Step By Step to Install Oracle 19CR2 Nodes RAC Setup on Oracle Linux 7.6 version 64-Bit

 Step By Step to Install Oracle 19c 2 Nodes RAC Setup on Oracle Linux 7.6 version 64-Bit 


Software Requirements.



1. Download Latest Oracle VM Virtual box for your suitable host OS from https://www.virtualbox.org/wiki/Downloads



2. Download Oracle Linux 6.7 (64-bit) from Oracle edelivery site. https://www.edelivery.oracle.com

3. Download Oracle 19c GRID and RDBMS software from oracle edelivery.

System Readiness:

#################################################

 It is assumed that the required 2 Database Servers are installed 

and configured over Oracle VM Virtualbox environment using the above software. Including Network and Shared Storage Provisioning.

#################################################

Now we will see how we can configure the Oracle 19c two nodes RAC setup. 

Execute the below commands to quickly set up the system prerequisites on both servers.

sed -i 's/SELINUX=enforcing/SELINUX=disabled/g' /etc/selinux/config

systemctl stop firewalld

systemctl disable firewalld

systemctl stop chronyd.service

systemctl disable chronyd.service

mv /etc/chrony.conf /etc/chrony.conf.bak

groupadd -g 54331 oinstall

groupadd -g 54332 dba

groupadd -g 54333 oper

groupadd -g 54334 backupdba

groupadd -g 54335 dgdba

groupadd -g 54336 kmdba

groupadd -g 54337 asmdba

groupadd -g 54338 asmoper

groupadd -g 54339 asmadmin

groupadd -g 54340 racdba

useradd -m -u 54332 -g oinstall -G dba,asmadmin,asmdba,asmoper -d /home/grid -s /bin/bash  grid 

echo "grid" | passwd --stdin grid

useradd -m -u 54331 -g oinstall -G dba,oper,backupdba,dgdba,kmdba,asmdba,asmadmin,racdba -d /home/oracle -s /bin/bash  oracle 

echo "oracle" | passwd --stdin oracle

mkdir -p /u01/app/grid

mkdir -p /u01/app/19.2/grid

mkdir -p /u02/app/oracle

mkdir -p /u02/app/oracle/product/19.2

chmod -R 775 /u01

chmod -R 775 /u02

chown -R grid:oinstall /u01

chown -R oracle:oinstall /u02/app/oracle

update the bash profile file for grid, oracle and root users respectively as below.

In grid's bash profile:

export ORACLE_SID=+ASM

export ORACLE_BASE=/u01/app/grid

export ORACLE_HOME=/u01/app/19.2/grid

export PATH=$ORACLE_HOME/bin:$ORACLE_HOME/OPatch:$PATH

umask 22 

In oracle's bash profile:

export ORACLE_SID=orcl

export ORACLE_BASE=/u02/app/oracle

export ORACLE_HOME=$ORACLE_BASE/product/19.2

export PATH=$ORACLE_HOME/bin:$ORACLE_HOME/OPatch:$PATH

umask 22 

In root's bash profile:

export ORACLE_HOME=/u01/app/19.2/grid

export PATH=$ORACLE_HOME/bin:$ORACLE_HOME/OPatch:$PATH

Install the required RPMs as below:

yum install -y oracle-database-preinstall-18c.x86_64

yum install kmod-oracleasm

yum install oracleasm-support oracleasmlib oracleasm-`uname -r`

Configure oracleasm utility.

oracleasm configure -i 

Update the '/etc/hosts' file with suitable IP Addresses and Hostnames.

Make sure the public and Private networks are reachable from both nodes. 

The VIP network should not be reachable as of now. once the setup is done this virtual network will be enabled automatically.

Make sure the 3 Scan IPs are resolvable via nslookup utility; since its just a lab setup I used a single scan IP as mentioned in above '/etc/hosts' file.

#public ip

192.168.56.101  YesBolisetty01.localdomain YesBolisetty01 

192.168.56.102  YesBolisetty02.localdomain YesBolisetty02

#vip

192.168.56.103 YesBolisetty01-vip.localdomain YesBolisetty01-vip

192.168.56.104 YesBolisetty02-vip.localdomain  YesBolisetty02-vip

#private ip

192.168.57.101   YesBolisetty01-priv.localdomain YesBolisetty01-priv

192.168.57.102  YesBolisetty02-priv.localdomain YesBolisetty02-priv

#SCAN ip

192.168.56.110 YesBolisetty-cluster YesBolisetty-cluster-scan

Cluster (Grid) Software Setup:

In 19c, the Grid Clusterware setup is slightly differed with previous traditional installations. Here we have to Unzip the grid software to Grid's ORACLE_HOME directly and run the gridSetup.sh script.

as root:

cd /media/sf_Software/19c/

unzip -q V981627-01.zip -d /u01/app/19.2/grid

chown -R grid:oinstall /u01

As grid user:

cd /u01/app/19.2/grid/

./gridSetup.sh


Unlike the previous versions, you can see various types cluster setups available in 19c.  

To know more about each type cluster configuration and it's purpose,  please refer to Oracle Document grid-infrastructure-installation-and-upgrade 19c.

However, here is the generic installation so I will be choosing the default  standalone cluster.

We can see a new SCAN option called Shared, for more information refer to grid-infrastructure-installation-and-upgrade 19c.

selecting the default Local SCAN option here.

Add the 2nd node's details and setup SSH connectivity for Grid user.


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Choose suitable interfaces as below.

As usual choose ASM Storage.




I chose the Grid Infrastructure Management Repository (GIMR) to be configured as this will be useful for debugging cluster related failures.



I will be using same Disk group for OCR/VD/GIMR here, though we have the option to different disk group for GIMR.



Below are the required OCR disk group capacity depending on the Redundancy which will also holds GIMR data.

External: around 30 GB

Normal: around 60 GB

High : around 90 GB.

I selected External Redundancy


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remaing screens are attached in the bottom o this article.




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We have the option to provide the root or equivalent sudo credentials in the below step. However I would like to see what exactly it does during the root scripts execution, the credentials are not passed.





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Run the 'Fix and Check Again' and also resolve the relevant warnings/Failed checks.





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Once make sure we are good to proceed.





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You can observe the changes in root.sh output as compared to previous installations. 


1st Node:


[root@sspdb01 rpm]# /u01/app/oraInventory/orainstRoot.sh

Changing permissions of /u01/app/oraInventory.

Adding read,write permissions for group.

Removing read,write,execute permissions for world.


Changing groupname of /u01/app/oraInventory to oinstall.

The execution of the script is complete.

[root@sspdb01 rpm]# /u01/app/19.2/grid/root.sh

Performing root user operation.


The following environment variables are set as:

    ORACLE_OWNER= grid

    ORACLE_HOME=  /u01/app/19.2/grid


Enter the full pathname of the local bin directory: [/usr/local/bin]: 

   Copying dbhome to /usr/local/bin ...

   Copying oraenv to /usr/local/bin ...

   Copying coraenv to /usr/local/bin ...



Creating /etc/oratab file...

Entries will be added to the /etc/oratab file as needed by

Database Configuration Assistant when a database is created

Finished running generic part of root script.

Now product-specific root actions will be performed.

Relinking oracle with rac_on option

Using configuration parameter file: /u01/app/19.2/grid/crs/install/crsconfig_params

The log of current session can be found at:

  /u01/app/grid/crsdata/sspdb01/crsconfig/rootcrs_sspdb01_2019-02-23_00-25-26AM.log

2019/02/23 00:26:07 CLSRSC-594: Executing installation step 1 of 19: 'SetupTFA'.

2019/02/23 00:26:08 CLSRSC-594: Executing installation step 2 of 19: 'ValidateEnv'.

2019/02/23 00:26:08 CLSRSC-363: User ignored prerequisites during installation

2019/02/23 00:26:08 CLSRSC-594: Executing installation step 3 of 19: 'CheckFirstNode'.

2019/02/23 00:26:17 CLSRSC-594: Executing installation step 4 of 19: 'GenSiteGUIDs'.

2019/02/23 00:26:20 CLSRSC-594: Executing installation step 5 of 19: 'SetupOSD'.

2019/02/23 00:26:20 CLSRSC-594: Executing installation step 6 of 19: 'CheckCRSConfig'.

2019/02/23 00:26:23 CLSRSC-594: Executing installation step 7 of 19: 'SetupLocalGPNP'.

2019/02/23 00:29:25 CLSRSC-594: Executing installation step 8 of 19: 'CreateRootCert'.

2019/02/23 00:30:00 CLSRSC-4002: Successfully installed Oracle Trace File Analyzer (TFA) Collector.

2019/02/23 00:30:01 CLSRSC-594: Executing installation step 9 of 19: 'ConfigOLR'.

2019/02/23 00:30:39 CLSRSC-594: Executing installation step 10 of 19: 'ConfigCHMOS'.

2019/02/23 00:30:40 CLSRSC-594: Executing installation step 11 of 19: 'CreateOHASD'.

2019/02/23 00:31:06 CLSRSC-594: Executing installation step 12 of 19: 'ConfigOHASD'.

2019/02/23 00:31:07 CLSRSC-330: Adding Clusterware entries to file 'oracle-ohasd.service'

2019/02/23 00:32:06 CLSRSC-594: Executing installation step 13 of 19: 'InstallAFD'.

2019/02/23 00:32:32 CLSRSC-594: Executing installation step 14 of 19: 'InstallACFS'.

2019/02/23 00:32:53 CLSRSC-594: Executing installation step 15 of 19: 'InstallKA'.

2019/02/23 00:33:11 CLSRSC-594: Executing installation step 16 of 19: 'InitConfig'.


ASM has been created and started successfully.


[DBT-30001] Disk groups created successfully. Check /u01/app/grid/cfgtoollogs/asmca/asmca-190223AM123423.log for details.


2019/02/23 00:36:42 CLSRSC-482: Running command: '/u01/app/19.2/grid/bin/ocrconfig -upgrade grid oinstall'

CRS-4256: Updating the profile

Successful addition of voting disk bec6dfe80d344f21bf747466dd2342aa.

Successfully replaced voting disk group with +OCR.

CRS-4256: Updating the profile

CRS-4266: Voting file(s) successfully replaced

##  STATE    File Universal Id                File Name Disk group

--  -----    -----------------                --------- ---------

 1. ONLINE   bec6dfe80d344f21bf747466dd2342aa (/dev/oracleasm/disks/OCR05) [OCR]

Located 1 voting disk(s).

2019/02/23 00:42:07 CLSRSC-594: Executing installation step 17 of 19: 'StartCluster'.

2019/02/23 00:44:59 CLSRSC-343: Successfully started Oracle Clusterware stack

2019/02/23 00:44:59 CLSRSC-594: Executing installation step 18 of 19: 'ConfigNode'.

2019/02/23 00:53:03 CLSRSC-594: Executing installation step 19 of 19: 'PostConfig'.

2019/02/23 01:00:02 CLSRSC-325: Configure Oracle Grid Infrastructure for a Cluster ... succeeded


2nd Node:


[root@sspdb02 ~]# /u01/app/19.2/grid/root.sh

Performing root user operation.


The following environment variables are set as:

    ORACLE_OWNER= grid

    ORACLE_HOME=  /u01/app/19.2/grid


Enter the full pathname of the local bin directory: [/usr/local/bin]: 

   Copying dbhome to /usr/local/bin ...

   Copying oraenv to /usr/local/bin ...

   Copying coraenv to /usr/local/bin ...



Creating /etc/oratab file...

Entries will be added to the /etc/oratab file as needed by

Database Configuration Assistant when a database is created

Finished running generic part of root script.

Now product-specific root actions will be performed.

Relinking oracle with rac_on option

Using configuration parameter file: /u01/app/19.2/grid/crs/install/crsconfig_params

The log of current session can be found at:

  /u01/app/grid/crsdata/sspdb02/crsconfig/rootcrs_sspdb02_2019-02-23_01-04-55AM.log

2019/02/23 01:05:38 CLSRSC-594: Executing installation step 1 of 19: 'SetupTFA'.

2019/02/23 01:05:39 CLSRSC-594: Executing installation step 2 of 19: 'ValidateEnv'.

2019/02/23 01:05:39 CLSRSC-363: User ignored prerequisites during installation

2019/02/23 01:05:39 CLSRSC-594: Executing installation step 3 of 19: 'CheckFirstNode'.

2019/02/23 01:05:45 CLSRSC-594: Executing installation step 4 of 19: 'GenSiteGUIDs'.

2019/02/23 01:05:45 CLSRSC-594: Executing installation step 5 of 19: 'SetupOSD'.

2019/02/23 01:05:45 CLSRSC-594: Executing installation step 6 of 19: 'CheckCRSConfig'.

2019/02/23 01:05:50 CLSRSC-594: Executing installation step 7 of 19: 'SetupLocalGPNP'.

2019/02/23 01:05:55 CLSRSC-594: Executing installation step 8 of 19: 'CreateRootCert'.

2019/02/23 01:05:55 CLSRSC-594: Executing installation step 9 of 19: 'ConfigOLR'.

2019/02/23 01:06:10 CLSRSC-594: Executing installation step 10 of 19: 'ConfigCHMOS'.

2019/02/23 01:06:11 CLSRSC-594: Executing installation step 11 of 19: 'CreateOHASD'.

2019/02/23 01:06:17 CLSRSC-594: Executing installation step 12 of 19: 'ConfigOHASD'.

2019/02/23 01:06:18 CLSRSC-330: Adding Clusterware entries to file 'oracle-ohasd.service'

2019/02/23 01:07:47 CLSRSC-594: Executing installation step 13 of 19: 'InstallAFD'.

2019/02/23 01:08:12 CLSRSC-594: Executing installation step 14 of 19: 'InstallACFS'.

2019/02/23 01:08:40 CLSRSC-594: Executing installation step 15 of 19: 'InstallKA'.

2019/02/23 01:08:58 CLSRSC-594: Executing installation step 16 of 19: 'InitConfig'.

2019/02/23 01:09:13 CLSRSC-4002: Successfully installed Oracle Trace File Analyzer (TFA) Collector.

2019/02/23 01:09:53 CLSRSC-594: Executing installation step 17 of 19: 'StartCluster'.

2019/02/23 01:11:46 CLSRSC-343: Successfully started Oracle Clusterware stack

2019/02/23 01:11:47 CLSRSC-594: Executing installation step 18 of 19: 'ConfigNode'.

2019/02/23 01:14:42 CLSRSC-594: Executing installation step 19 of 19: 'PostConfig'.

2019/02/23 01:15:35 CLSRSC-325: Configure Oracle Grid Infrastructure for a Cluster ... succeeded


Post of Cluster Setup:


[root@sspdb02 bin]# ./crsctl check cluster -all

**************************************************************

sspdb01:

CRS-4537: Cluster Ready Services is online

CRS-4529: Cluster Synchronization Services is online

CRS-4533: Event Manager is online

**************************************************************

sspdb02:

CRS-4537: Cluster Ready Services is online

CRS-4529: Cluster Synchronization Services is online

CRS-4533: Event Manager is online

**************************************************************


[root@sspdb02 bin]# ./crsctl stat res -t

--------------------------------------------------------------------------------

Name           Target  State        Server                   State details       

--------------------------------------------------------------------------------

Local Resources

--------------------------------------------------------------------------------

ora.LISTENER.lsnr

               ONLINE  ONLINE       sspdb01                  STABLE

               ONLINE  ONLINE       sspdb02                  STABLE

ora.chad

               ONLINE  ONLINE       sspdb01                  STABLE

               ONLINE  ONLINE       sspdb02                  STABLE

ora.net1.network

               ONLINE  ONLINE       sspdb01                  STABLE

               ONLINE  ONLINE       sspdb02                  STABLE

ora.ons

               ONLINE  ONLINE       sspdb01                  STABLE

               ONLINE  ONLINE       sspdb02                  STABLE

--------------------------------------------------------------------------------

Cluster Resources

--------------------------------------------------------------------------------

ora.ASMNET1LSNR_ASM.lsnr(ora.asmgroup)

      1        ONLINE  ONLINE       sspdb01                  STABLE

      2        ONLINE  ONLINE       sspdb02                  STABLE

      3        ONLINE  OFFLINE                               STABLE

ora.LISTENER_SCAN1.lsnr

      1        ONLINE  ONLINE       sspdb02                  STABLE

ora.MGMTLSNR

      1        OFFLINE OFFLINE                               STABLE

ora.OCR.dg(ora.asmgroup)

      1        ONLINE  ONLINE       sspdb01                  STABLE

      2        ONLINE  ONLINE       sspdb02                  STABLE

      3        OFFLINE OFFLINE                               STABLE

ora.asm(ora.asmgroup)

      1        ONLINE  ONLINE       sspdb01                  Started,STABLE

      2        ONLINE  ONLINE       sspdb02                  Started,STABLE

      3        OFFLINE OFFLINE                               STABLE

ora.asmnet1.asmnetwork(ora.asmgroup)

      1        ONLINE  ONLINE       sspdb01                  STABLE

      2        ONLINE  ONLINE       sspdb02                  STABLE

      3        OFFLINE OFFLINE                               STABLE

ora.cvu

      1        ONLINE  ONLINE       sspdb02                  STABLE

ora.mgmtdb

      1        OFFLINE OFFLINE                               STABLE

ora.qosmserver

      1        ONLINE  ONLINE       sspdb02                  STABLE

ora.scan1.vip

      1        ONLINE  ONLINE       sspdb02                  STABLE

ora.sspdb01.vip

      1        ONLINE  ONLINE       sspdb01                  STABLE

ora.sspdb02.vip

      1        ONLINE  ONLINE       sspdb02                  STABLE

--------------------------------------------------------------------------------


The above mentioned OFFLINE services are needed to be exclusively added to make it ONLINE, Refer to grid-infrastructure-installation-and-upgrade 19c.


At this point, the GRID Setup is successfully completed. 


Oracle Software installation:


Unzip the Oracle database software to oracle's ORACLE_HOME directly and run the runInstaller.sh script.


as root:

cd /media/sf_Software/19c/

unzip -q V981623-01.zip -d /u02/app/oracle/product/19.2

chown -R oracle:oinstall /u02


As oracle user:

cd /u02/app/oracle/product/19.2


start the installation now.


./runInstaller.sh




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Make sure all the Clusterware Nodes are selected and also setup the SSH connectivity for 'oracle' user as below.





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Choose the relevant groups, I have selected the default ones.






I will run the root scripts exclusively hence leaving the below one unchecked.





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Run the root.sh script on both nodes.




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The database software installation is successfully completed.


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