Compared with the traditional storage device, storage is not just a hardware cloud, but a network equipment, storage equipment, servers, applications, public access interface, the access network, and client programs, and other components of complex systems. To store equipment for the various parts of the core, through the application software to the external data storage and business access services.
Cloud storage system architecture model consists of four layers.
A storage layer:
Storage layer is the most basic part of the cloud storage. FC storage devices can be Fibre Channel storage devices, NAS and iSCSI can be storage devices such as IP, can also be a SCSI or SAS storage devices such as DAS. Cloud storage is often a huge number of storage devices and the distribution of many different regions, with each other through the wide area network, Internet or FC Fibre Channel network together.
Storage devices on a unified storage device management system, can achieve a virtual logical storage device management, multiple link redundancy management, and hardware status monitoring and troubleshooting.
Second, infrastructure management:
Based storage management is the core part of the cloud, cloud storage is the most difficult part. Based management through the clusters, distributed file systems and grid computing and other technology, cloud storage between multiple storage devices to work together to make a number of external storage devices can provide the same service, and to provide bigger and more powerful better data access performance.
CDN content distribution system, data encryption technology to ensure the data in the cloud storage will not be accessed by unauthorized users, the same time, through a variety of data backup and disaster recovery technologies and measures to ensure the data in the cloud storage is not lost, to ensure cloud store's own security and stability.
3, application interface layer:
Cloud storage application interface layer is the most flexible part. Cloud storage of different operating units can be based on actual business type, developing different application service interface provided by different applications. Application platforms such as video surveillance, IPTV and video-on-demand application platform, network hard drive reference platform, remote data backup application platforms.
Fourth, access layer:
Any authorized user application via a standard interface to log on public cloud storage system, enjoy the cloud storage service. Different operating units of cloud storage, cloud storage to provide access types and access methods are also different.