Cloud storage-the trend of future development?

Over the past two years, telecom and Netcom in the country to build a lot of different sizes of "global eye", "Wide Vision" network video surveillance system. The ultimate goal of the "global Eye" or "wide vision" system is to build a nationwide video surveillance system similar to voice and data service networks, providing remote real-time video surveillance and video playback for all users, and charging fees through services. However, due to the current network conditions within and between cities, the limits of the size of video surveillance system storage equipment, "global eye" or "wide horizon" generally can only be built within a city.

Taking Ping An city as an example, the networking requirements for thousands of webcam video recordings are not simply added to the storage device. Still the above mentioned 720P HD camera for example, its hourly video video can be compressed to about 3GB capacity, according to the one-month saving time requirements calculation, you can get such a data: 3gb/hours x24 hours x30 days X1 Road =2.16t. At present, the safe city Large-scale network surveillance camera number is few hundreds of, many tens of thousands, assuming that a traffic monitoring system has 500 high-definition cameras, then need to save 30 days of monitoring system required minimum storage capacity of 1PB, and if the provincial traffic monitoring system networking, and if the National traffic monitoring network? can imagine , this huge amount of data storage has to be a challenging challenge for the store.

Cloud computing is a hot spot in the IT industry in the past two years, and the cloud storage concept that extends and develops in cloud computing concept is very tempting to storage domain, it is through the function of cluster application, grid technology or Distributed File system, A large number of different types of storage devices in the network through the application software together to work together to provide data storage and business access functions, it seems to the large network video surveillance system has brought dawn.

However, just as cloud computing is a problem for the IT industry, the idea of cloud storage seems to be confronted with many challenges, such as data security, latency of transmission, and portability of storage.

Data security. Security has been a controversial topic since the birth of cloud computing, and security is often the primary business consideration and technical consideration in cloud storage. The security of video surveillance data can be imagined, how to satisfy the user's requirement for data security is the reality that cloud storage has to face.

Delay of data transmission. Remote video surveillance can not avoid the embarrassment is to monitor the video delay, especially in the event of major emergencies, it is likely that a second delay will cause significant human and financial losses. So how does cloud storage ensure that a large number of data requests are provided with sufficient access to the population?

The portability of storage. Some users also consider the portability of data when considering managed storage. This is generally guaranteed, and some large service providers offer solutions that promise their data portability is comparable to the best traditional local storage. Some cloud storage combines powerful portable capabilities to transfer the entire dataset to any medium you choose, even to a dedicated storage device.

Conclusion: Once, DVR occupies a long time in the field of security, the first storage, at present it is still the most common mode of security storage, however, in the digital Digital Network video Surveillance system in a large-scale march, the current integrators have more choices, NAS, ISCSI, Fcsan and other storage solutions seem to be more popular The--nas scheme facilitates the sharing of stored information, and iSCSI and Fcsan schemes facilitate the expansion of storage capacity, and embedded NVR are less expensive to use than competitive costs. With high-definition, networking these words constantly impact the field of video surveillance, the existing storage mode does not seem to solve the problem of massive data storage, the emergence of cloud storage, security industry can bring dawn?