Cloud storage is an online storage (English: Cloud storage) model that stores data on multiple virtual servers usually hosted by third parties, rather than on dedicated servers superior. Hosting companies operate large data centers, and people who need data storage and hosting meet their data storage needs by purchasing or leasing storage space from them. Data center operators prepare storage virtualized resources on the back end based on customer needs and provide them in the form of a storage resource pool. Customers can then use this storage resource pool to store files or objects. In fact, these resources may be distributed across many server hosts.
The cloud storage service is accessed through a Web service application programming interface (API) or through a Web-based user interface.
Cloud storage usually means placing primary data or backup data in an undefined storage pool outside the enterprise, rather than placing it in a local data center or dedicated remote site. Proponents believe that by using cloud storage services, organizations can save investment costs, simplify complex setup and management tasks, and put data in the cloud to make it easier to access data from more places.
Three possible uses of cloud storage are:Data backup, archiving and disaster recovery
Advantages and disadvantages of cloud storage:
Advantages:
1. Storage management can be automated and intelligent, all storage resources are integrated together, and customers see a single storage space;
2 , improves storage efficiency, solves the waste of storage space through virtualization technology, can automatically redistribute data, improves the utilization of storage space, and has load balancing and fault redundancy functions;
3. Cloud Storage can achieve scale effect and elastic expansion, reduce operating costs, and avoid resource waste;
Disadvantages: Problems in the application of cloud storage technology in the security field
Limited by the security video surveillance business itself Features: There are differences between surveillance cloud storage and existing Internet cloud computing models. For example, security users tend to store video information locally, government video surveillance applications are more sensitive, there are privacy issues in video information, and video surveillance consumes a lot of network bandwidth. .
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