dataguard搭建-rac到单机

DG兼容列表：

Data Guard Support for Heterogeneous Primary and Physical Standbys in Same Data Guard Configuration (Doc ID 413484.1)

DG在IBM和sun之间的异构说明：

Using Oracle Data Guard between IBM AIX on Power systems and Oracle Solaris on SPARC systems (Doc ID 1982638.1)

简单点说就是linux可以到windows/soloaris x64，IBM可以和solaris sparc异构，hp unix只能自己玩；

这里举例linux x86_64　rac到单机之间的异构部署。

一 检查源端,打开归档

SQL>archive log list;#如果未打开，关闭数据库Shutdown immediate;#启动至mount状态Startup mount#开启归档SQL> alter database archivelog ; Database altered. #打开强制日志，不打开，使nologging选项时，备库的表会报错SQL> alter database force logging; Database altered.SQL> alter database open; Database altered.#检查SQL> archive log list;Database log mode              Archive ModeAutomatic archival             EnabledArchive destination            /data/archOldest online log sequence     12Next log sequence to archive   14Current log sequence           14SQL> select force_logging from v$database;FORCE---YES

二 更改参数

alter system set log_archive_config='DG_CONFIG=(db,standby)' scope=both;alter system set log_archive_dest='' scope=both;alter system set log_archive_dest_1='location=/data/arch' scope=spfile;--用归档传输alter system set log_archive_dest_2='service=standby arch valid_for=(online_logfiles,primary_role) db_unique_name=standby' scope=spfile;--首选在线日志传输，实时应用alter system set log_archive_dest_2='service=standby lgwr sync affirm valid_for=(online_logfiles,primary_role) db_unique_name=standby' scope=both;SQL> alter system set log_archive_max_processes=4 scope=both;SQL> alter system set fal_server=standby scope=both;SQL> alter system set fal_client=db scope=both;SQL> alter system set standby_file_management=auto scope=both;SQL> alter system set db_file_name_convert='+data','/data' scope=spfile;SQL> alter system set log_file_name_convert='+data','/data' scope=spfile;Sql>alter system set db_unique_name=db scope=spfile;#先不启用SQL>alter system set log_archive_dest_state_2=defer;

三 配置tnsnames

服务端$ORACLE_HOME/network/admin/tnsnames.ora

standby =  (DESCRIPTION =    (ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.84.17)(PORT = 1521))    (CONNECT_DATA =      (SERVER = DEDICATED)      (SERVICE_NAME = standby)    )  )

四 备份主库：

rman "target / nocatalog"run{configure default device type to disk;configure device type disk parallelism 1;backup as compressed backupset database format '/home/oracle/full_%s_%p_%T.bak' TAG fullbak_fordg;}

五 创建standby controlfile：

创建standby controlfile：

SQL> alter database create standby controlfile as '/home/oracle/standby.ctl';

六 创建pfile

create pfile='/data/backup/pfile.ora' from spfile;

主要修改db_unique_name

Fal_server

Fal_client

参考如下：

*.audit_file_dest='/opt/db/adump'*.audit_trail='none'*.cluster_database=false*.compatible='11.2.0.4.0'*.db_file_name_convert='+DATA','/data'*.log_file_name_convert='+DATA','/data'*.control_files='/u01/data/ctl_01.ctl'*.log_archive_config='DG_CONFIG=(db,standby)'*.db_block_size=8192*.db_create_file_dest='/data'*.db_domain=''*.db_files=200*.db_name='db'*.db_unique_name='standby'*.db_recovery_file_dest_size=53477376000*.db_recovery_file_dest=''*.deferred_segment_creation=FALSE*.diagnostic_dest='/u01/app/oracle'*.dispatchers='(PROTOCOL=TCP) (SERVICE=TCIS30XDB)'*.log_archive_dest_1='location=/data/arch valid_for=(all_logfiles,all_roles) db_unique_name=standby'*.open_cursors=100*.pga_aggregate_target=50MB*.processes=100*.remote_login_passwordfile='exclusive'*.sessions=150*.sga_target=100MB*.undo_tablespace='UNDOTBS1'*.fal_server=db

七 创建密钥文件

orapwd file=orapw$ORACLE_SID password=oracle

八 创建备库 listener.ora

SID_LIST_LISTENER =  (SID_LIST =    (SID_DESC =      (SID_NAME = PLSExtProc)      (ORACLE_HOME = /opt/product/11.2)      (PROGRAM = extproc)    )    (SID_DESC =      (GLOBAL_DBNAME = standby)      (ORACLE_HOME = /opt/product/11.2)      (SID_NAME = sid_name)    )  )

9 备机创建目录

mkdir /data/arch

mkdir /data/dg1

mkdir -p /u01/app/oracle/admin/standby/adump

更改~/.bash_profile

Export ORACLE_SID=standby

10启动及恢复

cp standby.ctl /data/standby/ctl01.ctlSQL> startup nomount;SQL> alter database mount standby database;rman target /catalog start with '/home/oracle/backup';Restore database;SQL>recover managed standby database disconnect from session;

11 备库添加standby log file;

alter database recover managed standby database cancelalter database add standby logfile thread 1 group 10 '+data(flashfile)' size 50m;alter database add standby logfile thread 1 group 11 '+data(flashfile)' size 50m;alter database add standby logfile thread 2 group 12 '+data(flashfile)' size 50m;alter database add standby logfile thread 2 group 13 '+data(flashfile)' size 50m;alter database add standby logfile group 14 '/u01/data/standbyredo09.log' size 50m;

#主库启用日志传送

SQL>alter system set log_archive_dest_state_2=enabled;

#模式为最大可用

SQL>alter database set standby database to maximize availability;alter database recover managed standby database cancel;alter database open;alter database recover managed standby database using current logfile disconnect from session;

12 检查

select process,client_process,sequence#,status from v$managed_standby;col  current_scn for 999999999999;select protection_mode,database_role,open_mode,current_scn from v$databasecol name for a50 ;col sequence# for 9999999;select name,sequence#,to_char(completion_time,'yyyy-mm-dd hh34:mi:ss') from v$archived_log order by 2;SELECT PROCESS, STATUS, THREAD#, SEQUENCE#, BLOCK#, BLOCKS FROM V$MANAGED_STANDBY;--主库查询 select sequence#,status from v$Log; col value for a30; col name for a13; col unit for a30; select name,value,unit,time_computed from v$dataguard_stats;SELECT * FROM V$STANDBY_EVENT_HISTOGRAM WHERE NAME = 'apply lag' AND COUNT > 0; col checkpoint_change# for 99999999999999; select name,checkpoint_change# from v$datafile; select name,checkpoint_change# from v$datafile_header;  SELECT DBID,       NAME,       TO_CHAR(CREATED, 'DD-MON-YYYY HH24:MI:SS') CREATED,       OPEN_MODE,       LOG_MODE,       TO_CHAR(CHECKPOINT_CHANGE#, '999999999999999') AS CHECKPOINT_CHANGE#,       CONTROLFILE_TYPE,       TO_CHAR(CONTROLFILE_CHANGE#, '999999999999999') AS CONTROLFILE_CHANGE#,       TO_CHAR(CONTROLFILE_TIME, 'DD-MON-YYYY HH24:MI:SS') CONTROLFILE_TIME,       TO_CHAR(RESETLOGS_CHANGE#, '999999999999999') AS RESETLOGS_CHANGE#,       TO_CHAR(RESETLOGS_TIME, 'DD-MON-YYYY HH24:MI:SS') RESETLOGS_TIME  FROM V$DATABASE;--sofar 单位为KB

select * from v$recovery_progress;--检查归档应用情况col name for a50 ;col sequence# for 9999999;select name,sequence#,to_char(completion_time,'yyyy-mm-dd hh34:mi:ss') from v$archived_log order by 2;SELECT PROCESS, STATUS, THREAD#, SEQUENCE#, BLOCK#, BLOCKS FROM V$MANAGED_STANDBY;select thread#,max(sequence#) maxseq from gv$archived_log group by thread# order by thread#;select * from v$archive_gap;--检查net_timeout的适当值select frequency,duration from v$redo_dest_resp_histogram where dest_id=2 and frequency>1;select recovery_mode from v$archive_dest_status where dest_id=2;