Architecting Linux High-Availability Clusters - Part 1By Tau Leng; Jenwei Hsieh, Ph.D.; and Edward Yardumian (Issue 4 2000)This article, the first in a series on Linux high-availability (HA) clusters, provides an overview of the Linux HA cluster. It describes the two common types of clusters, the Linux Virtual Server for IP HA and load balancing, and HA application clusters. Future articles in the series will cover product-specific implementations and features. Linux is known as a stable operating system. However, a Linux client/server configuration can have several points of failure, including the server hardware, the networking components, and the server-based applications. As more administrators choose Linux for critical applications, the demand for high-availability (HA) clustering for the Linux platform is increasing.