Simple Installation of Oracle RAC 11gR2 on OEL 6

7/22/2019 Simple Installation of Oracle RAC 11gR2 on OEL 6

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Step by Step Install of Oracle RAC 11gR2 on OEL 6.5 on Oracle VM Virtual BOX

Here I am listing out the steps to install 11gR2 RAC on OS OEL6.5 on Oracle VM Virtual BOX.

Step1:

Create new Virtual BOX VM. Click on new and provide Name as rac1 type as Linux and version as Oracle 64bit. Click Next

Step2:Set Base Memory to 3072 MB, then click the "Next" button


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Step3:Accept the default option to create a new virtual hard disk by clicking the "Create" button

Step:4 Select the default VMDK type and click the "Next" button on the Create Virtual Hard Drive screen

Step5: Select Dynamically Allocated and select option split into files of less than 2gb Click next


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Step6: Provide the location where you want to save the VM files. In my case I have provided path as below. Also increase the

size of your vm from default to say 50GB and Click Create


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Once we click on Create we get rac1 vm created as highlighted below:

Step7:Click on General->Advanced and change shared clipboardto Bidirectional and Change Drag nDrop to Bidirectional

and click Ok


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Step8: Click on Network

Add three Adaptors.

a. Make sure "Adapter 1" is enabled, attached to "Internal Network" or "Host-only Adapter". This interface will be

used for public network, for example, for connection to the RAC datbase from other applications. More about

networking will be explained later. On the screenshot below "Internal Network" is selected and name "pubnet"

was given to this network

b.Then click on the "Adapter 2" tab. Make sure "Adapter 2" is enabled and attach to "Internal Network". Name this

network "privnet":


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Then finally click on the "Adapter 3", enable it, and attach to "Bridged Adapter" or "NAT". This adapter will be used for

nternet. Then press "OK" button

Step:9 Click on storage

Step10:Select OEl6.5 ISO and click ok

Step11 Click on Shared Folder


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Now we can see shared folders with 1 value. It Means we are sharing a folder/drive from Host machine to Guest.


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Step12: Click on Start as shown below

Step13. After starting we get below screen and select Install or Upgrade an Existing System.

Step14: Select skip


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Step15:Scroll Down and click NEXT

Step16: Click Next


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Step17:Click Next

Step18: Select basic Storage and click Next

Step19: Select Discard any Data


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Step20: Change the hostname as below(not mandatory that it should be same as below

Scroll down and click on Configure Network

Step20:Select System eth0 and click on edit


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Step21: Select Connect Automatically and select IPV4 Setting

Step22: Make sure that "Connect automatically" is checked. Select "IPv4 Settings" tab; change Method to "Manual";

Press "Add" and fill Address: 192.168.56.71; Netmask: 255.255.255.0; Gateway: 0.0.0.0. Press "Apply" then done:


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Step23: Now select System eth1 and click on edit

Step24: In the Network Connections screen select "System eth1" interface, this will be used for private network, then

press "Edit". Then check the box "Connect automatically". Select "IPv4 Settings" tab; change Method to "Manual". Press

Add" and fill Address: 192.168.10.1; Netmask: 255.255.255.0; Gateway: 0.0.0.0. When done, press "Apply":


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Step25: Finally select "System eth2" interface, this will be used for Internet, then press "Edit". Check the box "Connect

automatically". Select "IPv4 Settings" tab make sure the Method is set to "Automatic (DHCP)".Press "Apply" button:


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Step26: Click Next

Step27:Give password for root


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Step28:

Step29:Click next


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Step30:Select on Format

Step31:Select Write Changes to disk

Step32:Click Next


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Step33: Select Database Server option and select Customize now and Click Next

Step34:Select Tiger VNC (Not Manadatory). I sometimes prefer using vnc


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Step35:Select options as below for Desktop and Click Next


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NOW Sit and Relax.


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We are done with the installation of OEL 6.5: Click Reboot.

36:After Reboot: Click on Forward

37:Licence Info: Click Forward


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Step38:Click Forward

Click39:


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Step42:Click Finish

Step43:Login into the Server using root


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First of all check whether we can connect to the internet or not

will use putty to connect to Guest Linux.

Change the /etc/hosts entries as below

# Public

192.168.56.71 rac1.localdomain rac1192.168.56.72 rac2.localdomain rac2

# Private

192.168.10.1 rac1-priv.localdomain rac1-priv

192.168.10.2 rac2-priv.localdomain rac2-priv

# Virtual

192.168.56.81 rac1-vip.localdomain rac1-vip


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192.168.56.82 rac2-vip.localdomain rac2-vip

# SCAN

192.168.56.91 rac-scan.localdomain rac-scan



Step44: Install Virtual BOX Software

Step45:Click OK


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Step47:Click on RUN

Ste48: It is failed


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HERE>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>.

Step50: Follow my previous post

http://oracleappsdbar12.wordpress.com/2013/11/10/virtualbox-error-tmpvbox-0makefile-include-header97-error-unable-

o-find-the-sources-of-your-current-linux-kernel-specify-kern_dir/

To overcome this error update gcc using

1.yum update gcc

2. yum update

3. yum install kernel-uek-devel
http://oracleappsdbar12.wordpress.com/2013/11/10/virtualbox-error-tmpvbox-0makefile-include-header97-error-unable-to-find-the-sources-of-your-current-linux-kernel-specify-kern_dir/http://oracleappsdbar12.wordpress.com/2013/11/10/virtualbox-error-tmpvbox-0makefile-include-header97-error-unable-to-find-the-sources-of-your-current-linux-kernel-specify-kern_dir/http://oracleappsdbar12.wordpress.com/2013/11/10/virtualbox-error-tmpvbox-0makefile-include-header97-error-unable-to-find-the-sources-of-your-current-linux-kernel-specify-kern_dir/http://oracleappsdbar12.wordpress.com/2013/11/10/virtualbox-error-tmpvbox-0makefile-include-header97-error-unable-to-find-the-sources-of-your-current-linux-kernel-specify-kern_dir/http://oracleappsdbar12.wordpress.com/2013/11/10/virtualbox-error-tmpvbox-0makefile-include-header97-error-unable-to-find-the-sources-of-your-current-linux-kernel-specify-kern_dir/


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Say Yes

Once this is installed Reboot the Server.

Once again try to install VM tools

Lets see what happens this time

This time it went fine now reboot the server


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Reboot.

Purpose we will be able to view the shared folders in Linux Guest.

Step51:Now we need to disable the firewall: Linux Main menu | System | Administration | Firewall. Click on "Disable"

con, then on "Apply".

Stop and Disable


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Step52: Copy the software from shared folder to tmp and change the permissions to read write execute on zip files

Step53: Install oracle-rdbms-server-11gR2-preinstall using yum


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Step54:

Select Y

nstall ASM packages as below


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groupadd -g 1000 oinstallgroupadd -g 1200 dbauseradd -u 1100 -g oinstall -G dba oraclepasswd oracle

Passwd oracle

Create Passwd for oracle user

Step54: Create the directory in which the Oracle software will be installed.

mkdir -p /u01/app/11.2.0.3/grid

mkdir -p /u01/app/oracle/product/11.2.0.3/db_1

chown -R oracle:oinstall /u01

chmod -R 775 /u01/


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Step55:Disable secure linux by editing the "/etc/selinux/config" file, making sure the SELINUX flag is set as follows.

SELINUX=disabled

Change Enforcing to disabled

Add or amend the following lines to the "/etc/sysctl.conf" file.

s.aio-max-nr = 1048576s.file-max = 6815744#kernel.shmall = 2097152#kernel.shmmax = 1054504960kernel.shmmni = 4096

# semaphores: semmsl, semmns, semopm, semmnikernel.sem = 250 32000 100 128net.ipv4.ip_local_port_range = 9000 65500net.core.rmem_default=262144net.core.rmem_max=4194304net.core.wmem_default=262144net.core.wmem_max=1048586Run the following command to change the current kernel parameters.

sbin/sysctlp


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Add the following lines to the "/etc/security/limits.conf" file.

oracle soft nproc 2047oracle hard nproc 16384oracle soft nofile 4096oracle hard nofile 65536oracle soft stack 10240

# service iptables stop# chkconfig iptables off

Step57:Either configure NTP, or make sure it is not configured so the Oracle Cluster Time Synchronization Service (ctssd)can synchronize the times of the RAC nodes. If you want to deconfigure NTP do the following.

# service ntpd stopShutting down ntpd: [ OK ]# chkconfig ntpd off# mv /etc/ntp.conf /etc/ntp.conf.orig# rm /var/run/ntpd.pid

f you want to use NTP, you must add the "-x" option into the following line in the "/etc/sysconfig/ntpd" file.

OPTIONS="-x -u ntp:ntp -p /var/run/ntpd.pid"

Then restart NTP.

# service ntpd restart


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Now we will shut down the server as we need to add asm disks. Before we add asm disks. We will backup our vm

Backup VM.

Click File export Appliance

Select our VM and click next


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Save to some location

Click next and click export


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Ok We done with the backup now add disks for ASM storage.

TO add disks click on storage


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Add ASMDISK3 as well

Now Restore the Backup that was taken earlier and change it as Rac2


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Change the name as Rac2

Scroll down


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Click Import

After import we got RAC2 VM

Change the disks to shared that were created earlier for ASM


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Do the same for all theASMDISKs

Now once this is done click on RAC2 Vm and Storage


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Do the same for other two disks

Start the RAC2 VM

f we see here it is still rac1. Hostname has to be changed


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Change the domain

Change the IP addresses


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Reboot

f there is any problem then restart network services


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Service network restart

Now check whether you are able to ping the hosts as below from rac1

Now repeat for rac2 as well.


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nstall Oracleasmlib. I have downloaded file from

http://www.oracle.com/technetwork/server-storage/linux/asmlib/ol6-1709075.html
http://www.oracle.com/technetwork/server-storage/linux/asmlib/ol6-1709075.htmlhttp://www.oracle.com/technetwork/server-storage/linux/asmlib/ol6-1709075.htmlhttp://www.oracle.com/technetwork/server-storage/linux/asmlib/ol6-1709075.html


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Do the same with other storage devices i.e for /dev/sdc and /dev/sdd

Configure OracleASM

Configure ASMLib using the following command.

# oracleasm configure -i


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Do the same on rac2 as well

/usr/sbin/oracleasm init

On RAC2


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Click on SSH Connectivity..

Give the password for grid and click next


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Okay we see some issues with RPMs

Lets install one after the other using yum


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Now we have 3 issues

1. Asm

2. Ntp issue--ignore

3. Resolve.conf---ignore


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1.ASM

Here the issue is with group. Installation is looking for oinstall group for disks.

Lets check the group on the server

Repeat the same on RAC2 server as well


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Now Issue with ASM is resolved now we will move on to second issue

2.NTP

f you want to use NTP, you must add the "-x" option into the following line in the /etc/sysconfig/ntpd file.

OPTIONS="-x -u ntp:ntp -p /var/run/ntpd.pid"


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Start running orainstRoot.sh on rac1 first

On RAC2

Root.sh on RAC1


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On RAC2 Now:


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SCAN Issue can be resolved using below

root@rac1]# mv /usr/bin/nslookup /usr/bin/nslookup.original

Next, create a new shell script named /usr/bin/nslookup as shown below while

eplacing 24.154.1.34 with your primary DNS, rac-scan with your

SCAN host name, and 192.168.56.91 with your SCAN IP address:

#!/bin/bash

HOSTNAME=${1}

f [[ $HOSTNAME = "racnode-cluster-scan" ]]; then

echo "Server: 24.154.1.34"

echo "Address: 24.154.1.34#53"

echo "Non-authoritative answer:"

echo "Name: racn-scan"

echo "Address: 192.168.56.91 "

else

/usr/bin/nslookup.original $HOSTNAME

Fi

Finally, change the new nslookup shell script to executable:root@rac1 ~]# chmod 755 /usr/bin/nslookup

Remember to perform these actions on both Oracle RAC nodes.

The new nslookup shell script simply echo's back your SCAN IP address whenever the CVU calls nslookup with your SCAN

host name; otherwise, it calls the original nslookup binary. The CVU will now pass during the Oracle grid infrastructure

nstallation when it attempts

o verify your SCAN:


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Checkagain will not work so need to run runInstaller again.


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Documents

Simple Installation of Oracle RAC 11gR2 on OEL 6