination LOG_ARCHIVE_DEST_2

******************************************************************

LNS: Standby redo logfile selected for thread 1 sequence 150 for destination LOG_ARCHIVE_DEST_2

Mon Sep 28 15:27:05 2015

ALTER SYSTEM ARCHIVE LOG

Mon Sep 28 15:27:05 2015

Thread 1 cannot allocate new log, sequence 151

Checkpoint not complete

Current log# 1 seq# 150 mem# 0: /u01/app/oracle/oradata/oradgphy/redo01.log

Mon Sep 28 15:27:07 2015

ARC3: Becoming the 'no SRL' ARCH

Thread 1 advanced to log sequence 151 (LGWR switch)

Current log# 2 seq# 151 mem# 0: /u01/app/oracle/oradata/oradgphy/redo02.log

Archived Log entry 137 added for thread 1 sequence 150 ID 0x54960fb7 dest 1:

Mon Sep 28 15:27:07 2015

LNS: Standby redo logfile selected for thread 1 sequence 151 for destination LOG_ARCHIVE_DEST_2

至此，Data Guard Broker配置结束。

物理dg配置客户端无缝切换 (2)--Fast-Start Failover 的配置

实验环境介绍

相关知识点扫盲

Fast-Start Failover是建立在broker基础上的一个快速故障转换的机制，通过fast-start failover可以自动检测primary的故障，然后自动的failover到预先指定的standby上面，这样可以最大化的减少故障时间，提高数据库的可用性。

Fast-Start Failover是在broker的基础上再增加了一个单独的observer，用来监控primary和standby数据库的状态，一旦primary不可用，observer就会自动的切换到指定的standby上面。

FAST-START FAILOVER是ORACLE10G的一项新功能。这个功能可以实现当主库宕机时，预定的从库自动快速可靠地进行失败切换(FAILOVER)。切换完成之后，原来的主库恢复正常之后，将会自动地配置为从库。这的确是一项令DBA心动的功能，大大减少了DBA的维护和管理工作。尤其是减少了在出现突然问题时的心慌意乱和手忙脚乱。

实验部分

实验目标

Fast-Start Failover 配置并完成实验。

前提准备条件

primary 与 standby 启用flashback database

在主备库上开启闪回功能，否则后续报错16651 ：

[oracle@rhel6_lhr lhr]$ oerr ora 16651

16651, 0000, "requirements not met for enabling fast-start failover"

// *Cause: The attempt to enable fast-start failover could not be completed

// because one or more requirements were not met:

// - The Data Guard configuration must be in either MaxAvailability

// or MaxPerformance protection mode.

// - The LogXptMode property for both the primary database and

// the fast-start failover target standby database must be

// set to SYNC if the configuration protection mode is set to

// MaxAvailability mode.

// - The LogXptMode property for both the primary database and

// the fast-start failover target standby database must be

// set to ASYNC if the configuration protection mode is set to

// MaxPerformance mode.

// - The primary database and the fast-start failover target standby

// database must both have flashback enabled.

// - No valid target standby database was specified in the primary

// database FastStartFailoverTarget property prior to the attempt

// to enable fast-start failover, and more than one standby

// database exists in the Data Guard configuration.

// *Action: Retry the command after correcting the issue:

// - Set the Data Guard configuration to either MaxAvailability

// or MaxPerformance protection mode.

// - Ensure that the LogXptMode property for both the primary

// database and the fast-start failover target standby database

// are set to SYNC if the configuration protection mode is set to

// MaxAvailability.

// - Ensure that the LogXptMode property for both the primary

// database and the fast-start failover target standby database

// are set to ASYNC if the configuration protection mode is set to

// MaxPerformance.

// - Ensure that both the primary database and the fast-start failover

// target standby database have flashback enabled.

// - Set the primary database FastStartFailoverTarget property to

// the DB_UNIQUE_NAME value of the desired target standby database

// and the desired target standby database FastStartFailoverTarget

// property to the DB_UNIQUE_NAME value of the primary database.

主库：

[oracle@rhel6_lhr ~]$ sqlplus / as sysdba

SQL*Plus: Release 11.2.0.3.0 Production on 星期二 9月 29 09:50:17 2015

Copyright (c) 1982, 2011, Oracle. All rights reserved.

连接到:

Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - 64bit Production

With the Partitioning, OLAP, Data Mining and Real Application Testing options

09:50:17 SQL> set line 9999

09:50:18 SQL> col name format a10

col FS_FAILOVER_OBSERVER_HOST format a20

09:50:18 SQL> col DB_UNIQUE_NAME format a10

09:50:18 SQL> select dbid,name, DB_UNIQUE_NAME,current_scn,protection_mode,protection_level,database_role,force_logging,open_mode,switchover_status from v$database;

DBID NAME DBUNIQUE\ CURRENT_SCN PROTECTION_MODE PROTECTION_LEVEL DATABASE_ROLE FOR OPEN_MODE SWITCHOVER_STATUS

---------- ---------- ---------- ----------- -------------------- -------------------- ---------------- --- -------------------- --------------------

1403587593 ORADG11G oradg11g 2544025 MAXIMUM PERFORMANCE MAXIMUM PERFORMANCE PRIMARY YES READ WRITE TO STANDBY

已用时间: 00: 00: 00.01

09:50:18 SQL> SELECT d.DBID,

09:50:18 2 d.DB_UNIQUE_NAME,

09:50:18 3 d.FORCE_LOGGING,

09:50:18 4 d.FLASHBACK_ON,

09:50:18 5 d.FS_FAILOVER_STATUS,

09:50:18 6 d.FS_FAILOVER_CURRENT_TARGET,

09:50:18 7 d.FS_FAILOVER_THRESHOLD,

09:50:18 8 d.FS_FAILOVER_OBSERVER_PRESENT,

09:50:18 9 d.FS_FAILOVER_OBSERVER_HOST

09:50:18 10 FROM v$database d;

DBID DBUNIQUE\ FOR FLASHBACK_ON FS_FAILOVER_STATUS FS_FAILOVER_CURRENT_TARGET FS_FAILOVER_THRESHOLD FS_FAIL FS_FAILOVER_OBSERVER

---------- ---------- --- ------------------ ---------------------- ------------------------------ --------------------- ------- --------------------

1403587593 oradg11g YES YES DISABLED 0

已用时间: 00: 00: 00.01

09:50:24 SQL>

备库：

[oracle@rhel6_lhr ~]$ sqlplus / as sysdba

SQL*Plus: Release 11.2.0.3.0 Production on 星期二 9月 29 10:18:39 2015

Copyright (c) 1982, 2011, Oracle. All rights reserved.

连接到:

Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - 64bit Production

With the Partitioning, OLAP, Data Mining and Real Application Testing options

10:18:39 SQL> set line 9999

10:19:02 SQL> col name format a10

10:19:02 SQL> col FS_FAILOVER_OBSERVER_HOST format a20

10:19:02 SQL> col DB_UNIQUE_NAME format a15

10:19:02 SQL> select dbid,name, DB_UNIQUE_NAME,current_scn,protection_mode,protection_level,database_role,force_logging,open_mode,switchover_status from v$database;

DBID NAME DB_UNIQUE_NAME CURRENT_SCN PROTECTION_MODE PROTECTION_LEVEL DATABASE_ROLE FOR OPEN_MODE SWITCHOVER_STATUS

SELECT d.DBID,

---------- ---------- --------------- ----------- -------------------- -------------------- ---------------- --- -------------------- --------------------

1403587593 ORADG11G oradgphy 2545958 MAXIMUM PERFORMANCE MAXIMUM PERFORMANCE PHYSICAL STANDBY YES READ ONLY WITH APPLY NOT ALLOWED

已用时间: 00: 00: 00.00

10:19:02 SQL> 10:19:02 2 d.DB_UNIQUE_NAME,

10:19:02 3 d.FORCE_LOGGING,

10:19:02 4 d.FLASHBACK_ON,

10:19:02 5 d.FS_FAILOVER_STATUS,

10:19:02 6 d.FS_FAILOVER_CURRENT_TARGET,

10:19:02 7 d.FS_FAILOVER_THRESHOLD,

10:19:02 8 d.FS_FAILOVER_OBSERVER_PRESENT,

10:19:02 9 d.FS_FAILOVER_OBSERVER_HOST

10:19:02 10 FROM v$database d;

DBID DB_UNIQUE_NAME FOR FLASHBACK_ON FS_FAILOVER_STATUS FS_FAILOVER_CURRENT_TARGET FS_FAILOVER_THRESHOLD FS_FAIL FS_FAILOVER_OBSERVER

---------- --------------- --- ------------------ ---------------------- ------------------------------ --------------------- ------- --------------------

1403587593 oradgphy YES NO DISABLED 0

已用时间: 00: 00: 00.00

10:19:02 SQL> alter database flashback on;

alter database flashback on

*

第 1 行出现错误:

ORA-01153: 激活了不兼容的介质恢复

已用时间: 00: 00: 00.00

10:19:18 SQL> alter database recover managed standby database cancel;

数据库已更改。

已用时间: 00: 00: 01.01

10:19:34 SQL> alter database flashback on;

数据库已更改。

已用时间: 00: 00: 01.40

10:19:38 SQL> set line 9999

10:19:53 SQL> col name format a10

10:19:53 SQL> col FS_FAILOVER_OBSERVER_HOST format a20

10:19:53 SQL> col DB_UNIQUE_NAME format a15

10:19:53 SQL> select dbid,name, DB_UNIQUE_NAME,current_scn,protection_mode,protection_level,database_role,force_logging,open_mode,switchover_status from v$database;

DBID NAME DB_UNIQUE_NAME CURRENT_SCN PROTECTION_MODE PROTECTION_LEVEL DATABASE_ROLE FOR OPEN_MODE SWITCHOVER_STATUS

---------- ---------- --------------- ----------- -------------------- -------------------- ---------------- --- -------------------- --------------------

1403587593 ORADG11G oradgphy 2545994 MAXIMUM PERFORMANCE MAXIMUM PERFORMANCE PHYSICAL STANDBY YES READ ONLY NOT ALLOWED

已用时间: 00: 00: 00.00

10:19:53 SQL> SELECT d.DBID,

10:19:53 2 d.DB_UNIQUE_NAME,

10:19:53 3 d.FORCE_LOGGING,

10:19:53 4 d.FLASHBACK_ON,

10:19:53 5 d.FS_FAILOVER_STATUS,

10:19:53 6 d.FS_FAILOVER_CURRENT_TARGET,

10:19:53 7 d.FS_FAILOVER_THRESHOLD,

10:19:53 8 d.FS_FAILOVER_OBSERVER_PRESENT,

10:19:53 9 d.FS_FAILOVER_OBSERVER_HOST

10:19:53 10 FROM v$database d;

DBID DB_UNIQUE_NAME FOR FLASHBACK_ON FS_FAILOVER_STATUS FS_FAILOVER_CURRENT_TARGET FS_FAILOVER_THRESHOLD FS_FAIL FS_FAILOVER_OBSERVER

---------- --------------- --- ------------------ ---------------------- ------------------------------ --------------------- ------- --------------------

1403587593 oradgphy YES YES DISABLED 0

已用时间: 00: 00: 00.00

10:19:53 SQL>

确保broker配置为运行在MAX Availability模式

确保broker已经配置，同时运行模式为最大可用模式或者最大性能模式，如果数据库运行模式为最大可用模式，确保参数LogXptMode 配置为SYNC，如果是最大性能模式，则参数LogXptMode 应该为ASYNC

http://www.linuxidc.com/upload/2012_09/120909121264761.gif

[oracle@rhel6_lhr ~]$ dgmgrl sys/lhr@tns_oradg11g_dgmgrl

DGMGRL for Linux: Version 11.2.0.3.0 - 64bit Production

Copyright (c) 2000, 2009, Oracle. All rights reserved.

欢迎使用 DGMGRL, 要获取有关信息请键入 "help"。

已连接。

DGMGRL> show configuration

配置 - fsf_oradg11g_lhr

保护模式: MaxPerformance

数据库:

oradg11g - 主数据库

oradgphy - 物理备用数据库

快速启动故障转移: DISABLED

配置状态:

SUCCESS

DGMGRL> show resource verbose 'oradg11g' logxptmode on site 'oradg11g';

LogXptMode = 'ASYNC'

DGMGRL> show resource verbose 'oradgphy' logxptmode on site 'oradgphy';

LogXptMode = 'ASYNC'

DGMGRL> alter resource 'oradg11g' set property logxptmode='SYNC';

已更新属性 "logxptmode"

DGMGRL> alter resource 'oradgphy' set property logxptmode='SYNC';

已更新属性 "logxptmode"

DGMGRL> edit configuration set protection mode as maxavailability;

成功。

DGMGRL> show configuration

配置 - fsf_oradg11g_lhr

保护模式: MaxAvailability

数据库:

oradg11g - 主数据库

oradgphy - 物理备用数据库

快速启动故障转移: DISABLED

配置状态:

SUCCESS

DGMGRL> show resource verbose 'oradg11g' logxptmode on site 'oradg11g';

LogXptMode = 'SYNC'

DGMGRL> show resource verbose 'oradgphy' logxptmode on site 'oradgphy';

LogXptMode = 'SYNC'

DGMGRL>

主库告警日志：

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