Step by Step How to Create Oracle RAC Database

Creating Oracle RAC Database Post Oracle Clusterware Installation

Once you are done with Oracle Grid Infrastructure Installation and Oracle Database Software Installation you are ready create your first RAC database.

STEP1: Launch DBCA

$export ORACLE_HOME=/u01/app/oracle/product/12.2.0.1/db1

Execute dbca from ORACLE_HOME/bin and follow the GUI instruction as shown below

$cd /u01/app/oracle/product/12.2.0.1/db1

./dbca

choose create database and click Next

Choose advanced Configuration and click Next

Click Next

Select all the nodes on which you want to create the database and click Next

Choose appropriate (As per your requirement)Value for each field and Click Next

Choose the Appropriate Disk Group (in my case it is DATA) and click Next

You can enable the archivelog and specify the FRA (Flash Recovery Area) Location and Size. In this example I kept the archiving disabled. If left disabled you can enable it later

Choose appropriate Memory Options and define the required characterset from Character Set Tab and click Next

if you do not want to configure EM Express then untick it and click Next

Enter the Password and click Next

Click Next

Click finish to create the database

STEP2: Verify the Installation log

Post successful database creation validate the log files under $ORACLE_BASE/ cfgtoollogs/dbca/ (in my case /u01/app/oracle/cfgtoollogs/dbca/orcl) and ensure there is no error.

STEP3: Check the availability of the database

$ srvctl status database -d orcl

Instance orcl1 is running on node node1

Instance orcl2 is running on node node2

STEP4: check the configuration of the database

[oracle@node1 orcl]$ srvctl config database -d orcl

Database unique name: orcl

Database name: orcl

Oracle home: /u01/app/oracle/product/12.2.0.1/db1

Oracle user: oracle

Spfile: +DATA/ORCL/PARAMETERFILE/spfile.272.947351843

Password file: +DATA/ORCL/PASSWORD/pwdorcl.256.947351319

Domain: oracle.com

Start options: open

Stop options: immediate

Database role: PRIMARY

Management policy: AUTOMATIC

Server pools:

Disk Groups: DATA

Mount point paths:

Services:

Type: RAC

Start concurrency:

Stop concurrency:

OSDBA group: dba

OSOPER group: dba

Database instances: ORCL1,ORCL2

Configured nodes: node1,node2

CSS critical: no

CPU count: 0

Memory target: 0

Maximum memory: 0

Default network number for database services:

Database is administrator managed

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