search
HomeDatabaseMysql Tutorial使用RAC和Data Guard构建MAA架构

在前面的单实例数据库迁移至rac环境配置过程中(见 http://www.linuxidc.com/Linux/2012-01/52055.htm ),介绍了使用standby技术

在前面的单实例数据库迁移至rac环境配置过程中(见  ),,介绍了使用standby技术构建单实例主库对应rac物理备库的data guard模型,本节中将介绍rac主库对应单实例物理备库的data guard模型构建;在MAA架构中,ASM提供了存储方面的网格,RAC提供了数据库层面上的网格计算,data guard则着重强调在数据的备份和容灾方面,更多MAA方面的知识,参考下面的链接!

一:主备库的环境介绍
主库:
数据库版本:10.2.0.5
OS版本:CentOS4.8 64位
数据库名:rac(两个实例)
实例名:rac1,rac2
IP地址:192.168.1.41/24,192.168.1.42/24
db_unique_name: rac
服务名:rac.yang.com
监听器端口:1521
存储类型:OMF+ASM磁盘组,+DATA,+FRA

备库:
数据库版本:10.2.0.5
OS版本:rhel5.4 64位
数据库名:rac (单实例)
实例名:orcl
IP地址:192.168.1.49/24
db_unique_name: orcl
服务名:orcl.yang.com
监听器端口:1521
存储类型:文件系统+OMF

在开始前确保主库rac环境正常,备库只需要安装数据库软件即可,不需要建库

[Oracle@rac1 ~]$ crs_stat -t -v
Name          Type          R/RA  F/FT  Target    State    Host       
----------------------------------------------------------------------
ora.rac.db    application    0/0    0/1    ONLINE    ONLINE    rac1       
ora....c1.inst application    0/5    0/0    ONLINE    ONLINE    rac1       
ora....c2.inst application    0/5    0/0    ONLINE    ONLINE    rac2       
ora....SM1.asm application    0/5    0/0    ONLINE    ONLINE    rac1       
ora....C1.lsnr application    0/5    0/0    ONLINE    ONLINE    rac1       
ora.rac1.gsd  application    0/5    0/0    ONLINE    ONLINE    rac1       
ora.rac1.ons  application    0/3    0/0    ONLINE    ONLINE    rac1       
ora.rac1.vip  application    0/0    0/0    ONLINE    ONLINE    rac1       
ora....SM2.asm application    0/5    0/0    ONLINE    ONLINE    rac2       
ora....C2.lsnr application    0/5    0/0    ONLINE    ONLINE    rac2       
ora.rac2.gsd  application    0/5    0/0    ONLINE    ONLINE    rac2       
ora.rac2.ons  application    0/3    0/0    ONLINE    ONLINE    rac2       
ora.rac2.vip  application    0/0    0/0    ONLINE    ONLINE    rac2 

二:配置监听器和tnsnames.ora文件如下,rac节点2上需要同样进行配置

[oracle@rac1 ~]$ cat $ORACLE_HOME/network/admin/listener.ora
LISTENER_RAC1 =
  (DESCRIPTION_LIST =
    (DESCRIPTION =
      (ADDRESS = (PROTOCOL = TCP)(HOST = rac1-vip.yang.com)(PORT = 1521)(IP = FIRST))
      (ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.1.41)(PORT = 1521)(IP = FIRST))
    )
  )

SID_LIST_LISTENER_RAC1 =
  (SID_LIST =
    (SID_DESC =
      (ORACLE_HOME = /u01/app/oracle/product/10.2.0/db_1)
      (GLOBAL_DBNAME=rac_DGMGRL.yang.com)
      (SID_NAME = rac1)
    )
  )

Connected to:
Oracle Database 10g Enterprise Edition Release 10.2.0.5.0 - 64bit Production
With the Partitioning, Real Application Clusters, OLAP, Data Mining
and Real Application Testing options
SQL>

[oracle@rac1 ~]$ cat $ORACLE_HOME/admin/tnsnames.ora
LISTENERS_RAC =
  (ADDRESS_LIST =
    (ADDRESS = (PROTOCOL = TCP)(HOST = rac1-vip.yang.com)(PORT = 1521))
    (ADDRESS = (PROTOCOL = TCP)(HOST = rac2-vip.yang.com)(PORT = 1521))
  )

LISTENER_RAC1 =
  (ADDRESS_LIST =
    (ADDRESS = (PROTOCOL = TCP)(HOST = rac1-vip.yang.com)(PORT = 1521))
  )

LISTENER_RAC2 =
  (ADDRESS_LIST =
    (ADDRESS = (PROTOCOL = TCP)(HOST = rac1-vip.yang.com)(PORT = 1521))
  )

RAC =
  (DESCRIPTION =
    (ADDRESS = (PROTOCOL = TCP)(HOST = rac1-vip.yang.com)(PORT = 1521))
    (ADDRESS = (PROTOCOL = TCP)(HOST = rac2-vip.yang.com)(PORT = 1521))
    (LOAD_BALANCE = yes)
    (CONNECT_DATA =
      (SERVER = DEDICATED)
      (SERVICE_NAME = rac.yang.com)
    )
  )

Statement
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn
What Are the Limitations of Using Views in MySQL?What Are the Limitations of Using Views in MySQL?May 14, 2025 am 12:10 AM

MySQLviewshavelimitations:1)Theydon'tsupportallSQLoperations,restrictingdatamanipulationthroughviewswithjoinsorsubqueries.2)Theycanimpactperformance,especiallywithcomplexqueriesorlargedatasets.3)Viewsdon'tstoredata,potentiallyleadingtooutdatedinforma

Securing Your MySQL Database: Adding Users and Granting PrivilegesSecuring Your MySQL Database: Adding Users and Granting PrivilegesMay 14, 2025 am 12:09 AM

ProperusermanagementinMySQLiscrucialforenhancingsecurityandensuringefficientdatabaseoperation.1)UseCREATEUSERtoaddusers,specifyingconnectionsourcewith@'localhost'or@'%'.2)GrantspecificprivilegeswithGRANT,usingleastprivilegeprincipletominimizerisks.3)

What Factors Influence the Number of Triggers I Can Use in MySQL?What Factors Influence the Number of Triggers I Can Use in MySQL?May 14, 2025 am 12:08 AM

MySQLdoesn'timposeahardlimitontriggers,butpracticalfactorsdeterminetheireffectiveuse:1)Serverconfigurationimpactstriggermanagement;2)Complextriggersincreasesystemload;3)Largertablesslowtriggerperformance;4)Highconcurrencycancausetriggercontention;5)M

MySQL: Is it safe to store BLOB?MySQL: Is it safe to store BLOB?May 14, 2025 am 12:07 AM

Yes,it'ssafetostoreBLOBdatainMySQL,butconsiderthesefactors:1)StorageSpace:BLOBscanconsumesignificantspace,potentiallyincreasingcostsandslowingperformance.2)Performance:LargerrowsizesduetoBLOBsmayslowdownqueries.3)BackupandRecovery:Theseprocessescanbe

MySQL: Adding a user through a PHP web interfaceMySQL: Adding a user through a PHP web interfaceMay 14, 2025 am 12:04 AM

Adding MySQL users through the PHP web interface can use MySQLi extensions. The steps are as follows: 1. Connect to the MySQL database and use the MySQLi extension. 2. Create a user, use the CREATEUSER statement, and use the PASSWORD() function to encrypt the password. 3. Prevent SQL injection and use the mysqli_real_escape_string() function to process user input. 4. Assign permissions to new users and use the GRANT statement.

MySQL: BLOB and other no-sql storage, what are the differences?MySQL: BLOB and other no-sql storage, what are the differences?May 13, 2025 am 12:14 AM

MySQL'sBLOBissuitableforstoringbinarydatawithinarelationaldatabase,whileNoSQLoptionslikeMongoDB,Redis,andCassandraofferflexible,scalablesolutionsforunstructureddata.BLOBissimplerbutcanslowdownperformancewithlargedata;NoSQLprovidesbetterscalabilityand

MySQL Add User: Syntax, Options, and Security Best PracticesMySQL Add User: Syntax, Options, and Security Best PracticesMay 13, 2025 am 12:12 AM

ToaddauserinMySQL,use:CREATEUSER'username'@'host'IDENTIFIEDBY'password';Here'showtodoitsecurely:1)Choosethehostcarefullytocontrolaccess.2)SetresourcelimitswithoptionslikeMAX_QUERIES_PER_HOUR.3)Usestrong,uniquepasswords.4)EnforceSSL/TLSconnectionswith

MySQL: How to avoid String Data Types common mistakes?MySQL: How to avoid String Data Types common mistakes?May 13, 2025 am 12:09 AM

ToavoidcommonmistakeswithstringdatatypesinMySQL,understandstringtypenuances,choosetherighttype,andmanageencodingandcollationsettingseffectively.1)UseCHARforfixed-lengthstrings,VARCHARforvariable-length,andTEXT/BLOBforlargerdata.2)Setcorrectcharacters

See all articles

Hot AI Tools

Undresser.AI Undress

Undresser.AI Undress

AI-powered app for creating realistic nude photos

AI Clothes Remover

AI Clothes Remover

Online AI tool for removing clothes from photos.

Undress AI Tool

Undress AI Tool

Undress images for free

Clothoff.io

Clothoff.io

AI clothes remover

Video Face Swap

Video Face Swap

Swap faces in any video effortlessly with our completely free AI face swap tool!

Hot Article

Hot Tools

SublimeText3 Linux new version

SublimeText3 Linux new version

SublimeText3 Linux latest version

SecLists

SecLists

SecLists is the ultimate security tester's companion. It is a collection of various types of lists that are frequently used during security assessments, all in one place. SecLists helps make security testing more efficient and productive by conveniently providing all the lists a security tester might need. List types include usernames, passwords, URLs, fuzzing payloads, sensitive data patterns, web shells, and more. The tester can simply pull this repository onto a new test machine and he will have access to every type of list he needs.

ZendStudio 13.5.1 Mac

ZendStudio 13.5.1 Mac

Powerful PHP integrated development environment

DVWA

DVWA

Damn Vulnerable Web App (DVWA) is a PHP/MySQL web application that is very vulnerable. Its main goals are to be an aid for security professionals to test their skills and tools in a legal environment, to help web developers better understand the process of securing web applications, and to help teachers/students teach/learn in a classroom environment Web application security. The goal of DVWA is to practice some of the most common web vulnerabilities through a simple and straightforward interface, with varying degrees of difficulty. Please note that this software

Notepad++7.3.1

Notepad++7.3.1

Easy-to-use and free code editor