1参考

https://gavinsoorma.com/2010/03/11g-data-guard-broker-dgmgrl-configuration-quick-steps/

This note describes the commands used to create a Data Guard broker configuration using the command line dgmgrl interface. This can also be done via the Enterprise Manager Grid Control GUI as well and the assumption is that there is a Physical Standby database in place and redo transport and redo apply have already been configured and that both the Primary and Standby database are in sync.

Primary Database: genoa1_js

Standby Database: genoa1_fc

On both Primary as well as Standby database start the Data Guard Broker process

SQL> ALTER SYSTEM SET DG_BROKER_START=TRUE SCOPE=BOTH;System altered.

Edit the listener.ora on both nodes to add a static entry for DGMGRL

This is to prevent the ORA-12154 error which can be observed on startup of the standby database after performing a switchover.

Ensure that the GLOBAL_DBNAME is set to db_unique_name_DGMGRL.db_domain

SID_LIST_LISTENER =(SID_LIST =(SID_DESC =(GLOBAL_DBNAME = genoa1_js_dgmgrl)(ORACLE_HOME = /u01/oracle/product/11.1.0/db_1)(SID_NAME = genoa1))
)

Create the configuration

genoa1:/u01/oracle> dgmgrl
DGMGRL for IBM/AIX RISC System/6000: Version 11.1.0.7.0 - 64bit ProductionCopyright (c) 2000, 2005, Oracle. All rights reserved.Welcome to DGMGRL, type "help" for information.
DGMGRL> connect sys/xxxx
Connected.
DGMGRL> CREATE CONFIGURATION 'GenesisDR'
> AS
> PRIMARY DATABASE IS 'genoa1_js'
> CONNECT IDENTIFIER IS 'genoa1_js'
> ;
Configuration "GenesisDR" created with primary database "genoa1_js"

Add the Standby database to the configuration

DGMGRL>  ADD DATABASE
> 'genoa1_fc'
> AS
> CONNECT IDENTIFIER IS 'genoa1_fc'
> ;
Database "genoa1_fc" addedDGMGRL> SHOW CONFIGURATIONConfigurationName:                GenesisDREnabled:             NOProtection Mode:     MaxAvailabilityDatabases:genoa1_js - Primary databasegenoa1_fc - Physical standby databaseFast-Start Failover: DISABLEDCurrent status for "GenesisDR":
DISABLED

Enable the configuration

DGMGRL> ENABLE CONFIGURATION
Enabled.DGMGRL> SHOW CONFIGURATIONConfigurationName:                GenesisDREnabled:             YESProtection Mode:     MaxAvailabilityDatabases:genoa1_js - Primary databasegenoa1_fc - Physical standby databaseFast-Start Failover: DISABLEDCurrent status for "GenesisDR":
SUCCESS

View the Standby and Primary database properties

DGMGRL> show database genoa1_jsDatabaseName:            genoa1_jsRole:            PRIMARYEnabled:         YESIntended State:  TRANSPORT-ONInstance(s):genoa1Current status for "genoa1_js":
SUCCESSDGMGRL>  show database genoa1_fcDatabaseName:            genoa1_fcRole:            PHYSICAL STANDBYEnabled:         YESIntended State:  APPLY-ONInstance(s):genoa1Current status for "genoa1_fc":
SUCCESSDGMGRL> show database verbose  genoa1_fcDatabaseName:            genoa1_fcRole:            PHYSICAL STANDBYEnabled:         YESIntended State:  APPLY-ONInstance(s):genoa1Properties:DGConnectIdentifier             = 'genoa1_fc'ObserverConnectIdentifier       = ''LogXptMode                      = 'SYNC'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               = ''LogFileNameConvert              = ''FastStartFailoverTarget         = ''StatusReport                    = '(monitor)'InconsistentProperties          = '(monitor)'InconsistentLogXptProps         = '(monitor)'SendQEntries                    = '(monitor)'LogXptStatus                    = '(monitor)'RecvQEntries                    = '(monitor)'HostName                        = 'drou037'SidName                         = 'genoa1'StaticConnectIdentifier         = '(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=drou037)

(PORT=1521))(CONNECT_DATA=(SERVICE_NAME=genoa1_fc_DGMGRL)(INSTANCE_NAME=genoa1)(SERVER=DEDICATED)))' StandbyArchiveLocation = 'USE_DB_RECOVERY_FILE_DEST' AlternateLocation = '' LogArchiveTrace = '0' LogArchiveFormat = '%t_%s_%r.dbf' LatestLog = '(monitor)' TopWaitEvents = '(monitor)' Current status for "genoa1_fc": SUCCESS

Change the properties of a configured databaase

DGMGRL> EDIT DATABASE 'genoa1_js' SET PROPERTY 'LogXptMode'='SYNC';
Property "LogXptMode" updated

Performing a switchover

Note: In this case, currently the Primary Database is genoa1_fc and the Standby database is genoa1_js.

DGMGRL> switchover to 'genoa1_js'
Performing switchover NOW, please wait...
New primary database "genoa1_js" is opening...
Operation requires shutdown of instance "genoa1" on database "genoa1_fc"
Shutting down instance "genoa1"...
ORA-01109: database not openDatabase dismounted.
ORACLE instance shut down.
Operation requires startup of instance "genoa1" on database "genoa1_fc"
Starting instance "genoa1"...
ORACLE instance started.
Database mounted.
Switchover succeeded, new primary is "genoa1_js"DGMGRL> SHOW CONFIGURATION;ConfigurationName:                GenesisDREnabled:             YESProtection Mode:     MaxAvailabilityDatabases:genoa1_js - Primary databasegenoa1_fc - Physical standby databaseFast-Start Failover: DISABLEDCurrent status for "GenesisDR":
SUCCESS

Monitoring the Data Guard Broker Configuration

If we receive any error or warnings we cab obtain more information about the same ny running the commands as shown below. In this case there is no output seen because currently we are not experiencing any errors or warning.

DGMGRL> show database genoa1_js statusreport
STATUS REPORTINSTANCE_NAME   SEVERITY ERROR_TEXTDGMGRL>  show database genoa1_js logxptstatus
LOG TRANSPORT STATUS
PRIMARY_INSTANCE_NAME STANDBY_DATABASE_NAME               STATUSgenoa1            genoa1_fcDGMGRL> show database genoa1_js InconsistentProperties
INCONSISTENT PROPERTIESINSTANCE_NAME        PROPERTY_NAME         MEMORY_VALUE         SPFILE_VALUE         BROKER_VALUE

2.

.###########3

-> ORA-16857: standby disconnected from redo source for longer than specified threshold

Error code: ORA-16857