共查询到20条相似文献,搜索用时 15 毫秒
1.
2.
3.
4.
Information security technology confronts severe challenges because of the safety demands of cloud computing.The trustworthiness and self-safety of cloud computing platform are the foundation of cloud computing security.The confidence of cloud users is the key issue the deep development and popularization for cloud computing.The trusted cloud computing technology provides a feasible solution.From the standpoint of guaranteeing the trustworthiness of cloud computing platform,related research progresses on trusted virtualization,construction of trusted cloud platform and trusted virtual machine were introduced.Additionally,the characteristics,application scopes and effectiveness of typical schemes were analyzed and compared.Finally,current limitations and possible directions for future research were discussed. 相似文献
5.
Ali Asghar Rahmanian Abbas Horri Gholamhossein Dastghaibyfard 《International Journal of Communication Systems》2018,31(4)
Number of cloud data centers which consists of hundreds of hosts has increased tremendously around the world due to increase in demands for cloud services. It is expected energy consumption of data centers will reach 139.8 billion Kwh by 2020. Many algorithms are proposed to reduce energy consumption as well as service level agreement violationby minimizing the number of active hosts. Current proposed algorithms do not consider data center architecture, the physical position of hosts, and energy consumption of numerous switches that are in data centers. In this paper, a novel hierarchical cloud resource management is proposed that not only minimizes the number of hosts but also aggregates virtual machines on a limited subset of data center racks and modules to minimize energy consumption. Experimental results with Cloudsim show that our proposed algorithm reduces energy consumption up to 26% and service level agreement violation up to 96%. 相似文献
6.
易涛 《信息安全与通信保密》2012,(5):63-65
云计算为信息系统未来的发展方向,而技术的发展却面临着许多的困难。随着云计算的不断普及和应用,安全问题的重要性正呈现逐步上升的趋势,并且成为制约云计算技术发展的关键因素。云计算的核心技术在于虚拟化,而虚拟化存在诸如安全隔离、受控迁移、权限访问等系列安全问题,已经实实在在摆在人们面前。文中着重分析目前虚拟化技术存在的安全问题,并提出了与之匹配的解决思路。 相似文献
7.
8.
Mostafa Ghobaei‐Arani Ali Asghar Rahmanian Mahboubeh Shamsi Abdolreza Rasouli‐Kenari 《International Journal of Communication Systems》2018,31(8)
In recent years, the increasing use of cloud services has led to the growth and importance of developing cloud data centers. One of the challenging issues in the cloud environments is high energy consumption in data centers, which has been ignored in the corporate competition for developing cloud data centers. The most important problems of using large cloud data centers are high energy costs and greenhouse gas emission. So, researchers are now struggling to find an effective approach to decreasing energy consumption in cloud data centers. One of the preferred techniques for reducing energy consumption is the virtual machines (VMs) placement. In this paper, we present a VM allocation algorithm to reduce energy consumption and Service Level Agreement Violation (SLAV). The proposed algorithm is based on best‐fit decreasing algorithm, which uses learning automata theory, correlation coefficient, and ensemble prediction algorithm to make better decisions in VM allocation. The experimental results indicated improvement regarding energy consumption and SLAV, compared with well‐familiar baseline VM allocation algorithms. 相似文献
9.
戴尔长期为客户提供数据中心解决方案,提供基础架构解决方案,也是一个云服务提供商,通过提供“桌面到数据中心”的端到端解决方案,为客户带来最佳体验.戴尔和业界领先的合作伙伴合作,让客户拥有更多选择.戴尔公司的云计算愿景是帮助客户实现“无边界IT”,无论是对标准技术的采用、对异构环境的兼容,还是对上层管理软件的支持,相关的云计算产品和解决方案一直秉承开放的理念,致力于为客户创造更大价值. 相似文献
10.
11.
12.
云桌面融合了企业级服务器与虚拟化平台产品的功能和优势,能够将用户的桌面环境以虚拟机的形式托管到数据中心内的高性能服务器上.管理员可以实现对所有云桌面资源进行可视化的便捷管理,快速地批量部署云桌面满足大量用户的需求等操作.用户可以通过PC、瘦客户机等多种终端使用自己的云桌面,方便地完成日常办公、教学、管理等任务. 相似文献
13.
Nasim Donyagard Vahed Mostafa Ghobaei‐Arani Alireza Souri 《International Journal of Communication Systems》2019,32(14)
Cloud computing introduced a new paradigm in IT industry by providing on‐demand, elastic, ubiquitous computing resources for users. In a virtualized cloud data center, there are a large number of physical machines (PMs) hosting different types of virtual machines (VMs). Unfortunately, the cloud data centers do not fully utilize their computing resources and cause a considerable amount of energy waste that has a great operational cost and dramatic impact on the environment. Server consolidation is one of the techniques that provide efficient use of physical resources by reducing the number of active servers. Since VM placement plays an important role in server consolidation, one of the main challenges in cloud data centers is an efficient mapping of VMs to PMs. Multiobjective VM placement is generating considerable interest among researchers and academia. This paper aims to represent a detailed review of the recent state‐of‐the‐art multiobjective VM placement mechanisms using nature‐inspired metaheuristic algorithms in cloud environments. Also, it gives special attention to the parameters and approaches used for placing VMs into PMs. In the end, we will discuss and explore further works that can be done in this area of research. 相似文献
14.
随着虚拟化技术成为用于提高云计算数据中心能源利用效率的一项重要技术。文中针对虚拟机的初始化放置问题,通过对遗传算法的染色体编码,变异算子等方面的优化,实现了一个改进的遗传算法 以解决虚拟机的初始化放置。实验结果表明,文中所提算法在对数据中心的能源效率方面有明显的提高。 相似文献
15.
Most existing researches of resource allocation in data center did not take into full consideration how to decrease energy consumption.The energy efficiency virtual resource allocation for cloud computing as a multi-objective optimization problem was formulated,which was then solved by intelligent optimization algorithm.The simulation results reveal that the strategy can successfully generate schedule scheme of different numbers of servers-VM with diverse characteristics and decrease the total operating energy of data center effectively. 相似文献
16.
17.
对云计算和虚拟化在电信行业智能数据中心的应用进行了研究。电信行业的数据中心是各类电信增值业务的部署核心,是实现数据共享和进行数据存储、处理操作的重要区域。为了满足当前电信行业需要处理海量数据的需求,在对云计算、虚拟化以及存储区域网络等关键技术进行研究的基础上,应用相关技术设计了电信行业智能数据中心,以虚拟化技术为基础,整合了数据中心的软硬件资源,使数据中心资源具备了智能化管理和动态部署的能力,其实际的运行效率显著提高。 相似文献
18.
李明 《电信工程技术与标准化》2012,25(4):39-43
云计算带来的超大规模数据中心建设,对数据中心网络提出了新的需求,网络虚拟化技术是解决这些新需求的有效手段,本文通过系统论述数据中心网络虚拟化技术中涉及的控制平面虚拟化技术和数据平面虚拟化技术,分析了业界主要厂商的技术实现和新的虚拟化标准协议的技术原理,为数据中心网络虚拟化技术的发展提出了一个较为清晰的演进路径. 相似文献
19.
研究了云计算安全技术体系和关键技术,介绍了云计算安全技术标准情况,并在分析云计算安全监管现状的基础上,提出了我国云计算安全的发展建议。 相似文献
20.
构建在云计算业务平台资源池上的云呼叫中心系统,不仅能够在业务层面上进行负载均衡控制,实现呼叫中心的智能化资源调度和分配,自动均衡处理来话负荷、座席签人负荷,支撑话务、服务资源的统一调度以及业务的统一运营管理;而且由于云呼叫中心业务系统部署在云数据中心资源池上,与其他应用可以共享基础设施,因此还需要实现资源动态伸缩分配.提出了一种云呼叫中心系统中对虚拟化资源进行动态分配的方法,这是一种根据资源池上层应用系统的运行情况决定资源池资源动态分配的方法,该方法包括云呼叫中心系统发起虚拟化资源动态分配请求的触发机制、云呼叫中心系统与资源管理平台之间进行资源动态分配的接口等. 相似文献