Cloud storage technology completely solves Video Monitoring risks and fragmentation issues

 

According to imsresearch statistics, the global shipments of cameras reached 2011 in 26.46 million, and it is estimated that by 2015, the number of cameras will reach 54.54 million. For video surveillance videos alone, the daily data volume reaches thousands of petabytes, and the accumulated historical data will be larger. Driven by the large network and high-definition video surveillance systems, the video monitoring business has entered the data blowout era. The arrival of big data has greatly tested the video monitoring and storage technology. The concept of cloud storage and smart storage has been deepened.
The storage technology used for monitoring has evolved from a single tape, disk, and disk array to a storage network system. The important turning point of storage intelligence lies in the emergence of disk array raid. In the IP-SAN, storage becomes an independent computer system, including equipment, software, network, with intelligence to solve interoperability, expansion, technology upgrade, Component Availability and data security, in particular, data backup, recovery, expansion, and disaster recovery are implemented.
At the beginning of the network and digital era, different storage solutions were adopted based on the project scale. For example, in small-scale video surveillance systems, low-cost DVR storage has become the mainstream, while SAN storage is the mainstream in multi-level networking centralized video surveillance systems. These two solutions solve the digitization problem and overcome the disadvantages of tape storage. On the other hand, after careful analysis, the two solutions still have some aspects to be optimized. Such as DVR storage, the lack of raid and other reliability assurance has become almost fatal. Centralized SAN storage has always to be optimized in terms of cost effectiveness, in the early days of using expensive generic FC-SAN, storage costs have become the biggest pressure on video surveillance systems.
In the face of a large amount of data and application requirements in the video monitoring system, network storage technology has found a new place. In the future, the development of backend devices for video monitoring will deepen the concept of smart storage in addition to cloud storage.
Cloud storage technology is one of the main features of cloud storage that completely solves risks and fragmentation issues. Snia (Storage Network Industry Association), an international authority in the storage field, defines Storage Virtualization: "by abstracting, hiding, or isolating the internal functions of the storage system/subsystem from applications, computing servers, and network resources, it implements storage and data management independent of applications and networks ". The storage virtualization technology abstracts and centrally manages the underlying storage devices to shield the server layer from the particularity of the storage device hardware, and only retains its unified logic features, this enables centralized, unified, and convenient management of the storage system. Compared with traditional virtualized storage, the virtualization Storage Technology Based on "Bare data blocks" not only inherits the features of "High Disk utilization" and "convenient management, the Risk and fragmentation problems of the file system can also be completely solved.
　　☉High Disk Utilization
The disk utilization of traditional storage technology is generally only 30-70%, while the disk utilization is as high as 95% after virtualization technology is adopted. The storage is flexible and can adapt to heterogeneous storage platforms of different manufacturers and categories, it provides better flexibility for storage resource management;
　　☉Convenient Management
It is easy to manage and provides a means for centralized management of a large-capacity storage system, avoiding the management troubles caused by the expansion of storage devices; better performance, the Virtualized Storage System can perform load balancing well, and allocate the bandwidth required for each data access to each storage module reasonably, thus increasing the overall access bandwidth of the system.
　　☉No file fragmentation and file system problems
Cloud storage is one of the hottest big data components: storage unit modules. Rich Media resources mentioned in "Big Data" refer to the large amount of data produced by the video monitoring service. The carriers in the large proportion of rich media information are storage devices and cloud storage solutions.
Storage devices or cloud storage solutions serve as carriers of structured and unstructured data in video monitoring. They are the basis for informatization construction across three dimensions: infrastructure and content information. If you want to dynamically store video information in "rich" media from the underlying storage to event or physical index information analysis, and then convert massive volumes of unstructured data into information and insights, the true charm of big data lies in the true "for people.
However, the biggest problem with cloud storage is that enterprise users prefer to put important and sensitive information in their own hands, that is, the privacy and security of cloud storage cannot be recognized. On the other hand, communication technology restrictions, long waits and limited bandwidth are often intolerable to users.
The Application of Intelligent storage in the field of Video Monitoring deepens the big data era. Especially in the storage solutions of large video monitoring systems, the amount of video content is massive, however, it is not only difficult to obtain effective content from massive data, but also costly to rely solely on manpower. The value of content in massive video data is sometimes very high. Therefore, effective Content Retrieval, that is, intelligent management of stored content, has become an urgent demand in the video monitoring market.
　　1. What is smart storage?
ADIC, the author of the concept of smart storage, defines smart storage as: more flexible, efficient, and reliable protection, management, and access to growing key business data.
Intelligent storage is recognized as the core concept of application and user transparency. Its biggest advantage lies in its security protection, ease of management, and high I/O performance. The main ways to achieve the above three goals are the centralization, digitalization, and systemization of storage. The intelligent storage of video monitoring is essentially Content-based intelligent storage.
　　2. Storage Management in Intelligent Storage Technology
In terms of content storage management, the cost of storage media is different, storing different types of content on different storage media can improve the efficiency of querying valid data and greatly reduce the device cost of the storage system.
Smart Hierarchical Storage Management (HSM) uses high-speed and high-capacity non-online storage devices (such as large-capacity tape libraries) as the next-level hardware device, then, the commonly used data in the hard disk is automatically migrated to the second-level large-capacity storage device such as the tape library according to the specified policy. When you need to use the data, the Hierarchical Storage System automatically transfers the data from the back-level storage device to the hard disk. To put it simply, data migration is a kind of offline media that can store a large amount of infrequently accessed "Cold data" in the tape library, disk library, and so on, this technology only saves a small amount of "hot data" on raid. When data stored on tape or other media is accessed, the system automatically migrates the data to raid. Similarly, raid data that has not been accessed for a long time is automatically migrated to the tape media, greatly reducing investment and management costs.
For users, the above data migration operations are completely transparent. Users may feel that the access speed to the hard disk is a little slower, but they will obviously feel that the capacity of the logical hard disk is greatly increased. Compared with the traditional data management model, the advantages of solutions using this technology are obvious.
　　3. The key to smart storage is software.
Intelligent Hierarchical Storage Management Technology is a technology of intelligent storage in content management, as well as automatic identification of storage media, automatic monitoring of read/write records ...... Enhancing user transparency in every detail of the storage system is the requirement of intelligent storage. To achieve this goal, we need to fully consider the content requirements of users in the design of storage protocol compatibility and management software.
In short, as the carrier of image data and alarm event records, the importance of storage is self-evident. Currently, storage is not only a device, but has been upgraded to a solution platform. A large-capacity storage system is not a simple accumulation of storage devices, but also needs to solve the completeness of the storage mechanism, storage standards, and the availability of time and space, there are also high-capacity storage system manageability requirements.

Cloud storage technology completely solves Video Monitoring risks and fragmentation issues