1.修改系统参数: 在/etc/sysctl.conf 中添加如下内容 fs.aio-max-nr = 1048576fs.file-max = 6815744kernel.shmall = 2097152kernel.shmmax = 536870912kernel.shmmni = 4096kernel.sem = 250 32000 100 128net.ipv4.ip_local_port_range = 9000 65500net.co
1. 修改系统参数: 在 /etc/sysctl.conf 中添加如下内容
fs.aio-max-nr = 1048576 fs.file-max = 6815744 kernel.shmall = 2097152 kernel.shmmax = 536870912 kernel.shmmni = 4096 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 = 1048586使更改立即生效:
#sysctl -p
2. 创建oracle组和用户
#groupadd oinstall #groupadd dba #groupadd oper #useradd -g oinstall -G dba,oper oracle11 #passwd oracle11
3. 设置oracle用户的shell limit
oracle11 hard nproc 16384 oracle11 soft nofile 1024 oracle11 hard nofile 65536
4. 运行 "runInstaller" 进行安装
其中有一步会检查系统是否缺少依赖组件,若缺少,用红帽安装光盘安装相应rpm包即可
若系统没有设置交换分区,也会提示错误,忽略这个错误
其他的按照提示一步步操作即可,直到安装成功
5. 设置环境变量
安装成功后,$ORACLE_HOME, $ORACLE_SID这些环境变量并没有添加,为了使用方便,手动添加下
打开 "~/.bashrc",设置如下环境变量
export ORACLE_HOME=/home/oracle11/app/oracle11/product/11.2.0/dbhome_1 export ORACLE_SID=orcl export PATH=$PATH:$ORACLE_HOME/bin
6. 开启启动数据库
1) 编辑 /etc/oratab,将最后一个参数"N"设为"Y"
orcl:/home/oracle11/app/oracle11/product/11.2.0/dbhome_1:Y2) 编写启动脚本 "/etc/init.d/oracle11", 内容如下
#!/bin/sh #chkconfig: 2345 99 01 #description: ORACLE 11g Server ORACLE_HOME=/home/oracle11/app/oracle11/product/11.2.0/dbhome_1 if [ ! -f $ORACLE_HOME/bin/dbstart ]; then echo "ORACLE cannot start" exit fi case "$1" in 'start') echo "Starting Oracle11 Database..." su - oracle11 -c "$ORACLE_HOME/bin/dbstart" su - oracle11 -c "$ORACLE_HOME/bin/emctl start dbconsole" ;; 'stop') echo "Stoping Oracle Database" su - oracle11 -c "$ORACLE_HOME/bin/emctl stop dbconsole" su - oracle11 -c "$ORACLE_HOME/bin/dbshut" ;; esac3) 增加可执行权限
chmod 777 /etc/init.d/oracle11
4) 开机执行脚本
chkconfig -add oracle11

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