Internet servers need to be highly-available, inexpensive, and scalable. These goals are often connicting and most designs meet, with limited success, only few of them. In this paper we describe the SunSCALR framework that achieves these goals by combining proven technologies, careful system design, and engineering trade-oos. It uses a distributed, self-stabilizing algorithm for status monitori...

Virtualization has become commonplace in modern data centers, often referred as “computing clouds”. The capability of virtual machine live migration brings benefits such as improved performance, manageability and fault tolerance, while allowing workload movement with a short service downtime. However, service levels of applications are likely to be negatively affected during a live migration. F...

lexible production: this key strategic goal of every modern manufacturing company has made robotic tending of press brake machines a common sight in sheet metal fabrication workshops. And with advantages over manual tending like better quality, higher efficiency, improved safety, less scrap and accurate repeatability, its popularity is certain to grow. One limitation is slowing its advance, how...

Virtualization technology plays a great role in cloud computing. Virtualization supports creation and migration of virtual machines (VM) on physical hosts. Live migration provides the load balancing of virtual machine. One of the objectives of live migration is that it should have minimum migration time as well as downtime so that application running on VM will be suspended for negligible time....

An indispensable feature enabled by system virtualization is the live migration of virtual machines (VMs). By dynamically relocating an entire execution environment including the operating system from one machine to another, a networked system such as data-center and computing grid can benefit from load balancing, online maintenance and fault tolerance. Ideally, a virtual machine should be able...

With the risk of natural disaster occurrence rising globally, interest in innovative resilience techniques is greatly increasing. In particular, Data Center (DC) operators are investigating to avoid data-loss and service downtime case occurrence. cloud DC networks, DCs host Virtual Machines (VM) that support services. A VM can be migrated, i.e., transferred, across without disruption, using a t...

Failure detection has always been a demanding task in the electrical machines community; it has become more challenging in wind energy conversion systems because sustainability and viability of wind farms are highly dependent on the reduction of the operational and maintenance costs. Indeed the most efficient way of reducing these costs would be to continuously monitor the condition of these sy...

Oil sand pumps are widely used in the mining industry for the delivery of mixtures of abrasive solids and liquids. Because they operate under highly adverse conditions, these pumps usually experience significant wear. Consequently, equipment owners are quite often forced to invest substantially in system maintenance to avoid unscheduled downtime. In this study, an approach combining relevance v...

A sophisticated deployment system plays an important role in automating and improving the process of software delivery, especially for cloud applications. Since cloud applications usually consist of many components run on different virtual machines, i.e., EC2 instances, the deployment is time-consuming and error-prone, which may involves manual operations and complex scripts. We develop a deplo...