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5、备库获取数据文件，初始化参数文件和口令文件后，对初始化参数文件进行相应修改
需要修改的参数如下：
db_unique_name=STANDBY
log_archive_dest_2='service=primary async valid_for=(all_logfiles,all_roles) db_unique_name=PRIMARY'
fal_server=primary
fal_client=standby
control_files='/u01/data/primary/primary/standby.ctl' 此处使用standby controlfile
简单来说，就是将这几个参数依据备库，与主库做一个映像般的调换
[oracle@tam dbs]$ cat initPRIMARY.ora
PRIMARY.__db_cache_size=1191182336
PRIMARY.__java_pool_size=16777216
PRIMARY.__large_pool_size=16777216
PRIMARY.__oracle_base='/u01/app'#ORACLE_BASE set from environment
PRIMARY.__pga_aggregate_target=1677721600
PRIMARY.__sga_target=1610612736
PRIMARY.__shared_io_pool_size=0
PRIMARY.__shared_pool_size=369098752
PRIMARY.__streams_pool_size=0
*.compatible='11.2.0'
*.control_files='/u01/data/primary/primary/standby.ctl'
*.core_dump_dest='/u01/app/oracle/admin/primary/cdump'
*.db_block_size=8192
*.db_name='PRIMARY'
*.db_recovery_file_dest='/u01/app/oracle/flash_recovery_area'
*.db_recovery_file_dest_size=53687091200
*.db_unique_name='STANDBY'
*.fal_client='STANDBY'
*.fal_server='PRIMARY'
*.log_archive_config='dg_config=(primary,standby)'
*.log_archive_dest_1='location=/u01/data/primary/arc'
*.log_archive_dest_2='service=primary async valid_for=(all_logfiles,all_roles) db_unique_name=PRIMARY'
*.log_archive_dest_state_1='enable'
*.log_archive_dest_state_2='enable'
*.log_archive_format='%t_%s_%r.arc'
*.log_archive_max_processes=10
*.log_file_name_convert='/u01/data/primary/arc','/u01/data/primary/arc'
*.nls_date_format='YYYY-MM-DD hh24:mi:ss'
*.nls_language='SIMPLIFIED CHINESE'
*.nls_territory='CHINA'
*.open_cursors=300
*.pga_aggregate_target=1669332992
*.processes=1000
*.remote_login_passwordfile='exclusive'
*.sessions=1105
*.sga_target=1610612736
*.standby_file_management='auto'
*.undo_management='AUTO'
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6、配置主库和备库中的监听服务和tnsnames.ora
主库：注意listener.ora文件中的SID_NAME是大小写敏感的，笔者因为忽略了这个问题，导致配置监听和启动监听成功后，一致不能远程登录...
[oracle@localhost admin]$ cat listener.ora
# listener.ora Network Configuration File: /u01/app/oracle/product/10.2.0.5/db_1/network/admin/listener.ora
# Generated by Oracle configuration tools.
SID_LIST_LISTENER =
(SID_LIST =
(SID_DESC =
(SID_NAME = PLSExtProc)
(ORACLE_HOME = /u01/app/oracle/product/11.2.0/db_1)
(PROGRAM = extproc)
)
(SID_DESC =
(SID_NAME = PRIMARY)
(ORACLE_HOME = /u01/app/oracle/product/11.2.0/db_1)
(GLOBAL_DBNAME = primary)
)
)
LISTENER =
(DESCRIPTION_LIST =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = 172.26.29.2)(PORT = 1521))
(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC0))
)
)
[oracle@localhost admin]$ cat tnsnames.ora
names.ora Network Configuration File: /u01/app/oracle/product/11.2.0/db_1/network/admin/tnsnames.ora
# Generated by Oracle configuration tools.
STANDBY =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = 172.26.29.4)(PORT = 1521))
(CONNECT_DATA =
(SERVER = DEDICATED)
(SERVICE_NAME = primary)
)
)
EXTPROC_CONNECTION_DATA =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PR