ASM Installation

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ASM Installation

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June 30, 2025

ASM Installation

ASM on vmware workstation

Prerequisites:-

Step 1:

Set up Oracle Database Server on VMware Workstation using( OEL) Linux 7.6 OS Platform?

Step 2: Connect to OEL 7.6 server via putty and install the below packages

1	`yum -y install -y oracle-database-preinstall-19c`

1	`yum -y install oracleasm*`

1	`yum -y install kmod-oracleasm*`

Add below OS groups

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3 groupadd -g 54327 asmdba groupadd -g 54328 asmoper groupadd -g 54329 asmadmin

Add asmdba as secondary group to Oracle user

1	`usermod -a -G asmdba oracle`

Create Grid User

1	`useradd -u 54331 -g oinstall -G dba,asmdba,asmoper,asmadmin,racdba grid`

Change the password for Oracle and Grid user

1	`passwd oracle`

1	`passwd grid`

Create the Directories for Oracle Database installation

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3 mkdir -p /u01/app/oracle mkdir -p /u01/app/oracle/product/19.3.0/db_home chown -R oracle:oinstall /u01/app/oracle

Create the Directories for Oracle Grid installation

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3 mkdir -p /u01/app/grid/product/19.3.0/grid_home chown -R grid:oinstall /u01/app/grid chmod -R 775 /u01

Configure Oracle ASM

Let us configure Oracle ASM

1	`oracleasm configure -i`

Load / initiate Oracle ASM

Add 30 GB HDD to virtual machine which we will use to create 3 partitions of 10 GB each for our ASM disks. Open Virtual machine >> Settings >> Storage >> Controller: SATA >> Create new disk

create 3 partitions of 10 GB each for our ASM disks

login as root user to format the disk

1	`fdisk -l`

In the above output the /dev/sdb is not yet formatted. Let’s create 3 partitions on sdb

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21 fdisk /dev/sdb n --> to create new partition +10G n +10G n w --> to save partition table

Create separate ASM Disk for each partition

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3 oracleasm createdisk CRS1 /dev/sdb1 oracleasm createdisk DATA1 /dev/sdb2 oracleasm createdisk FRA1 /dev/sdb3

To check asm disks

1	`oracleasm listdisks`

1	`ls -lrt /dev/oracleasm/disks`

Install Grid Software

Edit Grid user Bash_Profile but take .bash_profile backup before editing it

1	`su - grid`

1	`cp .bash_profile .bash_profile.orig`

1	`vi .bash_profile`

Paste below contents

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19 if [ -f ~/.bashrc ]; then . ~/.bashrc fi export ORACLE_BASE=/u01/app/grid export ORACLE_HOME=/u01/app/grid/product/19.3.0/grid_home export ORACLE_SID=+ASM export LD_LIBRARY_PATH=\$ORACLE_HOME/lib:/lib:/usr/lib export CLASSPATH=\$ORACLE_HOME/jlib:\$ORACLE_HOME/rdbms/jlib PATH=$PATH:$HOME/.local/bin:$ORACLE_HOME/bin export PATH umask 022

Save and close vi editor. Execute the bash profile and check the environment variables

1	`source .bash_profile`

1	`env\|grep ORA`

Copy the 19c grid software under grid home and unzip it

Oracle Database 19c Grid Infrastructure (19.3) for Linux x86-64

https://www.oracle.com/ae/database/technologies/oracle19c-linux-downloads.html

12	`cd` `$ORACLE_HOMEunzip LINUX.X64_193000_grid_home.zip`

1	`unzip LINUX.X64_193000_grid_home.zip`

Setup xming and Start the gridSetup.sh as a grid user which will install grid software

1	`cd /u01/app/grid/product/19.3.0/grid_home`

Follow below screens to perform the grid software installation

Change Disk group name as CRS
Select External
Click on Change Discovery Path
Give Disk Discovery Path as /dev/oracleasm/disks
Click on OK

Select /dev/oracleasm/disks/CRS1 >> Next

Select Use Same Password for these Accounts >> Specify password >> confirm password >> Next. Click on Yes

Click Next >> Next

Click Next >> Next >> Next

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6 chown -R grid:oinstall /u01 chown -R oracle:oinstall /u01/app/oracle chmod -R 775 /u01/ chown -R grid:oinstall /u01/app/oraInventory chmod -R 775 /u01/app/oraInventory

Click on fix and check again

Install the missing package

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8 [root@prim rpm]# pwd /u01/app/grid/product/19.3.0/grid_home/cv/rpm [root@prim rpm]# rpm -ivh cvuqdisk-1.0.10-1.rpm Preparing… ################################# [100%] Using default group oinstall to install package Updating / installing… 1:cvuqdisk-1.0.10-1 ################################# [100%] [root@prim rpm]#

To install package (under root user):

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3 cd /u01/app/grid/product/19.3.0/grid_home/cv/rpm rpm -ivh cvuqdisk-1.0.10-1.rpm

Configure ASM Diskgroups

The grid installer allows you to only create one diskgroup (CRS). We need to start the asmca utility in order to create DATA and FRA diskgroup which are required for database installation. Click on Create

Give Disk Group Name as DATA
Select External(None)
Select /dev/oracleasm/disks/DATA1
Click on OK

Click on Create

Give Disk Group Name as FRA
Select External(None)
Select /dev/oracleasm/disks/FRA1
Click on OK

Install Oracle Software

Login as oracle

1	`vi .bash_profile`

Edit Oracle user bash profile and put below

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21 vi .bash_profile if [ -f ~/.bashrc ]; then . ~/.bashrc fi User specific environment and startup programs User specific environment and startup programs export ORACLE_BASE=/u01/app/oracle export ORACLE_HOME=/u01/app/oracle/product/19.3.0/db_home export ORACLE_SID=prim export LD_LIBRARY_PATH=\$ORACLE_HOME/lib:/lib:/usr/lib export CLASSPATH=\$ORACLE_HOME/jlib:\$ORACLE_HOME/rdbms/jlib PATH=$PATH:$HOME/.local/bin:$ORACLE_HOME/bin export PATH