CentOS7.3 on Deployment Installation oracle12c

Preparatory work:

1. A set of CentOS7.3
2. ORACLE12C installation Package
3. Preferably set to dual core, 4G memory, 8G virtual memory
4. Nat Mode installation process: 1. Turn off firewall self-booting and related features and enhanced security features

systemctl disable firewalld.servicesystemctl stop firewalld.servicesetenforce 0

2. Create an XFS file system and mount it no less than 15G, mount the directory as/orc

Create a new 20G disk SDB

fdisk /dev/sdb              //新建分区，生成sdb1，默认空间大小即可mkfs -t xfs /dev/sdb1           //格式化磁盘，格式为xfsmount /dev/sdb1 /orc        //挂载至/orc目录下

vim /etc/hostname   //更改主机名Oracle   添加    HOSTNAME=oraclevim /etc/hosts    192.168.100.151 Oracle      //创建快捷域名解析

3.yum Install the required packages

yum -y install binutils compat-libcap1 compat-libstdc++-33 gcc gcc-c++ glibc glibc-devel ksh libaio libaio-devel libgcc libstdc++ libstdc++-devel libXi libXtst make sysstat unixODBC unixODBC-devel

4. Adjust kernel parameters

vim /etc/sysctl.conf        //添加以下内容    fs.aio-max-nr = 1048576   //异步IO请求数目 推荐值是：1048576 其实它等于 1024*1024 也就是 1024K 个    fs.file-max = 6815744  //打开的文件句柄的最大数量,防止文件描述符耗尽的问题    kernel.shmall = 2097152 //共享内存总量 页为单位,内存除以4K所得    kernel.shmmax = 4294967295      kernel.shmmni = 4096    kernel.sem = 250 32000 100 128  //SEMMSL: 每个信号集的最大信号数量 SEMMNS：用于控制整个 Linux 系统中信号的最大数 SEMOPM： 内核参数用于控制每个 semop 系统调用可以执行的信号操作的数量 SEMMNI ：内核参数用于控制整个 Linux 系统中信号集的最大数量    net.ipv4.ip_local_port_range = 9000 65500  //用于向外连接的端口范围      net.core.rmem_default = 262144 //套接字接收缓冲区大小的缺省值    net.core.rmem_max = 4194304   //套接字接收缓冲区大小的最大值    net.core.wmem_default = 262144 //套接字发送缓冲区大小的缺省值    net.core.wmem_max = 1048576   //套接字发送缓冲区大小的最大值sysctl -p       //重新加载配置文件

5. User Environment Configuration

groupadd oinstall       //添加用户组groupadd dba            //添加用户组useradd -g oinstall -G dba oracle       //添加用户oracle，所属用户组为oinstall，所属附属用户组为dbapasswd oracle   //密码123123mkdir -p /orc/app/oracle        //创建工作目录chown -R oracle:oinstall /orc/app/      //改变目录属主属组chmod -R 755 /orc/app/oracle/       //改变权限

vim /home/oracle/.bash_profile   //oracle用户环境配置,添加以下内容    umask 022    ORACLE_BASE=/orc/app/oracle    ORACLE_HOME=/orc/app/oracle/product/12.2.0/dbhome_1/    ORACLE_SID=orcl    NLS_LANG="SIMPLIFIED CHINESE_CHINA".UTF8    PATH=$PATH:$HOME/.local/bin:$HOME/bin:$ORACLE_HOME/bin    LANG=zh_CN.UTF-8    export PATH LANG NLS_LANG ORACLE_BASE ORACLE_HOME ORACLE_SID

6.oracle user resource limit, using Pam_limits authentication module

vim /etc/pam.d/login        //末尾添加    session    required     /lib/security/pam_limits.so    session    required     pam_limits.so

vim /etc/security/limits.conf       //末尾添加    oracle        soft    nproc           2047       //单用户可使用的进程数量    oracle        hard    nproc           16384    oracle        soft    nofile          1024       //用户可打开的文件数量    oracle        hard    nofile          65536    oracle        soft    stack           10240      //堆栈设置

vim /etc/profile        //末尾添加if [ $USER = "oracle" ] then   if [ $SHELL = "/bin/ksh" ]     then       ulimit -p 16384       //缓冲区大小       ulimit -p 65536   else     ulimit -u 16384 -n 65536    //进程数  文件数   fifi

7. Install Oracle

Mount the prepared Oracle installation package folder in/ABC for use

在图形化界面中以root身份进行如下操作xhost +             //所有用户都能访问X serversu - oracle   //切换到oracle用户cd /abc         //安装包挂载目录        export DISPLAY=:0.0./runInstaller      //运行安装程序

8. Install the pop-up window handling

su - root       //切换到root用户/orc/app/oraInventory/orainstRoot.sh/orc/app/oracle/product/12.2.0/dbhome_1/root.sh

9.web Interface Management

rpm -ivh flash-player-npapi-26.0.0.131-release.x86_64.rpm        //手动安装flash插件

Open the Firefox browser in the graphical interface to access https://Oracle:5500/em, login: sys password: abc123 check: As Sysdba

10. Log in using the command line interface

sqlplus / as sysdba  //sys用户是oracle的最高管理员所以要加上as如果是普通用户登录   sqlplus 用户名/密码SQL> help index     //查看命令列表，sql中不区分大写小写SQL> show user       //查看当前用户

CentOS7.3 on Deployment Installation oracle12c