Abstract
Disaster recovery sites are an important mechanism in continuous IT system operations. Such mechanisms can sustain IT availability and reduce business losses during natural or human-made disasters. Concerning the cost and risk aspects, the IT disaster-recovery site selection problems are multi-criterion decision making (MCDM) problems in nature. For such problems, the decision aspects include the availability of the service, recovery time requirements, service performance, and more. The importance and complexities of IT disaster recovery sites increases with advances in IT and the categories of possible disasters. The modern IT disaster recovery site selection process requires further investigation. However, very few researchers tried to study related issues during past years based on the authors’ extremely limited knowledge. Thus, this paper aims to derive the aspects and criteria for evaluating and selecting a modern IT disaster recovery site. A hybrid MCDM framework consisting of the Decision Making Trial and Evaluation Laboratory (DEMATEL) and the Analytic Network Process (ANP) will be proposed to construct the complex influence relations between aspects as well as criteria and further, derive weight associated with each aspect and criteria. The criteria with higher weight can be used for evaluating and selecting the most suitable IT disaster recovery sites. In the future, the proposed analytic framework can be used for evaluating and selecting a disaster recovery site for data centers by public institutes or private firms.
Highlights
During the past two decades, organizations have become increasingly dependent on information technology (IT) to enhance business operations, facilitate management decision-making, and deploy business strategies [1,2]
The Decision Making Trial and Evaluation Laboratory (DEMATEL) method, an multi-criterion decision making (MCDM) approach originated from the Geneva Research Centre of the Battelle Memorial Institute [63], has typically served to address the question of “whether solving a problem can help solve another one?” The DEMATEL method can convert complex systems into a clear causal structure which simplifies the interrelationships among consideration factors; as a consequence it assists in locating the core issues and quantifies their causality and influence strength [64,65]
In order to construct disaster recovery sites for the Taiwanese data centers, this study aims to define a decision-making framework based on MCDM methods
Summary
During the past two decades, organizations have become increasingly dependent on information technology (IT) to enhance business operations, facilitate management decision-making, and deploy business strategies [1,2]. The increased demand for continuous operations of IT systems has created interest in disaster recovery sites ( called remote backup site) [3,4,5,6,7]. An IT disaster recovery site is a second location at which back-ups are available to the main data center in case of primary site failure [3,8]. IT disaster recovery sites would be able to restore data for the organization to ensure continuous operation, even in the presence of extensive failures that may render an entire site unoperational and for which local replication may be inadequate [9,10]
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