Overview

This document describes how to configure OCFS2 (Oracle Cluster File System Version 2) based on CentOS7 2Node.

Method

1. Install packages (common to both nodes)

yum install -y ocfs2-tools ocfs2-tools-devel

2. Set up cluster layout (in order on each node)

[Node 1]
o2cb add-cluster tbdata
o2cb list-cluster tbdata

o2cb add-node --ip 192.168.0.168 --port 7777 --number 1 tbdata tac1
o2cb add-node --ip 192.168.0.169 --port 7777 --number 2 tbdata tac2
cat /etc/ocfs2/cluster.conf

[Node 2]
mkdir /etc/ocfs2
vi /etc/ocfs2/cluster.conf
Enter the cluster.conf content from Node 1

3. Activate O2CB cluster stack (on both nodes)

[Node 1/Node 2]
/sbin/o2cb.init configure
y
enter
tbdata
enter
enter
enter
enter

systemctl start o2cb
systemctl enable o2cb
systemctl status o2cb

systemctl start ocfs2
systemctl enable ocfs2
systemctl status ocfs2



vi /etc/sysctl.d/99-sysctl.conf
kernel.panic = 30
kernel.panic_on_oops = 1

sysctl -p

4. Create OCFS2 filesystem (only once on a single node)

[Node 1]
mkfs.ocfs2 -L "tbdata" /dev/sdb

5. Mount (on both nodes)

[Node 1/Node 2]
mkdir /tbdata

mount /dev/sdb1 /tbdata

sudo mount -L tbdata /tbdata

chown -R tibero:dba /tbdata
chmod -R 750 /tbdata

vi /etc/fstab
/dev/sdb1               /tbdata                ocfs2     _netdev,defaults  0 0