The difference between virtual machines and system virtualization, and their application scenarios
I. Desktop cloud, you can access cross-platform applications, as well as the entire client desktop through a thin client or any other device connected to the Chinese network. Desktop cloud and cloud desktop, is a different focus on the same object. Compared with the traditional pc, the big main chassis is replaced with some small boxes , a thing similar to a TV set-top box, the mouse, keyboard, monitor, China cable are plugged into this top. The computer room table is much more spacious. Main features: First, the local terminal is just a display device. Second, the management is centralized, IT engineers through the control center to manage hundreds of virtual desktops, all the updates, patches only need to update a "base image" on it. Third, in the desktop cloud solution, first of all, all the data and computing are carried out on the server side, the client only shows its changing image, so there is no need to worry about the client to illegally steal information, we see in the movie commercial spies with USB flash drives crazy copy company trade secrets of the situation will no longer appear. Second, the IT department according to the security challenges to produce a variety of new rules, these new rules can be quickly applied to each desktop. Application Scenarios: Telecom Business Office, IT Industry System Operation and Maintenance II. Desktop Virtualization, the terminal system of the computer (also called desktop) is virtualized to achieve the security and flexibility of desktop use. Can be accessed through any device, at any location, at any time through the Chinese network to access the desktop system belonging to our personal. Desktop virtualization relies on server virtualization, which is performed on servers in data centers to generate a large number of independent desktop operating systems (virtual machines or virtual desktops) that are sent to end devices according to a proprietary virtual desktop protocol. The user terminal logs on to the virtual host through Ethernet, and only needs to remember the user name and password and the Chinese customs information, and can access their desktop system through the Chinese network anytime and anywhere, thus realizing the single-machine multi-user. Why Desktop Virtualization? Users can access the desktop system remotely and get the same experience as PC; administrators can also easily complete all the management work only in the data center. So desktop virtualization technology is essentially an effective separation of user access and system management. The end user's access to the desktop does not need to be restricted to specific devices, specific locations and specific times. We can access our desktop through any kind of device that meets the access requirements. Features I. Fast, flexible deployment: on-demand application, rapid issuance, no need to carry heavy PC hosts, unified access, anytime, anywhere access; II. Improve resource utilization: unified management of background data center resources, and unified scheduling and management to maximize the utilization of resources; III. Data storage is safe and reliable: the data is stored in the background data center, safe and reliable. And access to the virtual desktop in the Chinese network are transmitted on the picture information, it is not easy for others to steal information through the Chinese network; Fourth, the maintenance is convenient: the thin terminal does not require software maintenance; virtual desktop maintenance can be carried out uniformly in the background, it is very convenient; 5, energy saving and emission reduction: the use of desktop virtualization system, due to the thin terminal power consumption is very low, at the same time, the data center's resource utilization is higher, so you can achieve cost savings, energy saving and emission reduction, saving electricity 90%. energy saving and emission reduction, saving more than 90% of electric power. Application scenarios: big data server management, enterprise laptop management, remote workers one-to-many branch machines