Sunday 4 March 2012

Oracle 11g Installation (Linux)

Oracle Database 11g Installation   PDF Version


Unpack Files
Unzip the files.

# 11.2.0.1
unzip linux.x64_11gR2_database_1of2.zip
unzip linux.x64_11gR2_database_2of2.zip



You should now have a single directory called "database" containing installation files.



Hosts File
The"/etc/hosts" file must contain a fully qualified name for the server.

<IP-address>  <fully-qualified-machine-name>  <machine-name>




Pre-requisite Installation 
Add  the following lines in the "/etc/sysctl.conf" file.

fs.suid_dumpable = 1
fs.aio-max-nr = 1048576
fs.file-max = 6815744
kernel.shmall = 2097152
kernel.shmmax = 536870912
kernel.shmmni = 4096
# semaphores: semmsl, semmns, semopm, semmni
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=1048586
Run the following command to update the current kernel parameters.

/sbin/sysctl -p
Add the following lines to the "/etc/security/limits.conf" file.

oracle              soft    nproc   2047
oracle              hard    nproc   16384
oracle              soft    nofile  4096
oracle              hard    nofile  65536
oracle              soft    stack   10240
Install the following packages.

# From Redhat Enterprise Linux 5 DVD

cd /media/cdrom/Server
rpm -Uvh binutils-2.*
rpm -Uvh compat-libstdc++-33*
rpm -Uvh compat-libstdc++-33*.i386.rpm
rpm -Uvh elfutils-libelf*
rpm -Uvh gcc-4.*
rpm -Uvh gcc-c++-4.*
rpm -Uvh glibc-2.*
rpm -Uvh glibc-common-2.*
rpm -Uvh glibc-devel-2.*
rpm -Uvh glibc-headers-2.*
rpm -Uvh ksh*
rpm -Uvh libaio-0.*
rpm -Uvh libaio-devel-0.*
rpm -Uvh libgomp-4.*
rpm -Uvh libgcc-4.*
rpm -Uvh libstdc++-4.*
rpm -Uvh libstdc++-devel-4.*
rpm -Uvh make-3.*
rpm -Uvh sysstat-7.*
rpm -Uvh unixODBC-2.*
rpm -Uvh unixODBC-devel-2.*
rpm -Uvh numactl-devel-*
cd /
eject
Create the groups and users required.

groupadd oinstall
groupadd dba
groupadd oper
groupadd asmadmin

useradd -g oinstall -G dba,oper,asmadmin oracle
passwd oracle


Additional Setup
The following setup tasks must be performed regardless of which setupmethod you used previously.
Disable
secure linux by editing the "/etc/selinux/config" file,making sure the SELINUX flag is set as follows.

SELINUX=disabled
This canbe done using the GUI tool (Applications > System Settings >Security Level). Click on the SELinux tab and disable the feature.The server might need a reboot for the changes to take effect.
Create the directories in which the Oracle  will be installed.

mkdir -p   /u01/app/oracle/product/11.2.0/db_1
chown -R oracle:oinstall   /u01
chmod -R 775   /u01

Login as root and issue the following command.

xhost +
Login  as the oracle user and add the following lines at the end of the".bash_profile" file, 

# Oracle Settings
TMP=/tmp; export TMP
TMPDIR=$TMP; export TMPDIR

ORACLE_HOSTNAME=<Server hostname>; export ORACLE_HOSTNAME
ORACLE_UNQNAME=<db instance name>; export ORACLE_UNQNAME
ORACLE_BASE=/u01/app/oracle; export ORACLE_BASE
ORACLE_HOME=$ORACLE_BASE/product/11.2.0/db_1; export ORACLE_HOME
ORACLE_SID=<db Instance>; export ORACLE_SID
PATH=/usr/sbin:$PATH; export PATH
PATH=$ORACLE_HOME/bin:$PATH; export PATH

LD_LIBRARY_PATH=$ORACLE_HOME/lib:/lib:/usr/lib; export LD_LIBRARY_PATH
CLASSPATH=$ORACLE_HOME/jlib:$ORACLE_HOME/rdbms/jlib; export CLASSPATH


Installation
Log into the oracle user .Set the DISPLAY environmental variable.

DISPLAY=<machine-name>:0.0; export DISPLAY
Go tothe 'database' directory and start the Oracle Universal Installer (OUI) by issuing.

./runInstaller
This will open the Interface which is self explanatory and will require you to complete the following steps : 
Post Installation
Edit the"/etc/oratab" file to set the restart flag for eachinstance to 'Y'.

<Instance name>:/u01/app/oracle/product/11.2.0/db_1:Y
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