我的DATAGUARD实施文档
一、前期准备及备机安装:
通过获取到的主机信息规划备机数据库安装基础信息:(注:在安装备机时需要尽量保障与主机库信息一致,以下表格中的备机信息为根据主机信息规划的安装信息。)
类别 |
IP |
数据库名 |
数据库SID |
安装位置 |
版本 |
DATAGUARD安装情况 |
主机 |
10.10.60.60 |
PORTALDB |
PORTALDB |
D:\app |
11.2.0.1.0 64位 |
OK |
备机 |
10.10.60.61 |
PORTALDB |
PORTALDB1 |
D:\app |
11.2.0.1.0 64位 |
OK |
查询主机ORACLE版本命令:
SQL> select banner from sys.v_$version; |
查询DATAGUARD安装情况:
SQL> select * from v$option where parameter = 'Oracle Data Guard'; |
安装数据库(备机)
根据以上表格中规划的信息安装备机数据库,具体安装过程略。
二、备份主机数据库:
1.冷备数据库。(先关闭数据库及对应服务,之后将D:\app下的所有文件进行备份。
2.导出数据库。
exp system/密码inctype=complete file=E:\OracleBakup\Full.dmp FULL=Y
三、配置过程
1.修改主机日志为归档模式,并设置强制写日志。
C:\>sqlplus /nolog SQL>startup mount SQL>alter database archivelog; SQL>alter database open; SQL>alter database force logging; |
验证修改后的情况:
SQL> archive log list; 数据库日志模式存档模式 自动存档启用 存档终点 D:\app\Administrator\flash_recovery_area 最早的联机日志序列 43 下一个存档日志序列 45 当前日志序列 45 SQL> |
2.修改主机的init文件,由于默认spfile启动,先创建pfile:
Sql>create pfile from spfile; |
然后修改D:\app\Administrator\product\11.2.0\dbhome_1\database\INITportaldb.ora
以下文件内容中红色字体是新追加的内容,黑色是默认存在的内容。
portaldb.__db_cache_size=5368709120 portaldb.__java_pool_size=67108864 portaldb.__large_pool_size=33554432 portaldb.__oracle_base='D:\app\Administrator'#ORACLE_BASE set from environment portaldb.__pga_aggregate_target=5502926848 portaldb.__sga_target=8254390272 portaldb.__shared_io_pool_size=0 portaldb.__shared_pool_size=2617245696 portaldb.__streams_pool_size=67108864 *.audit_file_dest='D:\app\Administrator\admin\PORTALDB\adump' *.audit_trail='db' *.compatible='11.2.0.0.0' *.control_files='D:\app\Administrator\oradata\PORTALDB\control01.ctl','E:\oraclebackup\PORTALDB\control02.ctl' *.db_block_size=8192 *.db_domain='' *.db_name='PORTALDB' *.db_recovery_file_dest='E:\oraclebackup' *.db_recovery_file_dest_size=4102029312 *.diagnostic_dest='D:\app\Administrator' *.dispatchers='(PROTOCOL=TCP) (SERVICE=PORTALDBXDB)' *.job_queue_processes=1000 *.memory_target=13739491328 *.open_cursors=300 *.processes=150 *.remote_login_passwordfile='EXCLUSIVE' *.undo_tablespace='UNDOTBS1' DB_UNIQUE_NAME=PORTALDB LOG_ARCHIVE_CONFIG='DG_CONFIG=(PORTALDB,PORTALDB1)' LOG_ARCHIVE_DEST_1= 'LOCATION=D:\app\Administrator\flash_recovery_area VALID_FOR=(ALL_LOGFILES,ALL_ROLES) DB_UNIQUE_NAME=PORTALDB' LOG_ARCHIVE_DEST_2= 'SERVICE=PORTALDB1 LGWR ASYNC VALID_FOR=(ONLINE_LOGFILES,PRIMARY_ROLE) DB_UNIQUE_NAME=PORTALDB1' LOG_ARCHIVE_DEST_STATE_1=ENABLE LOG_ARCHIVE_DEST_STATE_2=ENABLE LOG_ARCHIVE_FORMAT=%t_%s_%r.arc FAL_SERVER=PORTALDB1 FAL_CLIENT=PORTALDB STANDBY_FILE_MANAGEMENT=AUTO |
删除D:\app\Administrator\product\11.2.0\dbhome_1\database\SPFILEportaldb.ora,让数据库用INITportaldb.ora参数启动,再通过pfile生成spfile.
Sql>create spfile from pfile; |
3. 把主机上的database移植到standby中:
把主机上的portaldb的库关闭。
把主机上的portaldb的相关datafile拷贝到standby机器上。文件路径要一致。
3.1. 数据文件: D:\app\Administrator\oradata
3.2. 参数文件:D:\app\Administrator\product\11.2.0\dbhome_1\database\INITportaldb.ora
3.3. 跟踪文件:D:\app\Administrator\admin
3.4. 密码文件:D:\app\Administrator\product\11.2.0\dbhome_1\database\PWDportaldb.ora
3.5. 闪回文件:D:\app\Administrator\flash_recovery_area
4.在主库上建立备库控制文件(控制文件通常需要有多份,手工将文件复制几份)
SQL> alter database create standby controlfile as 'd:/app/CONTOL.CTL’; |
拷贝如上文件到备机相应目录中。(d:/app/CONTOL.CTL)
5. 修改备机的init文件,以下是备机的init文件。
注意以下红色部分为新添加的内容。
portaldb.__db_cache_size=5368709120 portaldb.__java_pool_size=67108864 portaldb.__large_pool_size=33554432 portaldb.__oracle_base='D:\app\Administrator'#ORACLE_BASE set from environment portaldb.__pga_aggregate_target=5502926848 portaldb.__sga_target=8254390272 portaldb.__shared_io_pool_size=0 portaldb.__shared_pool_size=2617245696 portaldb.__streams_pool_size=67108864 *.audit_file_dest='D:\app\Administrator\admin\PORTALDB\adump' *.audit_trail='db' *.compatible='11.2.0.0.0' *.control_files='D:\app\control.ctl','E:\oraclebackup\PORTALDB\control.ctl' *.db_block_size=8192 *.db_domain='' *.db_name='PORTALDB' *.db_recovery_file_dest='E:\oraclebackup' *.db_recovery_file_dest_size=4102029312 *.diagnostic_dest='D:\app\Administrator' *.dispatchers='(PROTOCOL=TCP) (SERVICE=PORTALDBXDB)' *.job_queue_processes=1000 *.memory_target=13739491328 *.open_cursors=300 *.processes=150 *.remote_login_passwordfile='EXCLUSIVE' *.undo_tablespace='UNDOTBS1' *.log_file_name_convert = '<D:\app\Administrator\oradata\PORTALDB\>','<D:\app\Administrator\oradata\PORTALDB\>' DB_UNIQUE_NAME=PORTALDB1 LOG_ARCHIVE_CONFIG='DG_CONFIG=(PORTALDB,PORTALDB1)' LOG_ARCHIVE_FORMAT=log%t_%s_%r.arc LOG_ARCHIVE_DEST_1= 'LOCATION=D:\app\Administrator\flash_recovery_area VALID_FOR=(ALL_LOGFILES,ALL_ROLES) DB_UNIQUE_NAME=PORTALDB1' LOG_ARCHIVE_DEST_2= 'SERVICE=PORTALDB LGWR ASYNC VALID_FOR=(ONLINE_LOGFILES,PRIMARY_ROLE) DB_UNIQUE_NAME=PORTALDB' LOG_ARCHIVE_DEST_STATE_1=ENABLE LOG_ARCHIVE_DEST_STATE_2=ENABLE FAL_SERVER=PORTALDB FAL_CLIENT=PORTALDB1 STANDBY_FILE_MANAGEMENT=AUTO |
删除D:\app\Administrator\product\11.2.0\dbhome_1\database\SPFILEportaldb.ora,让数据库用INITportaldb.ora参数启动。
6.修改主机监听文件和TNS文件,以下是两个文件所在的目录:
C:\app\Administrator\product\11.2.0\dbhome_1\NETWORK\ADMIN
首先修改监听文件:listener 。修改好的监听文件如下:
# listener.ora Network Configuration File: D:\app\Administrator\product\11.2.0\dbhome_1\network\admin\listener.ora # Generated by Oracle configuration tools. SID_LIST_LISTENER = (SID_LIST = (SID_DESC = (SID_NAME = CLRExtProc) (ORACLE_HOME = D:\app\Administrator\product\11.2.0\dbhome_1) (PROGRAM = extproc) (ENVS = "EXTPROC_DLLS=ONLY:D:\app\Administrator\product\11.2.0\dbhome_1\bin\oraclr11.dll") ) ) LISTENER = (DESCRIPTION_LIST = (DESCRIPTION = (ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1521)) (ADDRESS = (PROTOCOL = TCP)(HOST = WIN-DMI15M4V4SO)(PORT = 1521)) ) ) ADR_BASE_LISTENER = D:\app\Administrator |
再修改tnsnames文件,修改好的文件内容如下:
# tnsnames.ora Network Configuration File: D:\app\Administrator\product\11.2.0\dbhome_1\network\admin\tnsnames.ora # Generated by Oracle configuration tools. PORTALDB = (DESCRIPTION = (ADDRESS = (PROTOCOL = TCP)(HOST = 10.128.60.60)(PORT = 1521)) (CONNECT_DATA = (SERVER = DEDICATED) (SERVICE_NAME = PORTALDB) ) ) PORTALDB1 = (DESCRIPTION = (ADDRESS = (PROTOCOL = TCP)(HOST = 10.128.60.61)(PORT = 1521)) (CONNECT_DATA = (SERVER = DEDICATED) (SERVICE_NAME = PORTALDB1) ) ) ORACLR_CONNECTION_DATA = (DESCRIPTION = (ADDRESS_LIST = (ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1521)) ) (CONNECT_DATA = (SID = CLRExtProc) (PRESENTATION = RO) ) ) |
7.修改备机监听文件和TNS文件,以下是两个文件所在的目录:
C:\app\Administrator\product\11.2.0\dbhome_1\NETWORK\ADMIN
首先修改监听文件:listener 。修改好的监听文件如下:
# listener.ora Network Configuration File: D:\app\Administrator\product\11.2.0\dbhome_1\network\admin\listener.ora # Generated by Oracle configuration tools. SID_LIST_LISTENER = (SID_LIST = (SID_DESC = (SID_NAME = CLRExtProc) (ORACLE_HOME = D:\app\Administrator\product\11.2.0\dbhome_1) (PROGRAM = extproc) (ENVS = "EXTPROC_DLLS=ONLY:D:\app\Administrator\product\11.2.0\dbhome_1\bin\oraclr11.dll") ) ) LISTENER = (DESCRIPTION_LIST = (DESCRIPTION = (ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1521)) (ADDRESS = (PROTOCOL = TCP)(HOST = WIN-UBS1NS352B9)(PORT = 1521)) ) ) ADR_BASE_LISTENER = D:\app\Administrator |
再修改tnsnames文件,修改好的文件内容如下:
# tnsnames.ora Network Configuration File: D:\app\Administrator\product\11.2.0\dbhome_1\network\admin\tnsnames.ora # Generated by Oracle configuration tools. PORTALDB1 = (DESCRIPTION = (ADDRESS = (PROTOCOL = TCP)(HOST = 10.128.60.61)(PORT = 1521)) (CONNECT_DATA = (SERVER = DEDICATED) (SERVICE_NAME = PORTALDB1) ) ) PORTALDB = (DESCRIPTION = (ADDRESS = (PROTOCOL = TCP)(HOST = 10.128.60.60)(PORT = 1521)) (CONNECT_DATA = (SERVER = DEDICATED) (SERVICE_NAME = PORTALDB) ) ) ORACLR_CONNECTION_DATA = (DESCRIPTION = (ADDRESS_LIST = (ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1521)) ) (CONNECT_DATA = (SID = CLRExtProc) (PRESENTATION = RO) ) ) |
注:以上主机和备机的tnsnames是一致的。
8. 测试主机primary和备机standby是否能互访:
分别在主机和备机上执行如下PING命令查看显示是否正常
C:\> tnsping PORTALDB C:\> tnsping PORTALDB1 |
若不能PING通,重启SERVICES.MSC里的ORACLE监听服务再次测试。
9. 启动备机:
C:\> sqlplus "/ as sysdba" SQL> alter database recover managed standby database disconnect from session; |
10.优化配置Standby RedoLog(主备机)
添加主机的Standby Redo Log 文件:
ALTER DATABASE ADD STANDBY LOGFILE GROUP 4 ('D:\app\Administrator\oradata\PORTALDB\std_redo04.log') size 100M; ALTER DATABASE ADD STANDBY LOGFILE GROUP 5 ('D:\app\Administrator\oradata\PORTALDB\std_redo05.log') size 100M; ALTER DATABASE ADD STANDBY LOGFILE GROUP 6 ('D:\app\Administrator\oradata\PORTALDB\std_redo06.log') size 100M; ALTER DATABASE ADD STANDBY LOGFILE GROUP 7 ('D:\app\Administrator\oradata\PORTALDB\std_redo07.log') size 100M; |
查看添加后的情况:
SQL> select group#,type, member from v$logfile; |
修改Online redo:
SQL> select group#,thread#,archived,status, bytes/1024/1024 from v$log; GROUP# THREAD# ARC STATUS BYTES/1024/1024 ---------- ---------- --- ---------------- --------------- 1 1 YES INACTIVE 50 2 1 NO CURRENT 50 3 1 YES INACTIVE 50 |
先处理inactive,它表示已经完成规定的,可以删除。(因至少要两个redo组,所以删除号时需一个一个删除。如果同时删除两个,会报错。)
SQL> alter database drop logfile group 1; Database altered. |
找到指定物理目录删除对应的REDO01文件。再创建新的REDO01
alter database add logfile group 1 ('D:\app\Administrator\oradata\PORTALDB\redo01.log') size 100M; |
再次查看REDO使用状况:
SQL> select group#,thread#,archived,status, bytes/1024/1024 from v$log; GROUP# THREAD# ARC STATUS BYTES/1024/1024 ---------- ---------- --- ---------------- --------------- 1 1 YES UNUSED 100 2 1 NO CURRENT 50 3 1 YES INACTIVE 50 |
此时GROUP1已经创建成功。
按此方法删除GROUP3并创建GROUP3.
切换一下logfile,再删除group2
SQL> alter system switch logfile; System altered. SQL> select group#,thread#,archived,status, bytes/1024/1024 from v$log; GROUP# THREAD# ARC STATUS BYTES/1024/1024 ---------- ---------- --- ---------------- --------------- 1 1 NO CURRENT 100 2 1 YES ACTIVE 50 -- group 正在归档,需要等会再看一下 3 1 YES UNUSED 100 |
当查看归档完成时:
SQL> select group#,thread#,archived,status, bytes/1024/1024 from v$log; GROUP# THREAD# ARC STATUS BYTES/1024/1024 ---------- ---------- --- ---------------- --------------- 1 1 NO CURRENT 100 2 1 YES INACTIVE 50 3 1 YES UNUSED 100 |
再按上边的方法删除REDO02再建立REDO02的GROUP2组。
建立完查看情况SQL> select group#,type, member fromv$logfile; 若7个REDO文件都在并且大小也是100M,表示主机的所有REDO已经建立完成。
接下来建立备机的REDO文件:
先看一下备机在使用的REDO文件
SQL> select group#,thread#,archived,status, bytes/1024/1024 from v$log; GROUP# THREAD# ARC STATUS BYTES/1024/1024 ---------- ---------- --- ---------------- --------------- 1 1 YES CLEARING_CURRENT 50 3 1 YES CLEARING 50 2 1 YES CLEARING 50 |
停掉redo 的apply:
SQL> alter database recover managed standby database cancel; |
不然删除GROUP会报如下错误:
SQL> alter database drop logfile group 2; alter database drop logfile group 2 * ERROR at line 1: ORA-01156: recovery in progress may need access to files |
添加备机的Standby Redo Log 文件:
ALTER DATABASE ADD STANDBY LOGFILE GROUP 4 ('D:\app\Administrator\oradata\PORTALDB\std_redo04.log') size 100M; ALTER DATABASE ADD STANDBY LOGFILE GROUP 5 ('D:\app\Administrator\oradata\PORTALDB\std_redo05.log') size 100M; ALTER DATABASE ADD STANDBY LOGFILE GROUP 6 ('D:\app\Administrator\oradata\PORTALDB\std_redo06.log') size 100M; ALTER DATABASE ADD STANDBY LOGFILE GROUP 7 ('D:\app\Administrator\oradata\PORTALDB\std_redo07.log') size 100M; |
处理online redo:
先将standby_file_management设为手动:
SQL> alter system set standby_file_management=manual; System altered. |
不然会报如下错误:
SQL> alter database drop logfile group 2; alter database drop logfile group 2 * ERROR at line 1: ORA-01275: Operation DROP LOGFILE is not allowed if standby file management is automatic. |
关闭数据库,编辑PFILE配置。添加如下路径转换信息,并保存重新启动数据库。
SQL> shutdown immediate ORA-01109: database not open Database dismounted. ORACLE instance shut down. |
编辑PFILE(注:该步骤的目的是因为ORACLE11若不添加转换路径是不允许执行删除备机ONLINE REDO)
*.log_file_name_convert ='d:\app\administrator \oradata\ PORTALDB \',' d:\app\administrator \oradata\ PORTALDB \' |
用PFILE启动备库:
SQL> startup nomount SQL> alter database mount standby database; |
修改备库的STD管理为手动:
SQL> ALTER SYSTEM SET STANDBY_FILE_MANAGEMENT='MANUAL'; |
再按照主库的删除和创建GROUP REDO组的方法分别删除和建立REDO组,当所有REDO组都建立好后。将STANDBY的文件管理再次改为AUTO。
SQL> ALTER SYSTEM SET STANDBY_FILE_MANAGEMENT='AUTO'; |
开启备库管理模式
SQL> alter database recover managed standby database disconnect from session; Database altered. |
11. 检查DATAGUARD文档同步
在主机上变更使用的REDO文件
SQL> alter system switch logfile; System altered. |
在主机上查看SEQUENCE
SQL> select max(sequence#) from v$archived_log; MAX(SEQUENCE#) -------------- 15 |
在备机上查看SEQUENCE:
SQL> select sequence#,applied from v$archived_log; SEQUENCE# APP ---------- --- 2 YES 3 YES 5 YES 4 YES 7 YES 6 YES 8 YES 9 YES 13 YES 10 YES 11 YES SEQUENCE# APP ---------- --- 12 YES 14 YES 15 YES 14 rows selected. |
主机上检查归档目录可用情况:
SQL> select dest_name,status,error from v$archive_dest; |
查看实时归档目录个数:(主备机查看实时归档LOG是否相同)
archive log list; |
经查归档已经完全同步并生效,至此DATAGUARD设置完成。