For high availability systems, a single network interface represents a single point of failure (SPOF) that can bring the system down.
High-availability system solutions can be divided into two categories, namely hardware based and software based solutions.
Certain design styles for high-availability systems have high initial, development and maintenance cost.
This chapter focuses on general concepts related to high-availability systems and discusses the approaches that are currently in use to provide high availability systems.
This chapter illustrates high-availability systems solutions presented by makers of information processing systems and operating systems vendors.
Other than analyzing system architecture, this chapter further reviews possible evolutionary developments in microprocessors, multiprocessors, clusters, MPPs, and high-availability systems.
The design of high-availability systems follows a number of principles derived from the concepts of modularity, fail fast, independence of failure modes, and redundancy and repair.
One of the essential properties of high-availability systems is the capability of data processing resources to deliver the specified services to fulfill a certain requirement pertaining to any business or government activities.
The P-NBI control system is to be fully remodeled with PLC (Programmable Logic Controller), which is featured by high market availability, system extensibility, cost-effectiveness, and independent development in programming.
"We built MongoDB from our own experiences building large scale, high availability, robust systems," says CTO and co-founder Eliot Horowitz.
