系统安装规划

OS version	Red Hat 7.6  x86_64
HOSTNAME	lsy
IP 	192.168.0.120
Root账号密码	root/123456
Oracle version	Oracle 19.3
数据库名	orcl
Oracle软件下载链接 https://www.oracle.com/database/technologies/oracle19c-linux-downloads.html

安装前配置

修改hosts文件

[root@memaapex ~]# vim /etc/hosts
127.0.0.1   localhost localhost.localdomain localhost4 localhost4.localdomain4
::1         localhost localhost.localdomain localhost6 localhost6.localdomain6
192.168.3.6  memaapex

编辑内核参数sysctl.conf

[root@memaapex ~]# vim /etc/sysctl.conf
添加：
fs.file-max = 6815744
kernel.sem = 250 32000 100 128
kernel.shmmni = 4096
kernel.shmall = 1073741824
kernel.shmmax = 4398046511104
kernel.panic_on_oops = 1
net.core.rmem_default = 262144
net.core.rmem_max = 4194304
net.core.wmem_default = 262144
net.core.wmem_max = 1048576
net.ipv4.conf.all.rp_filter = 2
net.ipv4.conf.default.rp_filter = 2
fs.aio-max-nr = 1048576
net.ipv4.ip_local_port_range = 9000 65500

重新载入
[root@memaapex etc]# /sbin/sysctl -p
fs.file-max = 6815744
kernel.sem = 250 32000 100 128
kernel.shmmni = 4096
kernel.shmall = 1073741824
kernel.shmmax = 4398046511104
kernel.panic_on_oops = 1
net.core.rmem_default = 262144
net.core.rmem_max = 4194304
net.core.wmem_default = 262144
net.core.wmem_max = 1048576
net.ipv4.conf.all.rp_filter = 2
net.ipv4.conf.default.rp_filter = 2
fs.aio-max-nr = 1048576
net.ipv4.ip_local_port_range = 9000 65500

修改oracle访问限制

[root@memaapex etc]# vi /etc/security/limits.d/oracle-database-preinstall-19c.conf

添加：
oracle   soft   nofile    1024
oracle   hard   nofile    65536
oracle   soft   nproc    16384
oracle   hard   nproc    16384
oracle   soft   stack    10240
oracle   hard   stack    32768
oracle   hard   memlock    134217728
oracle   soft   memlock    134217728

安装操作系统RPM包

yum install -y bc
yum install -y binutils
yum install -y compat-libcap1
yum install -y compat-libstdc++-33
#yum install -y dtrace-modules
#yum install -y dtrace-modules-headers
#yum install -y dtrace-modules-provider-headers
yum install -y dtrace-utils
yum install -y elfutils-libelf
yum install -y elfutils-libelf-devel
yum install -y fontconfig-devel
yum install -y glibc
yum install -y glibc-devel
yum install -y ksh
yum install -y libaio
yum install -y libaio-devel
yum install -y libdtrace-ctf-devel
yum install -y libXrender
yum install -y libXrender-devel
yum install -y libX11
yum install -y libXau
yum install -y libXi
yum install -y libXtst
yum install -y libgcc
yum install -y librdmacm-devel
yum install -y libstdc++
yum install -y libstdc++-devel
yum install -y libxcb
yum install -y make
yum install -y net-tools # Clusterware
yum install -y nfs-utils # ACFS
yum install -y python # ACFS
yum install -y python-configshell # ACFS
yum install -y python-rtslib # ACFS
yum install -y python-six # ACFS
yum install -y targetcli # ACFS
yum install -y smartmontools
yum install -y sysstat

# Added by me.
yum install -y unixODBC

创建组和用户及目录

[root@memaapex ~]#groupadd -g 54321 oinstall
[root@memaapex ~]#groupadd -g 54322 dba
[root@memaapex ~]#groupadd -g 54323 oper

[root@memaapex ~]#useradd -u 54321 -g oinstall -G dba,oper oracle
[root@memaapex ~]#mkdir -p /u01/app/oracle/product/19.0.0/dbhome_1
[root@memaapex ~]#mkdir -p /u01/oradata
[root@memaapex ~]#chown -R oracle:oinstall /u01
[root@memaapex ~]#chmod -R 775 /u01

修改firewall和selinux

[root@memaapex ~]#vim /etc/selinux/config
修改selinux参数
SELINUX=disabled
关闭和禁用防火墙
[root@memaapex ~]#systemctl stop firewalld
[root@memaapex ~]#systemctl disable firewalld

编辑Oracle profile文件

[root@memaapex ~]#vi  /home/oracle/.bash_profile

# Oracle Settings
export TMP=/tmp
export TMPDIR=$TMP

export ORACLE_HOSTNAME=lsy
export ORACLE_UNQNAME=orcl
export ORACLE_BASE=/u01/app/oracle
export ORACLE_HOME=$ORACLE_BASE/product/19.0.0/dbhome_1
export ORACLE_SID=orcl

export PATH=/usr/sbin:/usr/local/bin:$PATH
export PATH=$ORACLE_HOME/bin:$PATH

export LD_LIBRARY_PATH=$ORACLE_HOME/lib:/lib:/usr/lib
export CLASSPATH=$ORACLE_HOME/jlib:$ORACLE_HOME/rdbms/jlib

数据库软件安装

上传Oracle安装包$ORACLE_HOME

[root@memaapex u01]# chown -R oracle:oinstall /u01
[root@memaapex u01]# chmod -R 775 /u01
[root@memaapex u01]# cd $ORACLE_HOME
[root@memaapex u01]# unzip LINUX.X64_193000_db_home.zip

图形化安装数据库软件

[root@memaapex soft]# xhost +
access control disabled, clients can connect from any host
Printenv 显示display及所有参数
[root@memaapex soft]#

NETCA创建监听

[oracle@memaapex dbhome_1]$ netca
Oracle Net Services Configuration:

DBCA建库

至此数据库安装完成