Configuration and application of Oracle10_Dataguard in Linux

DataGuard dual-node node1node21. Configure the network on node2, including the NIC mac address, ip address, dns name, and test the network. 2. Run terminal command -- en on node1.

DataGuard dual-node node1 node21. configure the network on node2, including the NIC mac address, ip address, dns name, and test the network. 2. Run terminal command -- en on node1.

DataGuard dual-node node1 node2
1. Configure the network on node2, including the NIC mac address, ip address, and dns name, and test the network
2. Run the terminal command -- env | grep PATH on node1.
3. Create a database on node1 and select a special database type.
4. Run the terminal command -- env | grep ORA on node1.
The global database name must be the same as that set by Oracle_sid in the configuration file.
5. If no default archive log is set on node1, alter system set db_recovery_file_dest = ''scope = spfile;
You must also enable the arch log process and manually create a directory and path for archiving logs.
(Mkdir-p/u01/app/arch add the relevant archive path/u01/app/arch on DBCA)

Note: After the default archive path is changed, it does not take effect immediately. You should regenerate the spfile file.
Create spfile = ''from pfile;

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Start database creation --- end
After completion
1. Run the terminal command on node1 -- ps-ef to view the process. The oracle service process appears.
Note: Check the id of/etc/hosts. The IP address must be configured for node1 and node2 under/etc/hosts.
Set shortcuts for hosts ^_^

2. netca (dbca) ----- netmgr & or
Create listener for the primary database
View listener --- run cd network/admin/In/oracle/
There is a listener. ora file.
Edit FILE command vi listener. ora
3. netca configuration tnsname. ora node1 and node2 both need to be configured (connected to the background service)
Note: In the slave database, you must create an identical database to copy the original one from the master database.
For details, see the following command to copy a database: RMAN duplicate.

Ps-ef | more: Check whether the configuration is successful. You can also view the result on the netca interface.
Ps-ef | grep oracle view Process
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1. Configure listener and tnsname on node2
2. Test the network communication between the two nodes after configuration. --------- sqlplus scott/tiger @ test2
Sqlplus scott/tiger @ test1

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Start configuring DataGuard
3.1 configure the master Database:
1. enable forced logging --- alter database force logging;
2. create a password file --- automatically created by oracle when dbca is configured
--- When the database is not in the open state, the user $ table is used when the database is in the open state.

3. setting master database initialization parameters --- main work
++
Db_unique_name = uqn_node1 --- custom name
Log_archive_config = 'dg _ config = (uqn_node1, uqn_node2 )'
Log_archive_dest_2 = 'service = lsnode2 --- tnsname
Valid_for = (ONLINE_LOGFILES, PRIMARY_ROLE)
Db_unique_name = uqn_node2'
LOG_ARCHIVE_DEST_STATE_1 = ENABLE
LOG_ARCHIVE_DEST_STATE_2 = ENABLE
Fal_server = lsnode2
Fal_client = lsnode1
STANDBY_FILE_MANAGEMENT = AUTO
*. Db_file_name_convert = '/u02/oradata/test1','/oradata/test1' *. log_file_name_convert = '/u02/oradata/test1','/oradata/test1'
4. enable archiving
Shutdown immediate;
Startup mount;
Alter database archivelog;
Alter database open;

3.2 Create master database-slave database (Primary-Standby)
1. Back up the data file of the master database ---- rman back up the backup database
2. Create a control file for the Standby Database
Startup mount;
Alter database create standby controlfile as '/u01/oradata/test1/standby. ctl ';
Alter database open;
Configure initialization parameters for the Standby Database
4. Copy files from the master database to the slave Database
Including datafiles, standby control file, and initial file
Ps: create pfile from spfile;
Before creating the oracle initialization parameter file, we used initdgdemo. ora
And the previous spfiledgdemo. ora file should be deleted.
DELETE command: rm-f spfiledgdemo. ora

Cp initdgdemo. ora/u02/oradata
Cp orapwdgdemo/u02/oradata
Check the files in the/u01/oradata directory.
Including arch, dgdemo, initdgdemo. ora, orapwdgdemo, boston. ctl
There are two methods: 1. Package and upload it using ftp
In the/u01 directory, 2.scp-r admin oradata root @ IP:/u01
5. Configure the environment for the standby Database
Before modifying the configuration file, perform the following operations:
Replace the control file under/oradata/with boston. ctl,
Under dgdemo
Rm-f control0 *
Mv ../boston. ctl./control01.ctl
Cp control01.ctl control02.ctl
Cp control01.ctl control03.ctl
Copy the initialization parameter file to/oracle/dbs.
Mv $ ORACLE_HOME/dbs/inittest1.ora.
Mv $ ORACLE_HOME/dbs/orapwtest1.

Setting backup database initialization parameters
*. Db_unique_name = uqn_node2 --- custom name
*. Log_archive_config = 'dg _ config = (uqn_node1, uqn_node2 )'
*. Log_archive_dest_1 = 'location =/u01/app/arch'
*. Log_archive_dest_2 = 'service = lsnode1 --- tnsname
Valid_for = (ONLINE_LOGFILES, PRIMARY_ROLE)
Db_unique_name = uqn_node1'
*. LOG_ARCHIVE_DEST_STATE_1 = ENABLE
*. LOG_ARCHIVE_DEST_STATE_2 = ENABLE
*. Fal_server = lsnode1
*. Fal_client = lsnode2
*. STANDBY_FILE_MANAGEMENT = AUTO
*. Db_file_name_convert = '/u01/app/oradata','/u01/app/oradata'
*. Log_file_name_convert = '/u01/app/oradata','/u01/app/oradata'
---------------- Instance
Test1. _ db_cache_size = 427819008
Test1. _ java_pool_size = 4194304
Test1. _ large_pool_size = 4194304
Test1. _ shared_pool_size = 167772160
Test1. _ streams_pool_size = 0
*. Audit_file_dest = '/u01/app/admin/test1/adump'
*. Background_dump_dest = '/u01/app/admin/test1/bdump'
*. Compatible = '10. 2.0.1.0'
*. Control_files = '/u01/app/oradata/control01.ctl', '/u01/app/oradata/control02.ctl', '/u01/app/oradata/control03.ctl'
*. Core_dump_dest = '/u01/app/admin/test1/cdump'
*. Db_block_size = 8192
*. Db_domain =''
*. Db_file_multiblock_read_count = 16
*. Db_name = 'test1'
*. Db_recovery_file_dest_size = 2147483648
*. Db_recovery_file_dest =''
*. Dispatchers = '(PROTOCOL = TCP) (SERVICE = test1XDB )'
*. Job_queue_processes = 10
*. Log_archive_start = TRUE
*. Open_cursors = 300
*. Pga_aggregate_target = 201326592
*. Processses = 150
*. Remote_login_passwordfile = 'clusive'
*. Sga_target = 605028352
*. Undo_management = 'auto'
*. Undo_tablespace = 'undotbs1'
*. User_dump_dest = '/u01/app/admin/test1/udump'
*. Db_unique_name = test1
*. Log_archive_config = 'dg _ config = (test1, dubdg )'
*. Log_archive_dest_1 = 'location =/u01/app/oradata'
*. Log_archive_dest_2 = 'service = dubdg2 valid_for = (online_logfiles, primary_role) db_unique_name = dubdg'
*. Log_archive_dest_state_1 = enable
*. Log_archive_dest_state_2 = enable
*. Fal_server = dubdg2
*. Fal_client = dubdg1
*. Standby_file_management = auto
*. Db_file_name_convert = '/u01/app/oradata','/u01/app/oradata'
*. Log_file_name_convert = '/u01/app/oradata','/u01/app/oradata'
For details, see the following command to copy a database: RMAN duplicate.

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