New Article: Detect Failures and Ensure High Availability: DRBD and Corosync/Pacemaker
Many clustering and high-availability frameworks have been developed for Linux, but in this article, I focus on the more mainstream and widely used Corosync and Pacemaker service and DRBD. If you follow along, you’ll learn how to configure an active-passive dual-node cluster that replicates local storage (accessed and written to/read from vital applications or services) to its neighboring node. In this way, you’ll be able to host and serve data requests, so long as a single node of the cluster remains online.