The structure model of cloud storage

Compared with traditional storage devices, cloud storage is not only a hardware, but a complex system consisting of a network device, a storage device, a server, an application software, a public access interface, an access network, and a client program. Each part takes the storage device as the core, through the application software to provide the data storage and the business access service externally.

The structure model of cloud storage system consists of 4 layers.

Storage Layer

The storage layer is the most basic part of cloud storage. Storage devices can be FC Fibre Channel storage devices, IP storage devices such as NAS and iSCSI, or DAS storage devices such as SCSI or SAS. Storage devices in cloud storage are often large and geographically diverse, connected to each other over a wide area network, the Internet, or FC Fibre Channel networks.

Above the storage device is a unified storage device management system, which can realize the logical virtualization management of storage devices, Multilink redundancy management, and the condition monitoring and fault maintenance of hardware devices.

Second, the basic management layer:

The base management layer is the core part of cloud storage and the most difficult part of cloud storage. Through clustering, distributed file system and Grid computing, the basic management realizes the collaborative work among multiple storage devices in cloud storage, so that multiple storage devices can provide the same service externally, and provide greater and stronger data access performance.

CDN Content distribution System, data encryption technology to ensure that the data in the cloud storage will not be accessed by unauthorized users, at the same time, through a variety of data backup and disaster-tolerant technology and measures to ensure that the data in the cloud storage will not be lost, to ensure the security and stability of the cloud storage.

Third, the application interface layer:

Application interface layer is the most flexible and changeable part of cloud storage. Different cloud storage operating units can develop different application service interfaces and provide different application services according to the actual business type. such as video surveillance application platform, IPTV and video-on-demand application platform, network hard disk reference platform, remote data backup application platform.

Iv. Access Layer:

Any authorized user can login to the cloud storage system through the standard common application interface and enjoy the cloud storage service. Cloud storage operates in different units, and cloud storage provides different types of access and means of access.