A couple of weeks ago, Oracle released the long awaited Oracle 12c database, with lots of exciting new features.
A couple of great blog posts have already been done on how to install this, but from what I have seen they rely on Oracle’s OVM technology and/or Oracle Enterprise Linux.
This blog post is a detailed step-by-step of Oracle 12cR1 RAC using VMware Workstation and CentOS 6.4.
Time Required: 20 minutes
Class Materials:
The next step is to create a new 12c database!
The dbca is still the method used to create a new database in 12c. But before we launch the installer, we will modify the /etc/oratab file.
Time Required: 60 minutes
Class Materials:
The next step is to install the Oracle 12c database software.
The database install process is largely unchanged from the 11g installer, so this should be familiar terriroty to most DBAs.
Oracle 12cR1 12.1.0.1 2-node RAC on CentOS 6.4 on VMware Workstation 9 – Part IX
Time Required: 60 minutes
Class Materials:
Now that we have completed all the preparation steps and the grid pre-install steps, we can install the 12c Oracle Grid Infrastructure software.
The Grid Infrastructure will provide the Cluster software that allows the RAC nodes to communicate, as well as the ASM software to manage the shared disks.
Time Required: 30 minutes
Class Materials:
Next we are going to perform some final steps before we can launch the Oracle Grid Infrastructure install.
The Grid Infrastructure will provide the cluster software that allows the RAC nodes to communicate, as well as the ASM software to manage the shared disks.
To begin, download the zip files from the Oracle software download website and unzip on Ruggero. Make sure you are logged in as the oracle user so that oracle owns the unzipped files.
Time Required: 60 minutes
Class Materials:
Next we are going to add shared disk for the RAC cluster to use.
In earlier releases of Oracle RAC, a mimimal RAC could be stood up on less than 5GB of ASM disk. With Oracle 12c that is no longer possible.
For this demonstration I am going to create a 20GB shared disk. If you are tight on space you just about shoe horn it into a 10GB disk.
Time Required: 60 minutes
Class Materials:
Next we are going to clone Ruggero to create the second node of our 12c RAC Magda.
Shut down the VM and go to the VMware interface.
Time Required: 20 minutes
Class Materials:
Next we need to create the Oracle user account, OS groups and mount point.
The Oracle software will be installed and owned by the oracle user account. In addition, several OS groups are created that allow other non oracle OS users privileged access to the database and grid resources.
Time Required: 60 minutes
Class Materials:
Next we are going to create two networks for our RAC system to talk on.
The Oracle RAC system requires at least two network connections between cluster nodes. One network will be the public IP and the second will be a private IP reserved for inter-cluster traffic.
VMware Workstation makes this setup very simple.
Time Required: 20 minutes
Class Materials:
Next we need to configure the Linux kernel to support Oracle 12cR1.
Before we can install Oracle 12cR1 on our new VM, we need configure the Linux kernel. The following steps modify key settings to allow Oracle to execute.
the gruffdba 