EBS测试环境DataGuard配置
EBS测试环境DataGuard配置
小强斋太 发表于1年前
EBS测试环境DataGuard配置
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1、环境信息

primary数据库(必须运行在归档模式)

ip

127.71.28.71

sid

test

db_unique_name

test

log_mode

archivelog

force_logging

no

standby数据库

ip

127.71.48.38

sid

ebstest_stby

db_unique_name

db_standby

设置提示,以区分操作的位置

primary数据库

set SQLPROMPT Primary>

standby数据库

set SQLPROMPT StandBy>

2、Standby端新建数据库用户

当前的环境中已经有dba用户组,因此只新建用户ebstest_standby即可

[wangshengzhuang@ebstest ~]$ sudo useradd -g dba ebstest_standby

3、拷贝ORACLE_HOME目录至备库服务器

在StandBy上创建如下oracle软件父目录

[ebstest_standby@ebstest ebstest_standby]$ mkdir -p /ebstest/ebstest_standby

压缩Primary的数据库目录(排除trace和audit目录,大约需要7分钟)

tar -zcvf  ebstest_oracle_home_20151225.tar.gz  /TEST/db/tech_st  --exclude  /TEST/db/tech_st/11.1.0/admin  --exclude /TEST/db/tech_st/11.1.0/rdbms/audit 

传送上面生成的压缩文件至Standby服务器

[oratest@erptest db]$ scp ebstest_oracle_home_20151225.tar.gz  ebstest_standby@127.71.48.38:/ebstest/ebstest_standby

在Standby服务器解压

[ebstest_standby@ebstest ebstest_standby]$ tar -zxvf ebstest_oracle_home_20151225.tar.gz

4、standby端创建数据库相关目录

查询primary端的目录

SQL> select name ,value from v$parameter  where name in ('audit_file_dest','background_dump_dest','control_files','core_dump_dest','user_dump_dest') ORDER BY name ASC; NAME VALUE ------------------------------ -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- audit_file_dest /TEST/db/tech_st/11.1.0/rdbms/audit background_dump_dest /TEST/db/tech_st/11.1.0/admin/TEST_erptest/diag/rdbms/test/TEST/trace control_files /TEST/db/apps_st/data/cntrl01.dbf, /TEST/db/apps_st/data/cntrl02.dbf, /TEST/db/apps_st/data/cntrl03.dbf core_dump_dest /TEST/db/tech_st/11.1.0/admin/TEST_erptest/diag/rdbms/test/TEST/cdump user_dump_dest /TEST/db/tech_st/11.1.0/admin/TEST_erptest/diag/rdbms/test/TEST/trace

对应的standby端对应的目录

audit_file_dest /ebstest/ebstest_standby/TEST/db/tech_st/11.1.0/rdbms/audit
background_dump_dest /ebstest/ebstest_standby/TEST/db/tech_st/11.1.0/admin/TEST_erptest/diag/rdbms/test/TEST/trace
core_dump_dest /ebstest/ebstest_standby/TEST/db/tech_st/11.1.0/admin/TEST_erptest/diag/rdbms/test/TEST/cdump
user_dump_dest /ebstest/ebstest_standby/TEST/db/tech_st/11.1.0/admin/TEST_erptest/diag/rdbms/test/TEST/trace
control_files /ebstest/ebstest_standby/TEST/db/apps_st/data/cntrl01.dbf, /ebstest/ebstest_standby/TEST/db/apps_st/data/cntrl02.dbf,
/ebstest/ebstest_standby /TEST/db/apps_st/data/cntrl03.dbf

创建上述目录

[ebstest_standby@ebstest ebstest_standby]$ mkdir -p /ebstest/ebstest_standby/TEST/db/tech_st/11.1.0/rdbms/audit [ebstest_standby@ebstest ebstest_standby]$ mkdir -p /ebstest/ebstest_standby/TEST/db/tech_st/11.1.0/admin/TEST_erptest/diag/rdbms/test/TEST/trace [ebstest_standby@ebstest ebstest_standby]$ mkdir -p /ebstest/ebstest_standby/TEST/db/tech_st/11.1.0/admin/TEST_erptest/diag/rdbms/test/TEST/cdump [ebstest_standby@ebstest db]$ mkdir -p /ebstest/ebstest_standby/TEST/db/apps_st/data/

5、修改standby环境变量

.bash_profile中添加:

. /ebstest/ebstest_standby/TEST/db/tech_st/11.1.0/TEST_erptest.env

修改/ebstest/ebstest_standby/TEST/db/tech_st/11.1.0/TEST_erptest.env

  • 将所有的/TEST/db/tech_st/11.1.0/ 替换为/ebstest/ebstest_standby/TEST/db/tech_st/11.1.0/  一共21处
  • 设置ORACLE_SID为EBSTEST_STBY

确认结果

[ebstest_standby@ebstest ~]$ source .bash_profile [ebstest_standby@ebstest ~]$ echo $ORACLE_SID EBSTEST_STBY

6、密码文件

直接从Primary数据库复制密钥文件过来

[oratest@erptest dbs]$ pwd /TEST/db/tech_st/11.1.0/dbs [oratest@erptest dbs]$ scp orapwTEST  ebstest_standby@127.71.48.38:/ebstest/ebstest_standby/TEST/db/tech_st/11.1.0/dbs

改名

[ebstest_standby@ebstest dbs]$ mv orapwTEST  orapwEBSTEST_STBY

7、修改Primary端spfile文件参数

查询Primary库的db_unique_name

SQL> show parameter db_unique NAME TYPE VALUE ------------------------------------ ----------- ------------------------------ db_unique_name string      TEST

修改Primay端spfile参数值(因为不要求switchover 很多参数值未设置)

-------为了不重启,沿用上面的db_unique_name 
----alter system set DB_UNIQUE_NAME=TEST scope=spfile;
alter system set LOG_ARCHIVE_CONFIG='DG_CONFIG=(TEST,db_standby)'
alter system set LOG_ARCHIVE_DEST_2='SERVICE=tns_standby LGWR ASYNC NOAFFIRM VALID_FOR=(ONLINE_LOGFILES,PRIMARY_ROLE) DB_UNIQUE_NAME=db_standby'
alter system set LOG_ARCHIVE_DEST_STATE_2=DEFER 

8、生成StandBy端spfile文件

首先在primary端生成pfile文件

SQL>  create pfile ='/TEST/initEBSTEST_STBY.ora' from spfile; File created.

拷贝到备库

[oratest@erptest TEST]$ scp initEBSTEST_STBY.ora  ebstest_standby@127.71.48.38:/ebstest/ebstest_standby/TEST/db/tech_st/11.1.0/dbs ebstest_standby@127.71.48.38's password:
initEBSTEST_STANDBY.ora                                               100% 2770     2.7KB/s   00:00

修改如下

  1. 内存参数中的TEST 改为 EBSTEST_STBY
  2. 修改pfile中各种文件的路径
  3. 修改下面dataguard涉及的参数:
*.db_unique_name='db_standby'
*.LOG_ARCHIVE_CONFIG='DG_CONFIG=(TEST,db_standby)'
*.log_archive_dest_2='SERVICE=tns_primary LGWR ASYNC NOAFFIRM VALID_FOR=(ONLINE_LOGFILES,PRIMARY_ROLE) DB_UNIQUE_NAME=TEST'
*.log_archive_dest_state_2='ENABLE'

*.DB_FILE_NAME_CONVERT= '/TEST/db/apps_st/data/','/ebstest/ebstest_standby/TEST/db/apps_st/data/' 
*.LOG_FILE_NAME_CONVERT='/TEST/db/apps_st/data/','/ebstest/ebstest_standby/TEST/db/apps_st/data/'


*.FAL_SERVER=tns_primary *.FAL_CLIENT=tns_standby *.STANDBY_FILE_MANAGEMENT=AUTO

通过复制的pfile创建Standby数据库的spfile

StandBy> create spfile from pfile; File created.

9、Standby端配置监听

查看listener.ora位置(.env中配置的)

[ebstest_standby@ebstest ebstest_standby]$ echo $TNS_ADMIN /ebstest/ebstest_standby/TEST/db/tech_st/11.1.0/network/admin/TEST_erptest

standby端配置静态监听(服务名GLOBAL_DBNAME = StandBy,后面配置tns会用到)

TESTSTBY = (DESCRIPTION_LIST = (DESCRIPTION = (ADDRESS = (PROTOCOL = TCP)(HOST = 127.71.48.38)(PORT = 1529)) ) ) SID_LIST_LISTENER = (SID_LIST = (SID_DESC = (GLOBAL_DBNAME = StandBy) (ORACLE_HOME =/ebstest/ebstest_standby/TEST/db/tech_st/11.1.0) (SID_NAME = EBSTEST_STBY) ) )

启动监听

[ebstest_standby@ebstest TEST_erptest]$ lsnrctl start

查看监听该状态

[ebstest_standby@ebstest ebstest_standby]$ lsnrctl status

10、配置网络服务名tns,并测试互通性

primary端和standby端配置tns

tns_primary = (DESCRIPTION = (ADDRESS = (PROTOCOL = TCP)(HOST = 127.71.28.71)(PORT = 1529)) (CONNECT_DATA = (SERVER = DEDICATED) (SERVICE_NAME = TEST) ) ) tns_standby = (DESCRIPTION = (ADDRESS = (PROTOCOL = TCP)(HOST = 127.71.48.38)(PORT = 1521)) (CONNECT_DATA = (SERVER = DEDICATED) (SERVICE_NAME =StandBy ) ) )

测试

tnsping tns_primary tnsping tns_standby

11、duplicate standby

备库Standby启动到nomount

SQL> startup nomount ORACLE instance started. Total System Global Area 3290345472 bytes Fixed Size 2217832 bytes Variable Size 1795164312 bytes Database Buffers 1476395008 bytes Redo Buffers 16568320 bytes

rman连接到两个数据库

[oratest@erptest ~]$ rman target sys/yourpassword@tns_primary auxiliary sys/yourpassword@tns_standby

开始复制(确保备库有足够的空间,否则会报错)

RMAN> DUPLICATE TARGET DATABASE FOR STANDBY FROM ACTIVE DATABASE DORECOVER NOFILENAMECHECK;

复制完以后大概1T左右,大约需要3个多小时

[ebstest_standby@ebstest ebstest_standby]$ du -hs TEST/ 988G TEST/

12、添加Standby REDO log

查看主库的redo log的大小

SQL> select * from v$logfile; GROUP# STATUS TYPE MEMBER IS_ ------ ---------- ---------- -------------------------------------------------- ---
     3            ONLINE     /TEST/db/apps_st/data/log03b.dbf NO 3            ONLINE     /TEST/db/apps_st/data/log03a.dbf NO 2            ONLINE     /TEST/db/apps_st/data/log02b.dbf NO 2            ONLINE     /TEST/db/apps_st/data/log02a.dbf NO 1            ONLINE     /TEST/db/apps_st/data/log01a.dbf NO 1            ONLINE     /TEST/db/apps_st/data/log01b.dbf NO 6 rows selected. SQL> select * from v$log; GROUP# THREAD# SEQUENCE# BYTES MEMBERS ARC STATUS FIRST_CHANGE# FIRST_TIME ------ ---------- ---------- ---------- ---------- --- ---------- ------------- ------------------
     1          1       1288 1048576000          2 NO  CURRENT       5.9797E+12 04-JAN-16
     2          1       1286 1048576000          2 YES INACTIVE      5.9797E+12 04-JAN-16
     3          1       1287 2147483648          2 YES INACTIVE      5.9797E+12 04-JAN-16

当前有三组、每组1个member、大小为1000M, 我们增加四组,每组2个member,大小为1000M

ALTER DATABASE ADD STANDBY LOGFILE GROUP
4
('/ebstest/ebstest_standby/TEST/db/apps_st/data/stbyredolog4a.dbf','/ebstest/ebstest_standby/TEST/db/apps_st/data/stbyredolog4b.dbf') SIZE 1000 M; 
 
ALTER DATABASE ADD STANDBY   LOGFILE GROUP 5('/ebstest/ebstest_standby/TEST/db/apps_st/data/stbyredolog5a.dbf','/ebstest/ebstest_standby/TEST/db/apps_st/data/stbyredolog5b.dbf') SIZE  1000 M; 
ALTER DATABASE ADD STANDBY LOGFILE GROUP 6('/ebstest/ebstest_standby/TEST/db/apps_st/data/stbyredolog6a.dbf','/ebstest/ebstest_standby/TEST/db/apps_st/data/stbyredolog6b.dbf') SIZE  1000 M; 
ALTER DATABASE ADD STANDBY LOGFILE GROUP 7('/ebstest/ebstest_standby/TEST/db/apps_st/data/stbyredolog7a.dbf','/ebstest/ebstest_standby/TEST/db/apps_st/data/stbyredolog7b.dbf') SIZE  1000 M;

13、启用primary库的日志传送

Primary>show parameter LOG_ARCHIVE_DEST_STATE_2 NAME TYPE VALUE ------------------------------------ ---------------------- ------------------------------ log_archive_dest_state_2 string DEFER log_archive_dest_state_20 string enable log_archive_dest_state_21 string enable log_archive_dest_state_22 string enable log_archive_dest_state_23 string enable log_archive_dest_state_24 string enable log_archive_dest_state_25 string enable log_archive_dest_state_26 string enable log_archive_dest_state_27 string enable log_archive_dest_state_28 string enable log_archive_dest_state_29 string enable Primary>alter system set LOG_ARCHIVE_DEST_STATE_2=ENABLE; System altered.

14、验证&测试

主库插入一条数据

SQL> INSERT INTO "SCOTT"."DEPT" ("DEPTNO", "DNAME", "LOC") VALUES ('13', 'OPERATIONS', 'OPERATIONS'); 1 row created. SQL> commit; Commit complete.

备库启动实时应用

SQL> alter database recover managed standby database using current logfile disconnect from session; Database altered.

查询备库

SQL> select * from scott.dept; DEPTNO DNAME LOC ---------- -------------- -------------
         10 ACCOUNTING NEW YORK 20 RESEARCH DALLAS 30 SALES CHICAGO 40 OPERATIONS BOSTON 13 OPERATIONS OPERATIONS 15 OPERATIONS     OPERATIONS
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