Through storage virtualization technology, users can use the existing hardware resources to unify heterogeneous storage resources in the SAN into a single view storage pool (Storage Pool) and use technologies such as Striping, LUN Masking, and Zoning. According to their own needs, this large storage pool can be conveniently divided and distributed, protecting the existing investment of users and reducing the total cost of ownership (TCO). In addition, according to the needs of the business, the dynamic and transparent growth and reduction of the storage pool to the server can be realized. Further, the virtualization between the SAN and the SAN and the global virtualization can be realized. Storage Requirements Drive Storage Virtualization Technology The rapid growth of information and explosive growth characteristics, streaming multimedia, e-mail, home network, ASP, ERP, biotechnology, scientific computing, digital imaging, transaction processing, e-commerce, telemedicine, data warehousing and mining lead to The enormous demand of users for storage capacity, traditional storage structures and technologies no longer have the ability to effectively manage these explosive information. Heterogeneous operating environment: Due to historical reasons, more and more companies use hardware and software products from different vendors and are incompatible with each other. Multi-platform interoperability and data sharing are important for application convenience, reducing repetitive investments, and protecting existing investments in the enterprise. High availability: As more and more critical data needs to be preserved, customers are required to obtain information at any time. Data is a much more valuable asset than computer equipment, including bank accounts, phone orders, purchase orders, etc. Therefore, companies must ensure that The high availability of its system. Storage management automation and intelligent requirements: Most of the previous storage management and maintenance work was done manually. As the storage system becomes more and more complex, the possibility of errors is getting bigger and bigger. If you lose your care, you will lose data. It often exceeds the capabilities of IT management personnel, and the quality requirements of management and maintenance personnel are getting higher and higher. Modern storage systems require manageability, such as intelligent automatic management and maintenance functions, so companies must understand how to manage information with limited human and material resources. Storage virtualization technology, with its unique technology advantages, is the best storage solution to meet these needs. With storage virtualization technology, users can manage growing corporate data information in the most cost-effective manner with minimal IT resources, simplifying the complexity of managing heterogeneous operating environments. Virtual storage technology is not just a new technology concept. More importantly, it provides users with a new storage implementation that enables enterprises to manage their entire storage resources more flexibly, efficiently, simply, and economically. . How Video Surveillance Realizes Storage Virtualization Storage virtualization has some basic requirements for infrastructure. How to implement storage virtualization in the field of video surveillance? First, there needs to be a strong, dedicated storage network where data information is stored in any possible free space in the network and accessed without affecting application performance. Therefore, it is more suitable for projects with large capacity and relatively concentrated distribution. For example, the storage architecture of some large and safe city projects can use storage virtualization. The Pingan City project involves the compatibility requirements of new and old storage devices. Using virtualized storage and high-speed networks can solve the storage problem of data in heterogeneous storage device environments, achieving the purpose of saving storage space and avoiding the adjustment of a large number of application architectures. Program reprogramming and modification. Video recording is stored in the entire storage pool. It does not need to consider which specific storage devices are deployed on specific storage devices. It does not need to consider whether the capacity and performance of specific storage devices meet application requirements. It does not need to consider how the data security of a certain storage device is guaranteed. . A strong storage network ensures the read and write bandwidth requirements of the entire storage pool for the application. Second, virtualized storage must match server virtualization to achieve the best performance of a virtual data center, and server computing performance increases very quickly. The earliest virtualization technology is aimed at the effective use of computing resources. Video monitoring applications and video recording storage are the relationship between computing and storage. If some devices such as video-dedicated IP-SAN devices combine computing and storage, they can't be virtualized. There are no problems with standard PC servers and third-party open networked storage virtualization. Finally, storage virtualization requires IT resource management tools for the overall management of physical devices and virtual devices. Virtual servers, virtual data volumes, and so on need to determine the specific location, path, and performance status, fault status, and so on, otherwise it cannot be an effective resource. Regular maintenance of management and uninterrupted production. Therefore, application-level management platforms must be based on IT infrastructure-level IT resource management tools. In fact, under the concept of private cloud, virtualized storage can actually consider applications in the same storage device, because in a third-party open storage device, you can basically use hierarchical storage technology, that is, different types of the same storage device configuration. Hard drives such as: SSDs, SAS disks, fiber disks, SATA disks, allocate storage for different applications to disks at different speeds. Cooperate with performance detection and resource scheduling tools to make appropriate adjustments to hotspot applications to achieve automatic balancing of application loads and to fully utilize the performance resources of the device. This video surveillance system at an airport in the west has been applied. In addition, there is a virtual storage model that utilizes a large-scale single file system video surveillance system that can scale horizontally. This requires video surveillance applications to be specifically developed and adjusted for specific devices to accommodate such storage. use. Such a single file system is stored in its internal data slice, and then mirrored, and then saved in different storage locations to meet the data security requirements, while the application workstations in the file access, the system can be in the specific user's closest distance Or the location of the path can be assembled as soon as possible to form a file for the user to use, but this method requires the video surveillance application to re-adjust the architecture and programming to match the advantages of the storage device itself. This is a video surveillance storage virtualization application method based on the public cloud architecture. It is believed that corresponding applications will be available in the near future. Storage virtualization is not a goal but a means. The purpose of video surveillance is video real-time monitoring and large-scale storage of video surveillance video calls, as well as the analysis and excavation of large-scale video surveillance video and historical data accumulation, classification and statistics. In order to maximize the role of security information data. Storage virtualization is just a means to optimize storage, improve storage performance, facilitate management, and improve system availability during the implementation process. When planning and designing the system, it is necessary to consider many aspects from the user's needs and the application environment. It is important to remember not to put the cart before the horse for virtualization. Vertical Glass Washing Machine
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I mentioned storage virtualization before talking about the IT infrastructure in the article. So, what is storage virtualization? How does storage virtualization apply to video surveillance? Virtualization technology is a method of provisioning computing resources. It will be different. Layers - hardware, software, data, networking, storage - isolated. The advantage of virtualization is that it runs exactly like a physical machine, and end users do not feel the difference. Running multiple virtual machines on the same physical machine can save hardware, data center space, and power consumption.