Julio's Blog


High Availability and Pacemaker 101!

In this blog post, we will talk a little bit about High Availability and a little bit more about Pacemaker. Here are some of the topics of this post: Introduction to High Availability (HA) and Clustering. Benefits of Highly Available applications. How HA is implemented on Red Hat Enterprise Linux (RHEL) 7. HA requirements on RHEL 7. Demo: Building a 3 node Apache cluster. Introduction to High Availability (HA) and Clustering. What is High Availability (HA)? In IT, High Availability refers to a system or component that is continuously operational for a desirably long length of time. 3 cores principles to HA Elimination of single point... read more »