OracleDG之--构建PhysicalStandby

OracleDG之--构建PhysicalStandby系统环境：操作系统：RedHatEL4Oracle:Oracle10.2.0.1.0..

Oracle DG之--构建Physical Standby

系统环境：

操作系统： RedHat EL4

Oracle: Oracle 10.2.0.1.0

从以上图中所示：主库为bj（db_unique_name)，备库为sh。

案例分析：

本案例采用RMAN Duplicate方式建立standby database。

一、配置主备库初始化参数

主库的初始化参数：initbj.ora

[oracle@ocmtest dbs]$ more initbj.ora *.audit_file_dest='/u01/app/oracle/admin/bj/adump' *.background_dump_dest='/u01/app/oracle/admin/bj/bdump' *.compatible='10.2.0.1.0' *.control_files='/u01/app/oracle/oradata/bj/control01.ctl','/u01/app/oracle/oradata/bj/control02.ctl','/u01/app/oracle/oradata/bj/control 03.ctl' *.core_dump_dest='/u01/app/oracle/admin/bj/cdump' *.db_block_size=8192 *.db_domain='' *.db_file_multiblock_read_count=16 *.db_name='bj' *.db_recovery_file_dest='/u01/app/oracle/flash_recovery_area' *.db_recovery_file_dest_size=2147483648 *.dispatchers='(PROTOCOL=TCP) (SERVICE=bjXDB)' *.job_queue_processes=10 *.open_cursors=300 *.pga_aggregate_target=68157440 *.processes=150 *.remote_login_passwordfile='EXCLUSIVE' *.sga_target=205520896 *.undo_management='AUTO' *.undo_tablespace='UNDOTBS1' *.user_dump_dest='/u01/app/oracle/admin/bj/udump'

以下为DG配置参数:

DB_UNIQUE_NAME=bj LOG_ARCHIVE_COnFIG='DG_COnFIG=(bj,sh)' LOG_ARCHIVE_DEST_1='LOCATION=/u01/disk1/arch/bj/ VALID_FOR=(ALL_LOGFILES,ALL_ROLES) DB_UNIQUE_NAME=bj' LOG_ARCHIVE_DEST_2='SERVICE=sh LGWR ASYNC VALID_FOR=(ONLINE_LOGFILES,PRIMARY_ROLE) DB_UNIQUE_NAME=sh' LOG_ARCHIVE_DEST_STATE_1=ENABLE LOG_ARCHIVE_DEST_STATE_2=ENABLE REMOTE_LOGIN_PASSWORDFILE=EXCLUSIVE LOG_ARCHIVE_MAX_PROCESSES=3 FAL_SERVER=sh FAL_CLIENT=bj DB_FILE_NAME_COnVERT='/u01/app/oracle/oradata/sh/','/u01/app/oracle/oradata/bj/' LOG_FILE_NAME_COnVERT='/u01/app/oracle/oradata/sh/','/u01/app/oracle/oradata/bj/' STANDBY_FILE_MANAGEMENT=AUTO

备库的初始化参数：initsh.ora

[oracle@ocmtest1 dbs]$ more initsh.ora *.audit_file_dest='/u01/app/oracle/admin/sh/adump' *.background_dump_dest='/u01/app/oracle/admin/sh/bdump' *.compatible='10.2.0.1.0' *.control_file_record_keep_time=7 *.control_files='/u01/app/oracle/oradata/sh/control01.ctl','/u01/app/oracle/oradata/sh/control02.ctl','/u01/app/oracle/oradata/sh/control 03.ctl' *.core_dump_dest='/u01/app/oracle/admin/sh/cdump' *.db_block_size=8192 *.db_domain='' *.db_file_multiblock_read_count=16 *.DB_FILE_NAME_COnVERT='/u01/app/oracle/oradata/bj/','/u01/app/oracle/oradata/sh/' *.db_name='bj' *.db_recovery_file_dest='/u01/app/oracle/flash_recovery_area' *.db_recovery_file_dest_size=2147483648 *.open_cursors=300 *.pga_aggregate_target=68157440 *.processes=150 *.REMOTE_LOGIN_PASSWORDFILE='EXCLUSIVE' *.sga_target=205520896 *.undo_management='AUTO' *.undo_tablespace='UNDOTBS1' *.user_dump_dest='/u01/app/oracle/admin/sh/udump'

以下为DG配置参数:

*.DB_UNIQUE_NAME='sh' *.FAL_CLIENT='sh' *.FAL_SERVER='bj' *.job_queue_processes=10 *.LOG_ARCHIVE_COnFIG='DG_COnFIG=(bj,sh)' *.LOG_ARCHIVE_DEST_1='LOCATION=/u01/disk1/arch/sh/ VALID_FOR=(ALL_LOGFILES,ALL_ROLES) DB_UNIQUE_NAME=sh' *.LOG_ARCHIVE_DEST_2='SERVICE=bj LGWR ASYNC VALID_FOR=(ONLINE_LOGFILES,PRIMARY_ROLE) DB_UNIQUE_NAME=bj' *.LOG_ARCHIVE_DEST_STATE_1='ENABLE' *.LOG_ARCHIVE_DEST_STATE_2='ENABLE' *.log_archive_format='arch_%t_%s_%r.log' *.LOG_ARCHIVE_MAX_PROCESSES=3 *.LOG_FILE_NAME_COnVERT='/u01/app/oracle/oradata/bj/','/u01/app/oracle/oradata/sh/' *.STANDBY_FILE_MANAGEMENT='AUTO'

二、在主库上建立standby 日志

对于默认的最大性能的保护方式，可以不用建立standby redo logfiles；但建立standby redo logfiles可以更好的保存redo log；standby redo日志组组数应等于或多于redo log，日志的大小应该一致。 SQL> alter database add standby logfile group 4 ('/u01/app/oracle/oradata/bj/redo04.log') size 50m; SQL> alter database add standby logfile group 5 ('/u01/app/oracle/oradata/bj/redo05.log.rdo') size 50m; SQL> alter database add standby logfile group 6 ('/u01/app/oracle/oradata/bj/redo06.log') size 50m;