The relationship between cloud computing and cloud storage

For traditional web disks, is not a cloud storage, and now the offline download is the real cloud storage, so cloud storage is the public resources on the server for fast storage, for users whether upload data or download data, or direct online applications do not have to wait too much time, The traditional network disk is a lot of time to upload to the server and spend a lot of time to download down.

Cloud storage is a new concept that extends and develops in the concept of cloud computing (cloud computing), which means that a large number of different types of storage devices in the network can be assembled together through application software through the functions of cluster application, grid technology or Distributed File system, A system that provides data storage and business access functions together externally. When the core of cloud computing system operation and processing is large amount of data storage and management, cloud computing system needs to configure a large number of storage devices, then cloud computing system is transformed into a cloud storage system, so cloud storage is a data storage and management as the core cloud computing system.

Cloud computing is the development of distributed processing (distributed Computing), parallel processing (Parallel Computing) and Grid computing (grids Computing), which automatically splits large computational processes into countless smaller subroutines through the network, A large system of multiple servers is calculated and analyzed to pass the processing results back to the user. With cloud computing technology, Web service providers can handle tens of millions of billions of dollars of information in a matter of seconds to achieve the same powerful network services as supercomputers.

The goal of the cloud computing system is to run on the PC, or stand-alone, personalized operations on a single server migrate to a large number of server "Clouds", which is responsible for processing the user's request and outputting the results, which is a system centered on data operation and processing.

Compared to cloud computing systems, cloud storage can be considered a cloud computing system configured with large storage space. The following figure is a comparison of the architectural models of cloud computing and cloud storage:

Here are several applications for cloud storage:

If users want to download some movie or game resources, often to hang a machine for a long time, not only waste time and a lot of bandwidth consumption.

Offline download is actually the download tool for the server to replace the user first download, more for the unpopular resources. For example, the user's normal download maximum speed can reach 200kb/s, but a resource is an unpopular resource, download speed can only reach 10kb/s, users will have a long time, if users use offline download technology, you can let the service provider's server instead of users to download, users can turn off the download tool or machine, Save time and electricity. By the time it's offline, the user will be 200kb/s from the download tool's server (theoretically, the higher the membership level, the faster, but the maximum speed is still limited to your own broadband) at the speed of your computer. Even for the most popular resources, offline downloading can save a lot of waiting time, the most important thing is to free up the computer broadband to do other things.

But in recent years, with China Unicom as the representative of Internet Access Service operators on Peer-to-peer download of the crazy blockade, so that users pay fees but can not download Internet resources. In response to this bad behavior, the current approach is to use offline downloads.