Monat: Juli 2023

In this concise blog post, we present a comprehensive Oracle Installation guide for VMWARE users, focusing on the seamless setup of Oracle Linux 8 (OL8) with Oracle Database 19c.

The journey begins with VMWARE ESXi, where we will lay the foundation for creating a robust Oracle environment. With our step-by-step instructions, you’ll find the process smooth and straightforward, allowing you to get your database up and running efficiently.

Stay tuned as we walk you through the entire installation process, unraveling the complexities and highlighting the essential elements to ensure a successful setup. Your Oracle Dataguard 19c implementation on OL8 in VMWARE will soon be a reality with our expert guidance.

Whether you’re a seasoned Oracle administrator or a newcomer to the world of databases, this blog post will provide valuable insights and help you harness the power of Oracle Dataguard for your VMWARE-based Oracle environment. Let’s embark on this journey together and unlock the potential of your data infrastructure!

• CREATE AN VM

• Install Linux

Upon selecting the OL 8 ISO image on the CD/DVD drive, we are now at the VM’s start screen.

The main setting at this point is Language Support.

The next step is Software Selection.

The next step is Installation Destination:

After this Process – change root PWD and start the Installationprocess.

After a while open putty and make ssh connection to the new created vm server:

• Install Sphinx Environment Scripts for Linux + Oracle

Now, log in as root and follow these steps:

a) vi /etc/hosts 
add or change
10.xx.x.xxx tom.demo.internal.sphinx.at tom
b) vi /etc/hostname - check or rename host
c) vi /etc/sysconfig/network-scripts/i* - check or change ip

Let’s set up the volumes.

Look Logical Volumns
[root@tom]# lsblk

Create Physical Volumn and Volumn Group for sdb (Disk2)
pvcreate /dev/sdb
vgcreate app /dev/sdb

Create Logical Volumns 
lvcreate -L 16G -n app_others app 
lvcreate -L 16G -n app_oracle app
lvcreate -L 16G -n app_oracle_fra app
lvcreate -L 32G -n app_oracle_data app
lvcreate -L 16G -n app_oracle_exp app

Create XFS Filesystem
mkfs.xfs /dev/app/app_others
mkfs.xfs /dev/app/app_oracle
mkfs.xfs /dev/app/app_oracle_fra
mkfs.xfs /dev/app/app_oracle_data
mkfs.xfs /dev/app/app_oracle_exp

Create directorys
mkdir /app
mkdir /app_oracle
mkdir /app_oracle/data
mkdir /app_oracle/exp
mkdir /app_oracle/fra


And add mount points for it
mount /dev/app/app_others /app
mount /dev/app/app_oracle /app_oracle
mount /dev/app/app_oracle_data /app_oracle/data
mount /dev/app/app_oracle_exp /app_oracle/exp
mount /dev/app/app_oracle_fra /app_oracle/fra

Now it looks like this:
[root@tom /]# lsblk
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
sda 8:0 0 16G 0 disk
├─sda1 8:1 0 1G 0 part /boot
└─sda2 8:2 0 15G 0 part
├─ol-root 252:0 0 13.4G 0 lvm /
└─ol-swap 252:1 0 1.6G 0 lvm [SWAP]
sdb 8:16 0 32G 0 disk
├─app-app_oracle 252:2 0 16G 0 lvm /app_oracle
├─app-app_oracle_fra 252:3 0 4G 0 lvm /app_oracle/fra
├─app-app_oracle_data 252:4 0 5G 0 lvm /app_oracle/data
├─app-app_oracle_exp 252:5 0 756M 0 lvm /app_oracle/exp
└─app-app_others 252:6 0 6G 0 lvm /app

my host

It’s essential to add these mount points to the fstab file.

--now add via vi fstab all mount points to persists on reboot

vi /etc/fstab
/dev/mapper/app-app_others     /app             xfs     defaults        0 0
/dev/mapper/app-app_oracle     /app_oracle             xfs     defaults        0 0
/dev/mapper/app-app_oracle_data    /app_oracle/data             xfs     defaults        0 0
/dev/mapper/app-app_oracle_exp     /app_oracle/exp             xfs     defaults        0 0
/dev/mapper/app-app_oracle_fra     /app_oracle/fra             xfs     defaults        0 0

GitLab is an excellent choice for managing environment scripts.
First we need to install git:

yum install git
mkdir -p /media/software
cd /media/software
git clone https://gitlab.oursystem.at/demo/linux.git
git clone https://gitlab.oursystem.at/demo/oracle_root.git

-- install yum packages and other stuff we need in linux
cd linux
./install.sh
reboot

-- install yum packages and other stuff we need for oracle
cd ../oracle_root
./rootpre.sh -i oracle /app_oracle 19

Once the Oracle user is installed, you can proceed with a silent Oracle installation, eliminating the need for the Database Configuration Assistant (DBCA). This streamlined installation method will save time and effort, making the process more efficient.

YES

-- Get our enviromentscripts to handle Oracle easy
su - oracle

git clone https://gitlab.oursystem.at/demo/oracle_local.git local
cd local/etc
ln -s oraenv-dbs-19.EE.sh oraenv-default.sh
exit

su - oracle

We are ready to install Oracle Software 12c-23c now

THX SPHINX

su - oracle 
dbsw_install dbs 19.EE 19.EE 

mv $ORACLE_HOME/Opatch $ORACLE_HOME/Opatch_old

cd /app_oracle/local/tools
unzip p6880880_210000_Linux-x86-64.zip -d $ORACLE_HOME/

su - root

/app_oracle/product/dbs/19.EE/root.sh
/app_oracle/oraInventory/orainstRoot.sh

We are ready to install Oracle Database 12c-23c

THATS FINE

oranetinit [-f] [-L LDAP-server:port[:ssl-port] -L ...] sqlnet-domain wallet-password sys-password rman-password

Eg:
oranetinit demo.sphinx.at Sx123.45 sx123 sx123

And now DB Environment default settings:
mkoradbenv CDB 19.EE 1521

We ship some Scripts to handle the environment now for example:

chenv CDB -- change the enviroment settings
cd scripts

CAREFULLY: edit and change accordingly

init0.ora (change sqa blocksize aso...) 
changed: db_reco_file_dest to 3G

mkoracdb.par (plugdb add a name and a Pluggable DB will be created within the container and the listener will be notified to add a service_name)
changed: redosize = 100M und logmode = archivelog
mkoracdb.sql (only if required)

Create Database: using the command mkoracdb the database will be created as defined in the scripts from before.
It is advised to run this in a screen session as the process can take quite a while.

mkoracdb

Now you have to wait a little but.. until this the Database is installed

You can check the installation with

orasyscheck

Be happy (c) Sphinx