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With the popularity of ordinary virtual host network applications has been unable to meet the needs of the site, the underlying hardware deployment support network can not be ignored, cloud computing, cloud storage and cloud hosting, and various "cloud" concept of birth, resulting in many of our small and large businesses User "foggy", I wonder if the "cloud", after all, the concept of cloud computing and there is no uniform standard. The cornerstone of cloud hosting as a cloud computing to build and the first floor of the advance products to see how to protect the real cloud hosting reliability by more than one physical server support, support for different nodes rapid heat transfer and reconstruction. False cloud or VPS, if the server board or hard disk failure, may result in hours or even longer. A room thousands of servers, each machine has a crash or malfunction possible. When the original compute node configuration or some parts need to upgrade the performance of the need to reduce maintenance shutdown, by thermal migration will top cloud hosting instantly migrate to other nodes on the cloud hosting service will not be interrupted, without rebooting. The VPS in the face of the above-mentioned circumstances, usually stop operation, interrupted a long time. In the event of a sudden compute node machine hardware failure, the real cloud hosting support automatic rebuild to other nodes, only 5 to 10 minutes or so, and VPS may take several hours to wait for hardware repair. In storage, the storage node damage one or two servers, does not have any effect, the system will automatically read and write data directed to other nodes. The VPS is a native storage, hard disk or array once the machine is damaged, ranging from several hours interruption, heavy data loss may occur. Second, look at the real cloud hosting cloud hosting storage mode uses a network of distributed clustered storage, real-time data write multiple copies. False cloud or VPS, use single local hard disk storage (that is, a single physical machine), data is written only one. Data storage is the essential difference between true and false cloud cloud for ultra-high data reliability is the emergence of cloud computing technology and is popular in one of the root causes of the world, only network-based, data can be written to pay would achieve decentralized storage in order to lay the foundation for dynamic avoid single points of failure and migration, and leave the cloud is just an ordinary VPS, data stored in the local hard disk, eggs in only one basket, machine malfunctions and data loss risk will always exist, you can only pray that this machine sufficiently reliable and stable. False cloud service providers generally listed product models and prices, there is no more about the underlying infrastructure, storage and other reports, the real cloud hosting providers offer detailed architectural description, storage, advantages and contrast. Third, see if there is an independent IP has its own IP, but some services are provided JS shared IP. Independent IP is not necessarily true cloud, but the use of the shared IP must be false cloud. All shared IP "cloud Host" is fixed on that machine, and do not migrate to other nodes. Fourth, to see whether the support network and custom mirrors real cloud hosting support, fake cloud or VPS hosting is extremely difficult to support or not support. The importance of the network link, for web sites, very important! Can communicate with each other, the file copy between multiple users under the same cloud hosting, load balancing, and many other advantages to build. The VPS are generally each server alone, does not support the network. Custom images quickly "clone" a user-defined system environment, you must to use in clustered storage mode; and VPS can not be realized because of distributed storage.