urity/limits.conf
echo "oracle soft nproc 2047" >> /etc/security/limits.conf
echo "oracle hard nproc 16384" >> /etc/security/limits.conf
echo "oracle soft nofile 1024" >> /etc/security/limits.conf
echo "oracle hard nofile 65536" >> /etc/security/limits.conf
###########
#aio
yes|cp /proc/sys/fs/aio-max-nr /bak/aio-max-nr
echo > /proc/sys/fs/aio-max-nr 1048576
###########
#Configuring Kernel Parameters for Linux
yes|cp /etc/sysctl.conf /bak/sysctl.conf
echo " ########### " >> /etc/sysctl.conf
echo "#xcl "${DATE} >> /etc/sysctl.conf
echo "fs.aio-max-nr = 1048576" >> /etc/sysctl.conf
echo "fs.file-max = 6815744" >> /etc/sysctl.conf
echo "kernel.shmall = 2097152" >> /etc/sysctl.conf
echo "kernel.shmmax = 536870912" >> /etc/sysctl.conf
echo "kernel.shmmni = 4096" >> /etc/sysctl.conf
echo "kernel.sem = 250 32000 100 128" >> /etc/sysctl.conf
echo "net.ipv4.ip_local_port_range = 1024 65000" >> /etc/sysctl.conf
echo "net.core.rmem_default=262144" >> /etc/sysctl.conf
echo "net.core.rmem_max=262144" >> /etc/sysctl.conf
echo "net.core.wmem_default=262144" >> /etc/sysctl.conf
echo "net.core.wmem_max=262144" >> /etc/sysctl.conf
/sbin/sysctl -p
###########
cp /etc/pam.d/login /bak/login
#64bit
echo "#xcl "${DATE} >> /etc/pam.d/login
echo "session required /lib/security/pam_limits.so" >> /etc/pam.d/login
echo "session required pam_limits.so" >> /etc/pam.d/login
#32bit
#session required pam_limits.so
######################################
#Limits
cat /etc/security/limits.conf
#AIO
cat /proc/sys/fs/aio-max-nr
#pam_limits.so
cat /etc/pam.d/login
#Displaying and Changing Kernel Parameter Values
cat /etc/sysctl.conf
######################################
注意:
/etc/sysctl.conf 文件中已有的参数,如kernel.shmmax和kernel.shmmni之类,要注释掉或直接在上面更改
例子中的参数为Oracle安装说明上的例子,实际中要以服务器实际配置为准. 如果不能准确确定具体值，在Oracle安装向导的第9步,对有误的参数向导也会给出参考值.
2.2 除了上面脚本自动处理的部份，还有一部份我没写到脚本中去，是需要手工操作的。
#给host加上ip 主机名，em会用到
cat /etc/hosts
hosts:
xx.xx.xx.xx erpdbserver.com erpdbserver
#设置本机主机名，要和/etc/hosts中设置的主机名对应
/etc/sysconfig/network
HOSTNAME=erpdbserver
#手工决定是否操作
#禁用网络时间服务
service ntpd stop
chkconfig ntpd off
#永久关闭防火墙
vi /etc/selinux/config
SELINUX=disabled
service iptables stop
chkconfig iptables off
2.2 针对上面的脚本，如果发现有误，因为上面脚本在更改相关文件时，都有做备份，可以利用下面的脚本更改回来.
脚本内容主要是删除用户和组，并将备份还原回去。
#! /bin/sh
############################
#
#author:xiongchuanliang
#create date:2012-12-25
#desc: Oracle 11g for Linux
############################
######################################
yes|cp /bak/bak_limits.conf /etc/security/limits.conf
yes|cp /bak/aio-max-nr /proc/sys/fs/aio-max-nr
yes|cp /bak/sysctl.conf /etc/sysctl.conf
/sbin/sysctl -p
yes|cp /bak/login /etc/pam.d/login
######################################
userdel oinstall
userdel dba
userdel oper
userdel asmadmin
userdel asmoper
userdel asmdba
groupdel dba
groupdel oper
groupdel asmadmin
groupdel asmoper
groupdel asmdba
######################################
#Limits
cat /etc/security/limits.conf
#AIO
cat /proc/sys/fs/aio-max-nr
#pam_limits.so
cat /etc/pam.d/login
#Displaying and Changing Kernel Parameter Values
cat /etc/sysctl.conf
#SELINUX=disabled