11.2.0.4安装环境准备for redhat as 6.4 64位

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1.创建组和用户
groupadd oinstall
groupadd dba
useradd -g oinstall -G dba oracle
passwd oracle

2.配置内核参数
fs.aio-max-nr = 1048576
fs.file-max = 6815744
kernel.shmall = 2097152
kernel.shmmax = 536870912 --根据物理机内存设定,建议设置成内存一半大小
kernel.shmmni = 4096 --＃4k页面，默认只支撑8G内存。若内存大于8G，则建议值=物理内存/4k
kernel.sem = 250 32000 100 128
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
/sbin/sysctl -p

3.配置资源限制
vim /etc/security/limits.conf
oracle              soft    nproc   2047
oracle              hard    nproc   16384
oracle              soft    nofile 1024
oracle              hard    nofile 65536
oracle              soft    stack   10240

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

4.创建目录并给权限
mkdir -p /u01/app/oracle
chown -R oracle:oinstall /u01
chmod -R 775 /u01/app/oracle

5.修改oracle用户环境变量
export ORACLE_BASE=/u01/app/oracle
export ORACLE_HOME=$ORACLE_BASE/product/11g
export ORACLE_SID=orcl
export ORACLE_TERM=xterm
export NLS_LANG=AMERICAN;
export ORA_NLS33=$ORACLE_HOME/ocommon/nls/admin/data
LD_LIBRARY_PATH=$ORACLE_HOME/lib:/lib:/usr/lib
LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/usr/local/lib
export LD_LIBRARY_PATH
export PATH=$PATH:$ORACLE_HOME/bin

6.修改/etc/hosts

ipaddr hostname

192.168.100.10 primary

7.安装的时候会自动检测包未安装的包直接yum安装即可