大佬教程收集整理的这篇文章主要介绍了Centos6.5 + Oracle 11g r2 + nfs搭建RAC环境一，大佬教程大佬觉得挺不错的，现在分享给大家，也给大家做个参考。
环境要求：
1.2台系统为Centos6.5的机器，其中 1台做nfs（硬盘大小至少4T）
2. 每台机器至少2块网卡
3. 准备5个可用的IP地址（一个为scan,二台配置各配置public和private地址）
4. 内存至少2G以下内存，建议使用4G或者更高
地址规划：
第一台主机：rac1 网卡eth0IP地址：172.16.0.1/24 网卡eth1地址: 192.168.1.192/24
第一台主机：rac1 网卡eth0IP地址：172.16.0.2/24 网卡eth1: 192.168.1.193/24
虚拟IP地址：192.168.1.200
关闭ntp 并配置yum的本地源
关闭服务 #/etc/init.d/ntpdstop #chkconfigntpdoff #mv/etc/ntp.conf/etc/ntp.conf.org #mkdir/mnt/cdrom/ #mount/dev/cdrom/mnt/cdrom/ #vim/etc/yum.repos.d/CentOS-Media.repo name=CentOS-$releasever-Media baseurl=file:///mnt/cdrom/ gpgcheck=0 enabled=1
安装依赖软件包
#yum-yinstallbinutils-2*.rpm\ compat-libstdc++-33*.rpm\ elfutils-libelf-0.*.rpm\ elfutils-libelf-devel-*.rpm\ gcc-4*.rpm\ gcc-c++-4*.rpm\ glibc-2.*.rpm\ glibc-common-2*.rpm\ glibc-devel-2*.rpm\ libaio-0*.rpmlibgcc-4*.rpm\ libstdc++-4*.rpm\ libstdc++-devel*.rpm\ make-3*.rpm\ pdksh-*.rpm\ sysstat-7*.rpm\ libaio-devel-*.rpm\ unixODBC-2*.rpm\ unixODBC-devel-2*.rpm\
配置host文件
#vim/etc/hosts #Public 172.16.0.1rac1-priv 172.16.0.2rac2-priv #Virtual 192.168.1.194rac1-vip 192.168.1.195rac2-vip #Scan 192.168.1.200rac-scan #NAS 192.168.1.194nas1
修改内核参数
#vim/etc/sysctl.conf在最后面添加 fs.aio-max-nr=1048576 fs.file-max=6815744 kernel.shmall=2097152 kernel.shmmax=536870912 kernel.shmmni=4096 kernel.sem=25032000100128 net.ipv4.ip_local_port_range=900065500 net.core.rmem_default=262144 net.core.rmem_max=4194304 net.core.wmem_default=262144 net.core.wmem_max=1048576 #sysctl-p
#vi/etc/security/limits.conf oraclesoftnproc2047 oraclehardnproc16384 oraclesoftnofile1024 oraclehardnofile65536 gridsoftnproc2047 gridhardnproc16384 gridsoftnofile1024 gridhardnofile65536
vim/etc/pam.d/login在最后添加 sessionrequiredpam_limits.so
#vim/etc/profile在最后添加 if[$USER="oracle"]||[$USER="grid"];then if[$SHELL="/bin/ksh"];then ulimit-p16384 ulimit-n65536 else ulimit-u16384-n65536 fi umask022 fi
创建用户和组并创建相应的密码
#/usr/sbin/groupadd-g501oinstall #/usr/sbin/groupadd-g502dba #/usr/sbin/groupadd-g503oper #/usr/sbin/groupadd-g504asmadmin #/usr/sbin/groupadd-g505asmoper #/usr/sbin/groupadd-g506asmdba #/usr/sbin/useradd-goinstall-Gdba,asmdba,operoracle #/usr/sbin/useradd-goinstall-Gasmadmin,asmoper,oper,dbagrid #passwdoracle #passwdgrid
创建目录并设置相应权限
#mkdir-p/u01/app/oracle #chown-Roracle:oinstall/u01/app/oracle #chmod-R775/u01/app/oracle #mkdir-p/u01/app/oracle/product/11.2.0/db_1 #chown-Roracle:oinstall/u01/app/oracle/product/11.2.0/db_1 #chmod-R775/u01/app/oracle/product/11.2.0/db_1 #mkdir-p/u01/app/grid #chown-Rgrid.oinstall/u01/app/grid #chmod-R775/u01/app/grid #mkdir-p/u01/app/11.2.0/grid #chown-Rgrid:oinstall/u01/app/11.2.0/grid #chmod-R775/u01/app/11.2.0/grid #mkdir-p/u01/app/oraInventory #chown-Rgrid:oinstall/u01/app/oraInventory #chmod-R775/u01/app/oraInventory #mkdir-p/u01/oradata #mkdir-p/u01/shared_config #chown-Roracle:oinstall/u01/oradata #chown-Rgrid:oinstall/u01/shared_config #chmod-R775/u01/oradata/u01/shared_config
#su-grid $vim/home/zkyg/.bash_profile aliasdf='df-h' aliasdu='du-sh' aliasla='ls-lha' ORACLE_SID=NFS1;exportORACLE_SID JAVA_HOME=/usr/local/java;exportJAVA_HOME ORACLE_BASE=/u01/app/grid;exportORACLE_BASE ORACLE_HOME=/u01/app/11.2.0/grid;exportORACLE_HOME ORACLE_PATH=/u01/app/oracle/common/oracle/sql;exportORACLE_PATH ORACLE_TERM=xterm;exportORACLE_TERM NLS_DATE_FORMAT="DD-MON-YYYYHH24:MI:SS";exportNLS_DATE_FORMAT TNS_ADMIN=$ORACLE_HOME/network/admin;exportTNS_ADMIN ORA_NLS11=$ORACLE_HOME/nls/data;exportORA_NLS11 PATH=.:${JAVA_HOME}/bin:${PATH}:$HOME/bin:$ORACLE_HOME/bin PATH=${PATH}:/usr/bin:/bin:/usr/bin/X11:/usr/local/bin PATH=${PATH}:/u01/app/common/oracle/bin exportPATH LD_LIBRARY_PATH=$ORACLE_HOME/lib LD_LIBRARY_PATH=${LD_LIBRARY_PATH}:$ORACLE_HOME/oracm/lib LD_LIBRARY_PATH=${LD_LIBRARY_PATH}:/lib:/usr/lib:/usr/local/lib exportLD_LIBRARY_PATH CLASSPATH=$ORACLE_HOME/JRE CLASSPATH=${CLASSPATH}:$ORACLE_HOME/jlib CLASSPATH=${CLASSPATH}:$ORACLE_HOME/rdbms/jlib CLASSPATH=${CLASSPATH}:$ORACLE_HOME/network/jlib exportCLASSPATH THREADS_FLAG=native;exportTHREADS_FLAG exportTEMP=/tmp exportTMPDIR=/tmp umask022
aliasdf='df-h' aliasdu='du-sh' aliasla='ls-lha' ORACLE_SID=racdb1;exportORACLE_SID ORACLE_UNQNAME=racdb;exportORACLE_UNQNAME JAVA_HOME=/usr/local/java;exportJAVA_HOME ORACLE_BASE=/u01/app/oracle;exportORACLE_BASE ORACLE_HOME=$ORACLE_BASE/product/11.2.0/db_1;exportORACLE_HOME ORACLE_PATH=/u01/app/common/oracle/sql;exportORACLE_PATH ORACLE_TERM=xterm;exportORACLE_TERM NLS_DATE_FORMAT="DD-MON-YYYYHH24:MI:SS";exportNLS_DATE_FORMAT TNS_ADMIN=$ORACLE_HOME/network/admin;exportTNS_ADMIN ORA_NLS11=$ORACLE_HOME/nls/data;exportORA_NLS11 PATH=.:${JAVA_HOME}/bin:${PATH}:$HOME/bin:$ORACLE_HOME/bin PATH=${PATH}:/usr/bin:/bin:/usr/bin/X11:/usr/local/bin PATH=${PATH}:/u01/app/common/oracle/bin exportPATH LD_LIBRARY_PATH=$ORACLE_HOME/lib LD_LIBRARY_PATH=${LD_LIBRARY_PATH}:$ORACLE_HOME/oracm/lib LD_LIBRARY_PATH=${LD_LIBRARY_PATH}:/lib:/usr/lib:/usr/local/lib exportLD_LIBRARY_PATH CLASSPATH=$ORACLE_HOME/JRE CLASSPATH=${CLASSPATH}:$ORACLE_HOME/jlib CLASSPATH=${CLASSPATH}:$ORACLE_HOME/rdbms/jlib CLASSPATH=${CLASSPATH}:$ORACLE_HOME/network/jlib exportCLASSPATH THREADS_FLAG=native;exportTHREADS_FLAG exportTEMP=/tmp exportTMPDIR=/tmp umask022
配置ssh双机信任（gird，oracle用户下都要配置）以oracle为例子
$ssh-keygen-trsa $ssh-keygen-tdsa $ssh-keygen-trsa $ssh-keygen-tdsa $cat.ssh/id_rsa.pub>>.ssh/authorized_keys $cat.ssh/id_dsa.pub>>.ssh/authorized_keys $sshrac2cat.ssh/id_rsa.pub>>.ssh/authorized_keys $sshrac2cat.ssh/id_dsa.pub>>.ssh/authorized_keys $scp.ssh/authorized_keysrac2:.ssh/authorized_keys
在二台机器测试是否正常
$sshrac1date $sshrac2date
以上操作需要在二台机器都要操作
配置nfs
Rac1上使用fdisk/dev/sdb分2个区sdb1、sdb2并进行格式化 #mkfs.ext3/dev/sdb1 #mkfs.ext3/dev/sdb2 rac1上创建共享目录 #mkdir-p/shared_config #mkdir-p/shared_data #vi/etc/fstab添加以下： /dev/sdb1/shared_configext3defaults00 /dev/sdb2/shared_dataext3defaults00 #vi/etc/exports设置共享 /shared_config*(rw,sync,no_wdelay,insecure_locks,no_root_squash) /shared_data*(rw,no_root_squash) #chkconfignfson开启nfs服务 #servicenfsrestart #vi/etc/fstab添加以下开机挂载共享目录 nas1:/shared_config/u01/shared_confignfsrw,bg,hard,nointr,noac,tcp,vers=3,timeo=600,rsize=32768,wsize=32768,actimeo=000 nas1:/shared_data/u01/oradatanfsrw,actimeo=000 挂载相应的目录 #mount/u01/shared_config #mount/u01/oradata #chowngrid:oinstall/u01/shared_config #chownoracle:oinstall/u01/oradata #chmod775/u01/oradata #chmod775/u01/app/11.2.0/grid
安装grid软件
unzipgrid-XXX.zip 在root下输入xhost+ #su�Cgrid $cdgrid-XXX $./runcluvfy.shstage-precrsinst-nrac1,rac2-fixup-verbose|teecheck_grid.txt 如果最后提示:集群服务设置的预检查成功.可以开始去安装grid否则请查看失败在什么地方解决后再次执行该命令行来检查. 运行安装目录下的runInstaller $./runInstaller
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