Linux下安装Oracle 11g 软、硬件环境检测和修改
Linux安装Oracle 11G 系统硬件要求:
1. 内存::必须高于1G的物理内存
检查内存大小:grep MemTotal /proc/meminfo
2. 交换空间:一般为内存的2倍,例如:1G的内存可以设置swap 分区为3G大小
1))检查交换空间大小: grep SwapTotal /proc/meminfo
2)增加交换分区
创建/home/swap这么一个分区文件。文件的大小是5120000个block,一般情况下1个block为1K,所以这里空间是5G。
dd if=/dev/zero of=/home/swap bs=1024 count=5120000
接着再把这个分区变成swap分区。
mkswap /home/swap
然后把它加到fstab里面
echo "/home/swap swap swap defaults 0 0" >> /etc/fstab
3. 硬盘 :5G以上
检查硬盘空间情况:df -h
Linux安装Oracle 11G 系统对软件要求:
1. 检查软件需求,没有的yum install安装
rpm -q binutils compat-libstdc++-33 elfutils-libelf elfutils-libelf-devel glibc glibc-common glibc-devel gcc- gcc-c++ libaio-devel libaio libgcc libstdc++ libstdc++-devel make sysstat unixODBC unixODBC-devel pdksh
(这里如果出现没有安装的,那么就要把Linux光盘放入,进入Server文件夹,找到对应的RPM包,运行RPM命令来进行安装,如果喜欢图形界面的话,在图像界面也可以通过双击对应的RPM包来安装。需要注意的是在安装libaio-devel unixODBC unixODBC-devel 这3个软件包的时候,除了安装X64的包以为,还要安装i386的包,不能因为是X64的系统,就不装i386的包了。 )
注意:安装 elfutils-libelf-devel 时候,因为存在互相依存关系,需要2个同时安装。
rpm -ivh elfutils-libelf-devel-0.137-3.el5.x86_64.rpm elfutils-libelf-devel-static-0.137-3.el5.x86_64.rpm
系统文件的配置:
1. 编辑 /etc/sysctl.conf,添加以下行:
# Kernel paramaters required by Oracle 11gR2
fs.file-max = 6815744
fs.aio-max-nr = 1048576
kernel.shmmni = 4096
kernel.sem = 250 32000 100 128
net.ipv4.ip_local_port_range = 9000 65500
net.core.rmem_default = 4194304
net.core.rmem_max = 4194304
net.core.wmem_default = 262144
net.core.wmem_max = 1048576
kernel.shmmax = 68719476736
kernel.shmall = 4294967296
其中
kernel.shmmax 和 kernel.shmall 原文件已有的,可以不加
2. 编辑 /etc/security/limits.conf,,添加以下行:
oracle soft nproc 2047
oracle hard nproc 16384
oracle soft nofile 1024
oracle hard nofile 65536
3. 编辑 /etc/pam.d/login, 添加以下行:
session required /lib64/security/pam_limits.so
session required pam_limits.so
【注意:如果是X64的系统,那么这里就要用 /lib64/security/pam_limits.so,不然系统可能会在服务器上无法登录!】
4. 编辑 /etc/profile,添加以下行:
if [ $USER = "oracle" ]; then
if [ $SHELL = "/bin/ksh" ]; then
ulimit -p 16384
ulimit -n 65536
else
ulimit -u 16384 -n 65536
fi
fi
安装过程参考:
推荐阅读:
Linux上Oracle 11g安装步骤图文详解
Linux操作系统中Oracle 11g数据库安装过程图文详解
CentOS 5.6 上安装 Oracle 11g R2 单实例数据库详解
Oracle VM虚拟机中安装Oracle Clusterware 11g步骤
VM虚拟机下在Linux上安装Oracle 11G单实例数据库

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