Cấu hình RHEL/OEL6 cài đặt Oracle 11G

1. Yêu cầu tối thiểu:
• RAM tối thiểu 1G
• Yêu cầu Swap:
• RAM 1G - 2G   ==> Swap = RAM*1.5
• RAM 2G - 16G ==> Swap = RAM*1
• RAM >16G       ==> Swap = RAM
• Thư mục /tmp từ 1G - 2TB
• Oracle software ~ 4.4G
2. Cấu hình OS
• Tạo user
• groupadd dba
• groupadd oinstall
• useradd -g dba -G oinstall oracle
• Kiểm tra các package thiếu
• rpm -q binutils compat-libstdc++-33 glibc ksh libaio libgcc libstdc++ make compat-libcap1 gcc gcc-c++ glibc-devel libaio-devel libstdc++-devel sysstat compat-libstdc++-33
• Chỉnh sửa kernel
• vi /etc/sysctl.conf

kernel.shmall = physical RAM size / pagesize For most systems, this will be the value 2097152 (8G)

kernel.shmmax = 1/2 of physical RAM (the value 2147483648 for a system with 4GB of physical RAM)

kernel.shmmni = 4096
kernel.sem = 250 32000 100 128
fs.file-max = 512 x processes (for example 6815744 for 13312 processes)
fs.aio-max-nr = 1048576
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

• Sửa lại file limit.conf
• vi /etc/security/limits.conf

oracle soft nproc 2047

oracle hard nproc 16384
oracle soft nofile 1024
oracle hard nofile 65536 
oracle soft stack 10240

• Sửa lại file /etc/pam.d/login
• vi /etc/pam.d/login

session required pam_limits.so

• Sửa lại file /etc/profile
• vi /etc/profile

if [ $USER = "oracle" ]; then

    if [ $SHELL = "/bin/ksh" ]; then

       ulimit -u 16384 

       ulimit -n 65536

    else

       ulimit -u 16384 -n 65536

    fi

fi

• Sửa lại file /etc/hosts
• vi /etc/hosts

192.168.2.2     ncdung.oracle.com       ncdung

• Disable SELinux
• vi /etc/selinux/config

#SELINUX=enforcing

SELINUX=disabled





NOTE: 1441282.1