The video surveillance storage system is an important part of the surveillance system. In the security surveillance system, when a situation occurs, it is not enough to only analyze and deal with emergencies by browsing the real-time images. Therefore, a set of monitoring storage system is designed. It is very important to record the process of the occurrence of the police so that it can be analyzed and handled afterwards as well as the identification of the responsibility for the accident.
We know that for network video surveillance systems, there are often two options for storage, namely distributed storage and centralized storage. For chain store users, due to their limited investment in video surveillance systems, and some essential auxiliary system investments such as network infrastructure are also carefully planned, the additional cost of centralized storage will be far greater than the cost of distributed storage. At the same time, due to network transmission, it may also result in loss of centralized storage data or system interruption. Then, in the game between cost and actual demand, what kind of monitoring storage system is more appropriate? In the face of the user's doubts, the author interviewed Mr. Bai Yu, technical manager of the video surveillance division of Starnet Ruijie. He elaborated on several major principles that chain companies need to follow when choosing a monitoring and storage method.
Mass data storage principles: monitoring data needs to be written in real time, storage time from 7 days, 15 days, ... even 1 year, the amount of quantity increases linearly with time; large-capacity storage, frequent reading and writing for different storage methods, system pressure There will be great differences.
Principle of high efficiency: Video surveillance is mainly the writing of video streams, and the characterization performance is how many streams (typically 384K to 2Mbps) the storage can support. In the case of multiple concurrent writes, the pressure of video surveillance on storage is large, and special performance optimization is required to meet the requirements.
The principle of cost-effectiveness: Undoubtedly, cost-effectiveness and cost savings are important indicators that many SMEs are very concerned about. In addition to comparing IOPS, MB/s, configuration and purchase prices, after all, video recording data is the lifeline of the video surveillance system and needs to be comprehensively considered from the perspective of total cost of ownership, including labor expenditure, auxiliary system costs, management fees, and energy consumption. , services, and even hidden and potential expenses such as investment protection and security risks.
Applicability principle: The video surveillance application of SMEs has its own characteristics. Different management ideas and network infrastructures have different tendencies for video storage. When choosing video storage methods, we must choose the right system from the actual application environment. Design to avoid bottlenecks in the data path.
The principle of security: The surveillance systems are all 7*24 hours of service, requiring video data to be stored and recalled at any time; the importance of video recording data is unquestionable, so the surveillance system proposes aspects such as reliability, performance, and capacity of storage. The new requirements, which also prompted some for security monitoring storage technology, especially for users with high security requirements, but also need to pay attention to, such as different levels of encryption, data backup and disaster recovery mechanisms.
Scalability Principle: Growing SMEs are often faced with rapid changes and growing business environment, video surveillance systems will also increase in volume, if the storage system capacity and performance expansion capacity is insufficient, or need to upgrade the expansion of the original system “Reinventing†will have a bad influence on the development of the company.
Functional richness principle: At present, SMEs purchase monitoring data storage systems, which are not merely “storage spaceâ€, and often use advanced functions such as streaming media forwarding, remote backup, data protection, and more as the enterprise develops. Service interfaces, extended storage, etc.
The principle of convenient management: Due to the small number of IT personnel in SMEs and weak technical forces, if the surveillance video storage system is too complex and difficult to manage and maintain, it will undoubtedly greatly increase the burden on enterprises. Therefore, in the selection of video storage products, ease of use and ease of use have also become important concerns for SMEs.
Of course, while considering the above principles, users must clearly understand the reality that the video surveillance of a chain enterprise must be a network-based signal interaction system and must rely on the network. However, the status quo of the domestic network is very unattainable. With regard to whether it is dedicated line, ADSL, CDMA, 3G, etc., the bandwidth is very limited, and the actual and theoretical values ​​are very different. Compared with advanced countries, the vast majority of domestic so-called broadband can only be defined as narrowband, digital Video transmission will face the dilemma of narrow cars.
In combination with the above principles and the actual network environment, in some chain enterprises with high attention and sufficient budget, centralized storage must be an ideal choice, whether it is for data security or for internal management, it is a real sense. Unified management. However, taking into account the importance attached to the video surveillance system by most of the chain companies, as well as the actual funding constraints, the storage methods of distributed storage and remote management calls are currently the common choices.
We know that for network video surveillance systems, there are often two options for storage, namely distributed storage and centralized storage. For chain store users, due to their limited investment in video surveillance systems, and some essential auxiliary system investments such as network infrastructure are also carefully planned, the additional cost of centralized storage will be far greater than the cost of distributed storage. At the same time, due to network transmission, it may also result in loss of centralized storage data or system interruption. Then, in the game between cost and actual demand, what kind of monitoring storage system is more appropriate? In the face of the user's doubts, the author interviewed Mr. Bai Yu, technical manager of the video surveillance division of Starnet Ruijie. He elaborated on several major principles that chain companies need to follow when choosing a monitoring and storage method.
Mass data storage principles: monitoring data needs to be written in real time, storage time from 7 days, 15 days, ... even 1 year, the amount of quantity increases linearly with time; large-capacity storage, frequent reading and writing for different storage methods, system pressure There will be great differences.
Principle of high efficiency: Video surveillance is mainly the writing of video streams, and the characterization performance is how many streams (typically 384K to 2Mbps) the storage can support. In the case of multiple concurrent writes, the pressure of video surveillance on storage is large, and special performance optimization is required to meet the requirements.
The principle of cost-effectiveness: Undoubtedly, cost-effectiveness and cost savings are important indicators that many SMEs are very concerned about. In addition to comparing IOPS, MB/s, configuration and purchase prices, after all, video recording data is the lifeline of the video surveillance system and needs to be comprehensively considered from the perspective of total cost of ownership, including labor expenditure, auxiliary system costs, management fees, and energy consumption. , services, and even hidden and potential expenses such as investment protection and security risks.
Applicability principle: The video surveillance application of SMEs has its own characteristics. Different management ideas and network infrastructures have different tendencies for video storage. When choosing video storage methods, we must choose the right system from the actual application environment. Design to avoid bottlenecks in the data path.
The principle of security: The surveillance systems are all 7*24 hours of service, requiring video data to be stored and recalled at any time; the importance of video recording data is unquestionable, so the surveillance system proposes aspects such as reliability, performance, and capacity of storage. The new requirements, which also prompted some for security monitoring storage technology, especially for users with high security requirements, but also need to pay attention to, such as different levels of encryption, data backup and disaster recovery mechanisms.
Scalability Principle: Growing SMEs are often faced with rapid changes and growing business environment, video surveillance systems will also increase in volume, if the storage system capacity and performance expansion capacity is insufficient, or need to upgrade the expansion of the original system “Reinventing†will have a bad influence on the development of the company.
Functional richness principle: At present, SMEs purchase monitoring data storage systems, which are not merely “storage spaceâ€, and often use advanced functions such as streaming media forwarding, remote backup, data protection, and more as the enterprise develops. Service interfaces, extended storage, etc.
The principle of convenient management: Due to the small number of IT personnel in SMEs and weak technical forces, if the surveillance video storage system is too complex and difficult to manage and maintain, it will undoubtedly greatly increase the burden on enterprises. Therefore, in the selection of video storage products, ease of use and ease of use have also become important concerns for SMEs.
Of course, while considering the above principles, users must clearly understand the reality that the video surveillance of a chain enterprise must be a network-based signal interaction system and must rely on the network. However, the status quo of the domestic network is very unattainable. With regard to whether it is dedicated line, ADSL, CDMA, 3G, etc., the bandwidth is very limited, and the actual and theoretical values ​​are very different. Compared with advanced countries, the vast majority of domestic so-called broadband can only be defined as narrowband, digital Video transmission will face the dilemma of narrow cars.
In combination with the above principles and the actual network environment, in some chain enterprises with high attention and sufficient budget, centralized storage must be an ideal choice, whether it is for data security or for internal management, it is a real sense. Unified management. However, taking into account the importance attached to the video surveillance system by most of the chain companies, as well as the actual funding constraints, the storage methods of distributed storage and remote management calls are currently the common choices.
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