Oracle RAC集群搭建(二)-基础环境配置

01,创建用户,用户组

[root@rac1 ~]# groupadd -g 501 oinstall
[root@rac1 ~]# groupadd -g 502 dba
[root@rac1 ~]# groupadd -g 503 asmadmin
[root@rac1 ~]# groupadd -g 504 asmdba
[root@rac1 ~]# groupadd -g 505 asmoper
[root@rac1 ~]# useradd -u 501 -g oinstall -G asmadmin,asmdba,asmoper grid
[root@rac1 ~]# useradd -u 502 -g oinstall -G dba,asmdba oracle
passwd oracle
passwd grid             ----配置密码

02,配置hosts

127.0.0.1   localhost localhost.localdomain localhost4 localhost4.localdomain4
::1         localhost localhost.localdomain localhost6 localhost6.localdomain6
192.168.0.171 rac1
192.168.0.177 rac2
192.168.0.173 rac1vip
192.168.0.174 rac2vip
172.168.0.171 rac1prv
172.168.0.177 rac2prv
192.168.0.176 dbscan

03,关闭时间同步

systemctl stop ntp

04, 修改内核

vim /etc/sysctl.conf

kernel.shmmni = 4096
kernel.sem = 250 32000 100 128
fs.file-max = 6553600
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


sysctl -p   立即生效

05, 限制参数

/etc/security/limits.conf

grid soft nproc 2047
grid hard nproc 16384
grid soft nofile 1024
grid hard nofile 65536
oracle soft nproc 2047
oracle hard nproc 16384
oracle soft nofile 1024
oracle hard nofile 65536

06, 配置profile

if [ $USER = "oracle" ] || [ $USER = "grid" ]; then
　　if [ $SHELL = "/bin/ksh" ]; then
　　　　ulimit -p 16384
　　　　ulimit -n 65536
　　else
　　　　ulimit -u 16384 -n 65536
　　fi
　umask 022
fi

07,登录限制

 /etc/pam.d/login
session required pam_limits.so

08,创建目录

[root@rac1 ~]# mkdir -p /oracle/app/oraInventory
[root@rac1 ~]# chown -R grid:oinstall /oracle/app/oraInventory
[root@rac1 ~]#  chmod -R 775 /oracle/app/oraInventory

[root@rac1 ~]# mkdir -p /oracle/11.2.0/grid/crs/
[root@rac1 ~]# chown -R grid:oinstall /oracle/11.2.0/grid
[root@rac1 ~]#  chmod -R 775 /oracle/11.2.0/grid

[root@rac1 ~]# cd /oracle/11.2.0
[root@rac1 11.2.0]# mkdir 11.2.0
[root@rac1 11.2.0]# chown -R grid:oinstall 11.2.0
[root@rac1 11.2.0]# chmod -R 775 11.2.0



[root@rac1 11.2.0]# mkdir -p /oracle/app/oracle
[root@rac1 11.2.0]# chown -R oracle:oinstall /oracle/app/oracle
[root@rac1 11.2.0]# chmod -R 775 /oracle/app/oracle
[root@rac1 11.2.0]# mkdir -p /oracle/app/oracle/product/11.2.0/db_1
[root@rac1 11.2.0]# chown -R oracle:oinstall /oracle/app/oracle/product/11.2.0/db_1
[root@rac1 11.2.0]# chmod -R 775 /oracle/app/oracle/product/11.2.0/db_1

09.软件环境安装

rpm -q --qf '%{NAME}-%{VERSION}-%{RELEASE} (%{ARCH})\n' binutils \
compat-libstdc++-33 \
elfutils-libelf \
elfutils-libelf-devel \
gcc \
gcc-c++ \
glibc \
glibc-common \
glibc-devel \
glibc-headers \
ksh \
libaio \
libaio-devel \
libgcc \
libstdc++ \
libstdc++-devel \
make \
sysstat \
unixODBC \
unixODBC-devel


没有的使用

yum -y install ***  (什么没有写什么)