Building RHEL7 Cluster Part-I

Hello Folks, It has been long time, I could not create any post about the clustering with RHEL7. It uses Pacemaker as a high-availability cluster resource manager. In this post, It will be used two-node cluster. Each of the node has been configured to resolve the hostnames into the IP addresses. Also, each node has […]

Read More →

How to Create Red Hat HA Cluster Part -IV

This is the last part of clustering series post regarding Red Hat HA cluster. In this post, HA NFS will be created in the cluster. Creating a Fail-over Domain: [root@node01 ~]# ccs -h localhost –addfailoverdomain NFS [root@node01 ~]# ccs -h localhost –addfailoverdomainnode NFS node01-hb.cls.local [root@node01 ~]# ccs -h localhost –addfailoverdomainnode NFS node02-hb.cls.local Creating Resources. As […]

Read More →

How to Create Red Hat HA Cluster Part -III

In this post, we will do the actual work to finish cluster configuration such as starting cluster services, configuration of the clustered LVM disk, creating Fail-over domain, resources, and service groups. Two-Node Cluster As it is indicated in the previous posts two-node cluster is a special form of a cluster because of split-brain situations. So […]

Read More →

How to Create Red Hat HA Cluster Part -II

In the previous post, we prepared cluster environment such as cluster nodes(2), disks(3) network interfaces on each node(2)  and installed necessary packages on the nodes to build our cluster. In this part, we start building our cluster environment. Creating Quorum Disk We need to initialize one of our three disks as a quorum disk which […]

Read More →

How to Create Red Hat HA Cluster Part -I

This post will actually consists of couple of parts. At the end of the complete part of the series,  we will have  Red Hat HA Cluster that runs Apache and NFS . In this tutorial I will be using two CentOS6 hosts, named node01 and node02 on the KVM host. Each node has two interfaces […]

Read More →