Recently room schools are due for replacement, he began to realize that the cloud desktop. The desktop is what cloud? Where there is what advantages and disadvantages, and the difference in the PC. Today some understanding.
VDI Virtual Desktop Infrastructure Virtual Desktop Infrastructure
Virtual desktop architecture is "centralized computing, distribution display" principle, through virtualization technology, all client operations into one, centralized processing within the enterprise data center, while the thin client desktop users of terminals or private branch way, is only responsible for input and output interface display, does not participate in any calculations and applications.
As the name suggests, the "virtual desktops" that desktop users are not accessing their PC side in the true sense of the desktop, but are connected through a certain way to one in the data center of the desktop, we can operate on the virtual desktop on a local PC, this is somewhat similar to remote Desktop we often use before, just before the remote Desktop is a desktop to operate on another computer over a network, and now we are direct access to a large data center, we want to get operations Desktop, and use its resources.
Currently virtual desktop solutions are mainly divided into VDI and SBC (Serverd-Based Computing) 2 categories.
The former is the data operation of all clients are concentrated in the management server, after transmitting the display result to the distal end of the compressed video frame restored after the client display.
The latter is a unified application software installed on the remote server, users access and manipulate the desktop to the server and application server through the session and the establishment of a session between different users are isolated from each other.
Cloud desktop (or desktop cloud) defines : a unique cloud desktop-based communication protocol, to be released by operation of the operating system or a desktop application cloud image redirection terminal.
Cloud server is responsible for computing and storage, the user's desktop operating system created by virtualization technology as a virtual machine out of the terminal is only responsible for connecting to the server virtual machine image and get mouse and keyboard operation. User no longer needs the PC, only the terminal connected to a display, mouse, keyboard can.
The core of the cloud desktop technology are:
- Operating system virtualization: You can run more than one "office computer" simultaneously on a single physical server, the traditional computer hardware is modeled became invisible running "computer software", and there is no interference between each other, can respectively boot up, shutdown, and the like using conventional operations;
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Remote Desktop: Since the office computers are centrally located on the server software simulation, we can not let the users all around the server computer, right? They are connected to their desktop obtained by the "cloud terminal" Remote, "cloud terminal" also commonly known as "thin clients", "thin clients" because its volume can be small, like a set top box, as long as the run a small client software to connect to the user's own computer through the network, then the keyboard, mouse, monitor receiving terminal on the cloud, it can be like a normal office use the same computer, this technology has become remote connection the key must have smooth, stable, to make the user experience goes, after the connection is established, feel and use common computer hardware differences.
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Cloud management platform. So many computer hardware computer into a software (or virtual machine), are stored centrally on one or more servers, these virtual machines how to create, modify, delete? Server failure how to do? Who will do the day to day management of it? Of course, the cloud management platform, and this platform is that all server management system, enter the system administrator, you can stay at home to manage the virtual machine, use it as a computer software as were new, configure, start, close, delete, monitor.
Despite the current domestic form of cloud desktop products in the market, a wide range, but the core technology is always not open around this three-piece, such as a technical framework for the desktop cloud is this: cloud management platform has become the mainstream of the current standardized open source technology OpenStack cloud computing platform, a stable Linux / KVM kernel virtualization technology, and based on Spice-depth optimization of ATVP remote Desktop protocol, can provide a very mature businesses, governments, schools and other customers, standard, open desktop cloud products and services.