昨天去某客户那里搭建RAC-DG的物理备库，这里把大致流程再列举一下,为不涉及泄露隐私，主要参数已替换名称，具体路径也不一致。由于客户那边的环境不允许本机用网络连接内网，因此无法截下故障时各种报警日志和trace文件的截图，只能凭回忆大致写出。
1.主库在线修改spfile参数
alter database force logging;
alter system set log_archive_config='DG_CONFIG=(dg,dgdg)';
alter system set log_archive_dest_1='LOCATION=USE_DB_RECOVERY_FILE_DEST VALID_FOR=(ALL_LOGFILES,ALL_ROLES) DB_UNIQUE_NAME=dg';
alter system set log_archive_dest_2='SERVICE=dgdg LGWR ASYNC VALID_FOR=(ONLINE_LOGFILES,PRIMARY_ROLE) DB_UNIQUE_NAME=dgdg';
alter system set log_archive_dest_state_1='ENABLE';
alter system set log_archive_dest_state_2='ENABLE';
alter system set standby_file_management='AUTO';
alter system set fal_server='DGDG';
需重启参数：
alter system set db_file_name_convert='C:\app\administrator\oradata\dg','+data/dg/datafile' scope=spfile;
alter system set log_file_name_convert='C:\app\administrator\oradata\dg','+data/dg/onlinelog' scope=spfile;
2.创建pfile
SQL> create pfile from spfile;
3.修改备库用的pfile
*.__db_cache_size=0
*.__java_pool_size=0
*.__large_pool_size=0
*.__oracle_base='C:\app\administrator'#ORACLE_BASE set from environment
*.__pga_aggregate_target=0
*.__sga_target=0
*.__shared_io_pool_size=0
*.__shared_pool_size=0
*.__streams_pool_size=0
*.audit_file_dest='C:\app\administrator\admin\dg\adump'
*.audit_trail='db'
*.cluster_database=false --说明是单实例
数据库，否则启动会报错
*.compatible='11.2.0.0.0'
*.control_files='C:\app\administrator\oradata\dg\control01.ctl','C:\app\administrator\oradata\dg\control02.ctl'
*.db_block_size=8192
*.db_create_file_dest='C:\app\administrator\oradata'
*.db_domain=''
*.db_name='dg'
*.db_recovery_file_dest='C:\app\administrator\flash_recovery_area'
*.db_recovery_file_dest_size=3908042752
*.diagnostic_dest='C:\app\administrator'
*.dispadghers='(PROTOCOL=TCP) (SERVICE=DGXDB)'
*.fal_server='dg'
*.instance_number=1
*.log_archive_config='DG_CONFIG=(dg,dgdg)'
*.log_archive_dest_1='LOCATION=c:\archivelog VALID_FOR=(ALL_LOGFILES,ALL_ROLES) DB_UNIQUE_NAME=dgdg'
*.log_archive_dest_2='SERVICE=dg LGWR ASYNC VALID_FOR=(ONLINE_LOGFILES,PRIMARY_ROLE) DB_UNIQUE_NAME=dg'
*.log_archive_dest_state_1='ENABLE'
*.log_archive_dest_state_2='ENABLE'
*.log_archive_format='ARC%S_%R.%T'
*.memory_target=8577351680
*.nls_language='SIMPLIFIED CHINESE'
*.nls_territory='CHINA'
*.open_cursors=300
*.processes=150
*.remote_login_passwordfile='exclusive'
*.standby_file_management='AUTO'
*.undo_tablespace='UNDOTBS1'
*.db_file_name_convert='+data/dg/datafile','C:\app\administrator\oradata\dg'
*.log_file_name_convert='+data/dg/onlinelog','C:\app\administrator\oradata\dg'
*.db_unique_name=dgdg --复制过来的pfile如果不设置这个参数，默认的值是dg
4.修改tnsnamesl.ora
# tnsnames.ora Network Configuration File: C:\app\administrator\product\11.2.0\dbhome_1\network\admin\tnsnames.ora
# Generated by
Oracle configuration tools.
dg =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = dg-cluster-scan)(PORT = 1521))
(CONNECT_DATA =
(SERVER = DEDICATED)
(SERVICE_NAME = dg)
)
)
DGDG =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = dgP)(HOST = dgdg)(PORT = 1521))
)
(CONNECT_DATA =
(SERVICE_NAME = dg)
)
)
5.修改listener.ora(只给备库用，主库可以不配置静态监听)
# listener.ora Network