2.6 为安装用户设置资源限制
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2.6.1 修改/etc/security/limits.conf
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以 root 用户身份，在每个 Oracle RAC 节点上，在 /etc/security/limits.conf 文件中添加如下内容，或者执行执行如下命令：
[root@rac1 ~]# cat >> /etc/security/limits.conf <2.6.2 修改/etc/pam.d/login
在每个 OracleRAC 节点上，在 /etc/pam.d/login 文件中添加或编辑下面一行内容：
[root@rac1 ~]# cat >> /etc/pam.d/login <?
2.6.3 shell 的限制
对默认的 shell 启动文件进行以下更改，以便更改所有 Oracle 安装所有者的 ulimit 设置：
[root@rac1 ~]# cat >> /etc/profile <注：红色部分一起执行
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2.6.4 修改/etc/sysctl.conf
#vi /etc/sysctl.conf kernel.shmmax = 4294967295 kernel.shmall = 2097152 kernel.shmmni = 4096 kernel.sem = 250 32000 100 128 fs.file-max = 6815744 net.ipv4.ip_local_port_range = 9000 65500 net.core.rmem_default=262144 net.core.rmem_max=4194304 net.core.wmem_default=262144 net.core.wmem_max=1048576 fs.aio-max-nr=1048576使修改的参数生效：
[root@rac1 ~]# sysctl -p
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2.6.5 修改/etc/hosts文件（所有节点）
[root@rac1 ~]# cat/etc/hosts 127.0.0.1 localhost 192.168.56.5 rac1 192.168.57.5 rac1-priv 192.168.56.7 rac1-vip 192.168.56.6 rac2 192.168.57.6 rac2-priv 192.168.56.8 rac2-vip 192.168.56.9 rac-scan3 安装Grid
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在节点1，用grid用户运行runInstaller。
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[root@rac1 /]# /u01/oraInventory/orainstRoot.sh Changing permissions of /u01/oraInventory. Adding read,write permissions for group. Removing read,write,execute permissions forworld. Changing groupname of /u01/oraInventory tooinstall. The execution of the script is complete. [root@rac2 /]#/u01/oraInventory/orainstRoot.sh Changing permissions of /u01/oraInventory. Adding read,write permissions for group. Removing read,write,execute permissions forworld. Changing groupname of /u01/oraInventory tooinstall. The execution of the script is complete. [root@rac2 /]# --节点1执行root.sh, 过程很长： 17分钟： [root@rac1 /]# /u01/gridsoft/12.1.0/root.sh Performing root user operation for Oracle12c The following environment variables are setas: ORACLE_OWNER= grid ORACLE_HOME= /u01/gridsoft/12.1.0 Enter the full pathname of the local bindirectory: [/usr/local/bin]: Copying dbhome to /usr/local/bin ... Copying oraenv to /usr/local/bin ... Copying coraenv to /usr/local/bin ... Creating /etc/oratab file... Entries will be added to the /etc/oratabfile as needed by Database Configuration Assistant when adatabase is created Finished running generic part of rootscript. Now product-specific root actions will beperformed. Using configuration parameter file: /u01/gridsoft/12.1.0/crs/install/crsconfig_params 2014/08/07 02:42:
