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Software as a Service(SaaS) is increasingly becoming an important application development and delivery model. Among different implementation architectures, multi-tenant architecture(MTA) has received most attentions. Not only because it is easier to be maintained, but also increases the resource utilization. However, sharing the same instance will have impact on the availability of each tenant. Availability...
We present a quantitative method based on stochastic Petri net (SPN) to evaluate the survivability of distributed service. Three types of combination service models: one-to-one, one-to-N, and M-to-N are studied, which can reflect survivability of distributed service from a different perspective. Absorbing-state reliability, maintainability and steady-state availability are considered as measures of...
After many years of silence, virtualization recently became a hot topic once again, especially in the field of system dependability. Current researches mostly focus on more technical methods without taking into account the problem of how to verify the dependability of these technics. This paper proposes a Markov model to describe virtualization systems and gives the solving methods to quantitatively...
Future network systems and embedded infrastructure devices in ubiquitous environments will need to consume low power and process large amounts of network packet traffic. In order to meet necessary high processing efficiency requirements, future processors will have many heterogeneous cores with reduced reliability due to low voltage, small transistor sizes, semiconductor wearout, and environmental...
An emerging problem facing future high performance multi-core processors is transient faults caused by radiation, noise and other factors. These faults will likely make future multi-core processors less reliable as chip features shrink and the number of cores increase. To address this problem, we propose a new and practical systems approach of managing and allocating reliability according to software...
An emerging problem facing future high-performance embedded multi-core and network processors are transient faults caused by radiation, noise and other factors.These faults will likely make future multi-core processors less reliable as chip features shrink, voltages decrease, and the number of cores increase. To address this problem, we propose a systems approach of managing and allocating reliability...
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