以下检查，最好在二台机器上都进行操作；

• 检查crs状态:

[grid@rac1~]$crsctlcheckcrs
CRS-4638:OracleHighAvailabilityServicesisonline
CRS-4537:ClusterReadyServicesisonline
CRS-4529:ClusterSynchronizationServicesisonline
CRS-4533:EventManagerisonline

• 检查集群节点

[grid@rac1~]$olsnodes-n
rac11
rac22

1. 检查监听器进程

[grid@rac1~]$srvctlstatuslistener
监听程序LISTENER已启用
监听程序LISTENER正在节点上运行:rac1,rac2

• 检查Oracle ASM

[grid@rac1~]$srvctlstatusasm-a
ASM正在rac1,rac2上运行
ASM已启用。

• 检查OCR

[grid@rac1~]$ocrcheck
StatusofOracleClusterRegistryisasfollows:
Version:3
Totalspace(kbytes):262120
Usedspace(kbytes):2248
Availablespace(kbytes):259872
ID:1968086688Device/FileName:+OCR_VOTE
Device/FileintegritychecksucceededDevice/FilenotconfiguredDevice/FilenotconfiguredDevice/FilenotconfiguredDevice/Filenotconfigured
Clusterregistryintegritychecksucceeded
Logicalcorruptioncheckbypassedduetonon-privilegeduser

• 检查表决磁盘

[grid@rac1~]$crsctlquerycssvotedisk
##STATEFileUniversalIdFileNameDiskgroup
------------------------------------------
ONLINE433b29a662934f14bf5ce26f5c5f1bbf(ORCL:OCR_VOTE01)[OCR_VOTE]

• 安装oracle11gR2

[oracle@rac1~]$unziplinux.x64_11gR2_database_1of2.zip
[oracle@rac1~]$unziplinux.x64_11gR2_database_2of2.zip
[oracle@rac1~]$cddatabase/
[oracle@rac1database]$./runInstaller

在二台机器上运行脚本
[root@rac1~]#/u01/app/oracle/product/11.2.0/db_1/root.sh
RunningOracle11groot.shscript...
Thefollowingenvironmentvariablesaresetas:
ORACLE_OWNER=oracle
ORACLE_HOME=/u01/app/oracle/product/11.2.0/db_1
Enterthefullpathnameofthelocalbindirectory:[/usr/local/bin]:
Thefile"dbhome"alreadyexistsin/usr/local/bin.Overwriteit?(y/n)
[n]:y
Copyingdbhometo/usr/local/bin...
Thefile"oraenv"alreadyexistsin/usr/local/bin.Overwriteit?(y/n)
[n]:y
Copyingoraenvto/usr/local/bin...
Thefile"coraenv"alreadyexistsin/usr/local/bin.Overwriteit?(y/n)
[n]:y
Copyingcoraenvto/usr/local/bin...
 
 
Entrieswillbeaddedtothe/etc/oratabfileasneededby
DatabaseConfigurationAssistantwhenadatabaseiscreated
Finishedrunninggenericpartofroot.shscript.
Nowproduct-specificrootactionswillbeperformed.
Finishedproduct-specificrootactions.

• 创建数据库

#su�Coracle
$dbca

至此，oracle 11gr2 rac安装完成,可以使用plsql进行连接测试即可