Role Of Linux Administrator

A, virtualization virtualization refers to the ability to simulate multiple virtual machines on the same physical machine. Each virtual machine has a separate processor, memory, hard disk, and network interface logically. The use of virtualization technology can improve the utilization of hardware resources, so that multiple applications can run on the same physical machine with each other isolated operating environment. There are also different levels of virtualization, such as virtualization at the hardware level and virtualization at the software level. Hardware virtualization refers to the simulation of hardware to obtain a similar to the real computer environment, you can run a complete operating system. In the hardware virtual ...

If you want to create a private cloud, you need to use management software to create a virtual pool of computing resources, provide access to end users, and deal with security, resource allocation, tracking and billing issues. We tested five mainstream private cloud management products: Novell's Cloud Manager,eucalyptus Enterprise Edition, Opennebula,citrix Lab Manager and cloud.com cloudstack ...

Enterprise IT in 2012 with a lightning speed of rapid development. Concepts such as hybrid environments and cloud operating systems have become real plans from the buzz words discussed, and in many cases even have been implemented on a large scale. At the same time, other trends are becoming clearer – trends that will have a profound impact on the IT path of tomorrow and beyond. Linux has been the operating system for cloud operating systems for two of the time: enabling software and developers to consume and take advantage of the latest hardware innovations, as well as to provide a stable operation of the application software ...

OSCON is another year, in this year's technology, cloud infrastructure has become the focus of public attention. The most interesting is the Docker, which is just beginning to start, this is a full potential of ultra-lightweight container applications. I am fascinated by James Turnbull, Docker's vice president of services, where he will bring a crash course to Docker. In addition to exploring the nature of Docker, we will also discuss the contributions of the cloud and open source. Have you ever published a book on different linux, how do you explore the beginning ...

Again, before and after the annual OSCON meeting, this year the hottest topic in the technical field is necessarily cloud infrastructure. One of the more interesting things about this is that Docker, the lightweight container application, is full of limitless potential. I am very interested in Docker, vice president of service, James Turnbull, who will also bring a Docker crash course at this meeting. In addition to exploring what is Docker, this crash course will also include an introduction to cloud, open source contributions and a real job concept. ...

Ovirt (open Virtualization) is a KVM based (kernel-based Virtual http://www.aliyun.com/zixun/aggregation/39569.html "> Machine) 's Open source IaaS (infrastructure as a Service) project, formerly known as Redhat's desktop virtualization commercial product. Storage Management ...

Today, IBM (NYSE:IBM) in Beijing convened the theme "Big Data crisis big integration attack" IBM ELS Big Data Strategy Media conference, elaborated Els in the big Data age new strategy, is designed to help enterprise users grasp the opportunity brought by large data, to deal with the pressure and challenge of large data to the infrastructure. Enterprise-class Linux server based on host architecture (Enterprise Linux Server), with its high performance, flexible expansion, stable operation, support for heterogeneous environment and other advantages, not only in the key business applications ...

Server08 R2 is the cloud mainstream operating system 2012, the development of cloud computing has begun to descend slowly, after all, the ultimate goal of cloud computing is to bring profits to the business, to bring convenience to people's lives, illusory things even if the outline of the perfect will be eliminated.   In 2012, cloud computing has begun to solve the real problem for users, the major IT vendors have launched their own cloud solutions, it can be said that the next step of cloud computing will usher in a real test, but also the cloud is ushered in a rapid landing opportunities. ...

The first part of the basic environment configuration A simple introduction with the popularity of network marketing and popular, especially through the network to bring benefits and profits, so that more and more people realize that in addition to the traditional sales and publicity model, if the use of network resources for enterprises to bring profits has become an urgent problem for enterprises to solve, Many enterprises and individuals have now set up their own servers. Now the server market is divided into several systems, the first is the Windows platform, the second is the Linux platform, the rest is mainly based on the BSD platform. Introduce a variety of flat ...

Introduction to Namenode in Hadoop is like the heart of a human being, and it's important not to stop working. In the HADOOP1 era, there was only one namenode. If the Namenode data is missing or does not work, the entire cluster cannot be recovered. This is a single point in the Hadoop1 and a hadoop1 unreliable performance, as shown in Figure 1. 　　HADOOP2 solved the problem. The high reliability of HDFs in hadoop2.2.0 means that you can start 2 name ...