Rajkumar Yadav | “Developer ke bharose na baithiye, kya ...
CONTENTS:NotePrerequisitesOperating system requirementsHardware requirementsSoftware requirementsEnvironmentInstallation procedureCreating a database using DBCANOTE:This document describes the requirements for installation of Oracle Database 12c Release 1 64 bit on red hat enterprise Linux 6 or Oracle Enterprise Linux 6 and the installation procedure.PREREQUISITES:(i) Operating system requirements:The machine should be running red hat?enterprise?linux 6 or oracle enterprise linux 6. To check which version of software your machine is running execute,$ cat /etc/redhat-release(ii) Hardware requirements:a) CPU with 64-bit architecture. Command to display the processor type is,$ uname -mVerify that the processor architecture matches the Oracle software release to install. If you do not see the expected output then you cannot install the software on this system.b) At least 1.0 GB of physical RAM Oracle recommends 2GB for better performance. The Command to check to check amount of RAM installed on the machine is,$ free -m (or) $ grep MemTotal /proc/meminfoc) Swap size should be proportional to RAM size as follows,RAM(GB)SWAP1-21.5 times RAM size2-16Equal to RAM sizeMore than 1616 GBd)?1.0 GB of minimum free space in /tmp directory and maximum of 2TB free space. To check the amount of frees pace in /tmp,df -Th /tmpe)?More than 4.7GB free space if you are going to install enterprise edition or more 4.6GB free space on the mount point if you are going to install standard edition of the?RDBMS software.(iii) Software requirements:a)?The servers must be running kernel versions Oracle Linux 6 with the Unbreakable Enterprise kernel: 2.6.39-? 200.24.1.el6uek.x86_64 or later, Red Hat Enterprise Linux 6: 2.6.32-71.el6.x86_64 or later.?To check the version of the kernel, execute$ uname -r (or) $cat /proc/version (or) $ uname -a? ? ?b)?Check for following 64 bit RPMs. To check if any RPM is installed, use the following command$ rpm –aq | grep <RPMname> (or) $ rpm -q <RPMname>binutils-2.20.51.0.2-5.11.el6 (x86_64)glibc-2.12-1.7.el6 (x86_64)libgcc-4.4.4-13.el6 (x86_64)libstdc++-4.4.4-13.el6 (x86_64)libaio-0.3.107-10.el6 (x86_64)libXext-1.1 (x86_64)libXtst-1.0.99.2 (x86_64)libX11-1.3 (x86_64)ibXau-1.0.5 (x86_64)libxcb-1.5 (x86_64)libXi-1.3 (x86_64)make-3.81-19.el6sysstat-9.0.4-11.el6 (x86_64)c)?Install other required RPMs listed below. To install an RPM,$ rpm -ivh <RPMname>compat-libcap1-1.10-1 (x86_64)compat-libstdc++-33-3.2.3-69.el6 (x86_64)gcc-4.4.4-13.el6 (x86_64)(i686)libaio-devel-0.3.107-10.el6 (x86_64)gcc-c++-4.4.4-13.el6 (x86_64)glibc-devel-2.12-1.7.el6 (x86_64)ksh? <== any version of ksh is acceptablelibstdc++-devel-4.4.4-13.el6 (x86_64)libaio-devel-0.3.107-10.el6 (x86_64)d)?If you want to install the 12.1 32-bit Client software, you should also install these packagescompat-libstdc++-33-3.2.3-69.el6 (i686)glibc-2.12-1.7.el6 (i686)glibc-devel-2.12-1.7.el6 (i686)libgcc-4.4.4-13.el6 (i686)libstdc++-4.4.4-13.el6 (i686)libstdc++-devel-4.4.4-13.el6 (i686)libaio-0.3.107-10.el6 (i686)libaio-devel-0.3.107-10.el6 (i686)libXext-1.1 (i686)libXtst-1.0.99.2 (i686)libX11-1.3 (i686)libXau-1.0.5 (i686)libxcb-1.5 (i686)(iv) Environment:a)?Modify your kernel settings in?“/etc/syscconf”?as follows. If the current value for any parameter is higher than the value listed in this table, do not change the value of that parameter.kernel.shmall = physical RAM sizekernel.shmmax=1/2 of physical RAM.kernel.shmmni = 4096kernel.sem = 250 32000 100 128fs.file-max = 6815744fs.aio-max-nr = 1048576net.ipv4.ip_local_port_range = 9000 65500net.core.rmem_default = 262144net.core.rmem_max = 4194304net.core.wmem_default = 262144net.core.wmem_max = 1048576As root user, execute?“sysctl -p”?to activate these new parameters.?b)?Add the following settings to?“/etc/security/limit.conf”?where oracle is the username.?This will limit the shell for the user performing RDBMS installation.oracle soft nproc 2047oracle hard nproc16384oracle soft nofile 1024oracle hard nofile 65536oracle soft stack 10240oracle hard stack? 10240INSTALLATION PROCEDURE:(i) Download Oracle 12c R1 RDBMS 64-bit software for linux from?(ii) Unzip the downloaded files(iii) The?“/etc/hosts”?file must contain a fully qualified name for the server.?Add the ip address and full hostname to /etc/hosts file in the following format<IP-address> <fully-qualified-machine-name> <machine-name>(iv) Create the new groups and users using following commands as root user.# groupadd oinstall# groupadd dba# useradd -g oinstall -G dba,oper,asmadminoracle# passwd oracleTo check whether the group is created, use the following command and check the entry after?“inst_group”$ grep dba /etc/group (or) $ more /etc/oraInst.locTo determine whether the oracle user exists and belongs to the correct groups, enter the following command. If the oracle user exists, then this command displays information about the groups to which the user belongs.$ id oracleIf the oracle user exists, but its primary group is not oinstall or it is not a member of the dba group then enter the following command# usermod -g oinstall -G dba oracle(v) Create required directories and change permissions using the following commands# mkdir -p /u01/app/oracle/product/12.1.0.2# chown -R oracle:dba /u01# chmod -R 775 /u01(vi) Now login as oracle user and start the Oracle universal installer (OUI) by using the following command in the database directory.$ ./runInstallerProceed with the installation and the installation steps you encounter during installation are listed below.Configure Security Updates. Provide your oracle support email and password to receive updates on security threats.Choose “Install database software only” to install the RDBMS software and click next.??Choose whether you want to install single instance database software or multiple instance (RAC) database software.Select the languages in which you want the RDBMS software to run and click next.Select the database edition you want to install and click nextGive path for oracle base and software installation location and click next.Specify a directory for the location of installation metafiles called “inventory directory” and click next.Select the database administrator and database operator groups and click nextOUI performs pre-installation check before installation. If any packages required by the installer install those packages before proceeding with the installation. The following screen will be displayed if there are no additional package or services requirement. Click on “Finish” at the bottom to proceed with the installation.Now, the installation process will start and progress is represented on the bar as shownAt the end of the installation process you will be provided with scripts. Run the script as root user and click ok to proceed.Installation process is now complete. Click on “close” at the bottom of the screen to exit the OUI.This completes the installation of?12cR1 (12.1.0.2)?RDBMS.Creating a database using DBCA:Select?create database?option from menu. As the picture below displays, DBCA can also be used to configure database options, delete a database, or to manage templates.??From this menu, select?advanced mode?and click?next.??Select the database template from the menu depending on your requirement and click on?next?to continue.??You will be presented with a screen as be Enter the global database name and SID on their respective fields and click?next.??Check the box against?“Configure? Enterprise Manager (EM) Database Express”?if you want to configure enterprise manager and create a listener first using?NETCA?before proceeding with enterprise manager configuration.??Setup?“SYS”?and?“SYSTEM”?accounts by giving same or different passwords and click?next. For security reasons, specifying different administrative passwords is advised.??In the Listener section, if you want to create a listener you can you do that by checking the box before?“Create New Listener”?and giving required details. Otherwise, leave the box unchecked and click?next?to continue.??Specify a storage type as?“File System”, or?“ASM”?if you want to use automatic storage management. And choose a common storage location for saving datafiles or you can also use?“Oracle Managed Files”?(OMF) for saving your datafiles, controlfiles and onlinelogs. In this section, you can also enable fast recovery area by specifying fast recovery area location and the size. Or you can enable archiving by checking the box against?“Enable Archiving”. After having chosen your preferred options, click next.??You can configure database vault here?or to skip to next step,?click?next.??In the memory tab, give the value for?“MemorySize”?as per your requirement. You can choose either typical or custom for allocating memory sizes.??In the?“Character Sets”?tab, choose database character set of your choice from the drop down menu.??Switch to?“Connection Mode”?tab and select either dedicated server mode or shared server mode for your database and click?next??A confirmation dialog is shown as be Make sure the check box against create database is ticked and click?“Next”.??A summary page is shown listing all the parameters specified, database name, SID, names and locations of controlfiles, datafiles and redo log files and any custom scripts you specified to run after database creation. If you wish to make any changes, click cancel. Otherwise click?“Finish”?to start the database creation process.??Database creation starts now and progress will be shown on the status bar as shown below on the status bar.??After successful creation of database a dialog will be shown as below. Click?exit?to close DBCA.To connect to the instance, set the environment variable?ORACLE_SID?with SID name, as shown be Then connect to?sqlplus?to connect to the instance.$ export ORACLE_SID=db2Then connect to SQL*PLUS?to connect to the instance. ................
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