Abstract An antifragile system of software and stakeholders, including designers, developers, operators, learn from incidents how to avoid outages maintain high uptime. This tutorial article reviews design operate such socio-technical systems with antifragility downtime. It documents the importance four principles two operational by exploring polar opposite anti-principles interplay between ant...

Load balancing is one of the main challenges in a Virtual Machine (VM) Environment in order to ensure equal utilization of all the available resources while avoiding overloading a subset of machines. In this paper, we propose an efficient load balancing strategy based on VM live migration. Unlike previous work, our strategy records the history of mappings to inform future placement decisions. W...

Systems that are more dependable and less expensive to maintain may be more expensive to purchase. If ordinary customers cannot calculate the costs of downtime, such systems may not succeed because it will be difficult to justify a higher price. Hence, we propose an easy-tocalculate estimate of downtime. As one reviewer commented, the cost estimate we propose ‘‘is simply a symbolic translation ...

For an electronic business (e-business), customer satisfaction can be the difference between long-term success and short-term failure. Customer satisfaction is highly impacted by Web server availability, as customers expect a Web site to be available twenty-four hours a day and seven days a week. Unfortunately, unscheduled Web server downtime is often beyond the control of the organization. Wha...

Software upgrades are one of the leading causes of downtime in IT infrastructures. Long running datamigration processes require intensive up-front preparation, extended maintenance windows and close monitoring, and they impose a significant burden on the system administrators. Even worse, major upgrades sometimes fail due to complex, hidden dependencies within the system, causing unplanned down...