High availability is the result of thorough planning and careful system design. The complete howto guide for maximizing the availability of enterprise systems. How to consider service management in high availability design. You can conduct high availability planning at two levels. The key concepts and techniques used to build high availability computer systems are. Training, support, backup, and maintenance account for nearly 80 percent of the total cost of todays enterprise applicationsand much of that money is spent trying to squeeze increased availability out of applications in spite of weak design and management processes. High availability computer systems jim gray daniel p. The design of high availability architectures is largely based on the combination of redundant hardware components and software to manage fault correction and detection without.
This video describes different high availability and disaster recovery architectures. High availability is a service that is designed and operated to minimize downtime. An example of a function that restarts servers versus migrating processes is vmwares ha. Design, techniques and processes by piedad, floyd, hawkins, michael w. Design, techniques and processes harris kern s enterprise computing. The following are common high availability techniques. Training, systems support, backup and maintenance account for nearly 80% of the total cost of todays enterprise applications and much of that money is spent trying to squeeze increased availability out of applications in spite of weak design and management processes. Database administrators are encouraged to use hardwarebased mirroring to maintain redundant. Over the past 2 months, ive seen an increase in the number of end user inquiries regarding high availability and. Siewiorek digital equipment corporation department of electrical engineering 455 market st.