Повышение эффективности работы Microsoft Hyper - V Live Migration на расстоянии.

Описано переваги технології віртуалізації Microsoft Hyper-V для веб-орієнтованого програмного забезпечення. Досліджено залежність параметрів середовища на процес Live Migration. Реалізовано архітектуру, при якій процес Live Migration показує ефективність роботи, достатню для використання його в якості інструменту управління великими обсягами обчислювальних потужностей в реальному часі.Advantages of Microsoft Hyper-V virtualization technology for web-oriented applications are described. Environment parameters dependence on the process of Live Migration is studied. Architecture is implemented where the process of Live Migration shows sufficient performance to be used as a tool for managing large amounts of computing power in real time.Описаны преимущества технологии виртуализации Microsoft Hyper-V для веб-ориентированных приложений. Исследована зависимость параметров среды на процесс Live Migration. Реализовано архитектуру, при которой процесс Live Migration показывает эффективность работы, достаточную для использования его в качестве инструмента управления большими объемами вычислительных мощностей в реальном времени

A Survey on Auto Live Migration Mechanism in Cloud Environment

Cloud Computing has recently emerged as a compelling paradigm for delivering computing services to users as utilities in a pay-as-you-go manner over the internet. Virtualization is a key concept in cloud computing. Virtualization technology refers to the creation of a virtual machine that acts like a real hardware with an operating system. Live migration is the task of moving a virtual machine from one physical hardware environment to another without disconnecting the client. Its facilities for efficient utilization of resources (CPU, memory, Storage) to manage load imbalance problem and also useful for reduction in energy consumption and fault management. For live migration of the virtual machine cloud provider needs to monitor the resources of all hosts continuously. So there are techniques for automation of this live migration when required. This method is called auto live migration techniques. This paper presents a detailed survey on Auto Live Migration of Virtual machines (VM) in cloud computing

Live Migration of Virtualized Carrier Grade SIP Server

The concept of network virtualization, such as network functions virtualization, has attracted considerable attention from telecom carriers and a live migration technique is a key feature of virtualization technology. However, there are some challenges associated with applying server virtualization technology including live migration to a SIP server. Previous work has not dealt with the performance or behavior of a SIP server during live migration. Neither has it targeted a carrier grade SIP server for live migration. In this paper we present a virtualized carrier grade SIP server running on a virtual machine, which is configured with Carrier Grade Linux, HA middleware and SIP-AS application. We also assess its performance to investigate the impact of throughput degradation and suspension on a SIP layer and HA cluster configuration

Live Migration in Emerging Cloud Paradigms

The elastic provisioning of resources and the capability to adapt to changing resource demand and environmental conditions on-the-fly are, probably, key success factors of cloud computing. Live migration of virtual resources is of pivotal importance in achieving such key properties. However, the ability to effectively and efficiently determine which resource to be migrated and where, by satisfying proper objectives and constraints, remains a research challenge. The existing literature is generally based on metaheuristics running a central resolver. Such an approach is not suitable because it only considers the quality-of-service aspect during the decision-making performance while ignoring the regulatory challenges. This column highlights the regulatory challenges associated with the cross-border dataflow implication of migration and stresses the need to adopt alternative decision approaches.postprin

Live-Migration in Cloud Computing Environment

O tráfego global de IP aumentou cinco vezes nos últimos cinco anos, e prevê-se que crescerá três vezes nos próximos cinco. Já para o período de 2013 a 2018, anteviu-se que o total do tráfego de IP iria aumentar a sua taxa composta de crescimento anual (CAGR) em, aproximadamente, 3.9 vezes. Assim, os Prestadores de Serviços estão a sofrer com este acréscimo exponencial, que é proveniente do número abismal de dispositivos e utilizadores que estão ligados à Internet, bem como das suas exigências por vários recursos e serviços de rede (como por exemplo, distribuição de conteúdo multimédia, segurança, mobilidade, etc.). Mais especificamente, estes estão com dificuldades em: introduzir novos serviços geradores de receitas; e otimizar e adaptar as suas infraestruturas mais caras, centros de processamento de dados, e redes empresariais e de longa distância (COMpuTIN, 2015). Estas redes continuam a ter sérios problemas (no que toca a agilidade, gestão, mobilidade e no tempo despendido para se adaptarem), que não foram corrigidos até ao momento. Portanto, foram propostos novos modelos de Virtualização de Funções da Rede (NFV) e tecnologias de Redes de Software Definidos (SDN) para solucionar gastos operacionais e de capital não otimizado, e limitações das redes (Lopez, 2014, Hakiri and Berthou, 2015). Para se ultrapassar tais adversidades, o Instituto Europeu de Normas de Telecomunicações (ETSI) e outras organizações propuseram novas arquiteturas de rede. De acordo com o ETSI, a NFV é uma técnica emergente e poderosa, com grande aplicabilidade, e com o objetivo de transformar a maneira como os operadores desenham as redes. Isto é alcançado pela evolução da tecnologia padrão de virtualização TI, de forma a consolidar vários tipos de equipamentos de redes como: servidores de grande volume, routers, switches e armazenamento (Xilouris et al., 2014). Nesta dissertação, foram usadas as soluções mais atuais de SDN e NFV, de forma a produzir um caso de uso que possa solucionar o crescimento do tráfego de rede e a excedência da sua capacidade máxima. Para o desenvolvimento e avalização da solução, foi instalada a plataforma de computação na nuvem OpenStack, de modo a implementar, gerir e testar um caso de uso de Live Migration.Global IP traffic has increased fivefold over the past five years, and will continue increasing threefold over the next five years. The overall IP traffic will grow at a compound annual growth rate (CAGR) nearly 3.9-fold from 2013 to 2018. Service Providers are experiencing the exponential growth of IP traffic that comes from the incredible increased number of devices and users who are connected to the internet along with their demands for various resources and network services like multimedia content distribution, security, mobility and else. Therefore, Service Providers are finding difficult to introduce new revenue generating services, optimize and adapt their expensive infrastructures, data centers, wide-area networks and enterprise networks (COMpuTIN, 2015). The networks continue to have serious known problems, such as, agility, manageability, mobility and time-to-application that have not been successfully addressed so far. Thus, novel Network Function Virtualization (NFV) models and Software-defined Networking (SDN) technologies have been proposed to solve the non-optimal capital and operational expenditures and network’s limitations (Lopez, 2014, Hakiri and Berthou, 2015). In order to solve these issues, the European Telecommunications Standards Institute (ETSI) and other standard organizations are proposing new network architecture approaches. According to ETSI, The Network Functions Virtualization is a powerful emerging technique with widespread applicability, aiming to transform the way that network operators design networks by evolving standard IT virtualization technology to consolidate many network equipment types: high volume servers, routers, switches and storage (Xilouris et al., 2014). In this thesis, the current Software-Defined Networking (SDN) and Network Function Virtualization (NFV) solutions were used in order to make a use case that can address the increasing of network traffic and exceeding its maximum capacity. To develop and evaluate the solution, OpenStack cloud computing platform was installed in order to deploy, manage and test a Live-Migration use-case

On the Energy Efficiency of Virtual Machines’ Live Migration in Future Cloud Mobile Broadband Networks

In this chapter, a live migration of the virtual machine (VM) power consumption (PC) model is introduced. The model proposed an easy and parameterised method to evaluate the power cost of migrating the VMs from one server to another. This work is different from other research works found in the literature. It is not based on software, utilisation ratio or heuristic algorithms. Rather, it is based on converting and generalising the concepts of live migration process and experimental results from other works, which are based on the aforementioned tools. The resulting model eventually converts the power cost of live migration from a function of utilisation ratio to a function of server PC. This means there will be neither a need for additional hardware, a separate software, nor a heuristics-based algorithms to measure the utilisation. The resulting model is simple, on the fly and accurate PC evaluation. Furthermore, the latency cost of live migration process, included the time it take the VM to be completely transferred to the target server, alongside the link distance/delay between the two servers is discussed

Live migration of cloud clients that have PCIe devices

Cloud computing service providers use live migration to transparently move guests from one host to another. During live migration, guest access to certain memory regions is temporarily restricted. Such access restrictions are possible with CPUs; however, PCIe devices, e.g., GPUs or other accelerators, typically do not provide the facility to restrict memory access even temporarily. Thus, at present, guests that use PCIe devices cannot be live-migrated without device-specific mechanisms. This disclosure describes techniques to perform live migration for guests with PCIe devices by using hardware transactional memory to perform an atomic transfer of a range of guest memory from a source host to a destination host. PCIe-originated traffic targeted at a memory page under transition between hosts is not paused

Live migration on ARM-based micro-datacentres

Live migration, underpinned by virtualisation technologies, has enabled improved manageability and fault tolerance for servers. However, virtualised server infrastructures suffer from significant processing overheads, system inconsistencies, security issues and unpredictable performance which makes them unsuitable for low-power and resource-constraint computing devices that processing latency-sensitive, 'Big-data'-type data. Consequently, we ask: 'How do we eliminate the overhead of virtualisation whilst still retaining its benefits?' Motivated by this question, we investigate a practical approach for a bare-metal live migration scheme for ARM-based instances low-power servers and edge devices. In this paper, we position ARM-based bare-metal live migration as a technique that will underpin the efficiency on edge-computing and on Micro-datacentres. We also introduce our early work on identifying three key technical challenges and discuss their solutions