Since 2012, the big data has mounted the stage of The Times, becoming the star of storage industry and even the entire IT industry. Both for the storage industry manufacturers and users, in cloud computing, virtualization, mobile interconnection under the influence of IT technology, such as how to manage and protect the rapid growth of data become a difficult challenge for the IT department. And the developing trend of storage industry from the first half of this year, including cloud storage of new technology in the industry get a good promotion, government, health, security applications for purchase and storage products, has become the leader to promote the development of the industry.
Security industry development puts forward new requirements to store
And historically, security is not considered can bring high return on investment, but a cost. Especially at home, video data is one of the important evidence, after verification, justice, peace city in the bank, video image storage time in 1 to 3 months or even half a year. With hd monitor era, a clearer picture means greater storage capacity, a larger number of devices, more room area, higher cooling costs, more expensive cost of operations. So in addition to explore how to apply monitoring to achieve more value, we should focus on how to reduce the total cost of ownership of video monitoring system. Security monitoring the new demand for storage can simply summed up as "high five".
High capacity: Gao Qinghua surge in storage capacity, need is stable and reliable mass storage, improve the system capacity: by SAS extension cascading multiple JBOD, support 3 TB, 4 TB hard disk, enhance RAID robustness; Use cluster storage system, enhance the capacity of storage system with elastic extension, make up for a lack of single machine reliability;
High performance: high-definition monitor on storage total bandwidth demand is higher, and storage performance tuning based on the characteristics of monitoring: performance optimization: high clearly the code flow high concurrent data flow, different mode (write and read, delete and write, RAID rebuild) IO performance optimization, NAS performance optimization; Application: NVR software embedded application processing ability, after reasonable distribution system resources;
Efficient: mass storage deployment is behind the use of large amounts of energy consumption, high cost, monitoring equipment should be low power design: in the era of DVR, monitor vendor through hard disk could reduce power consumption, prolong life, while the network storage can use MAID to achieve energy saving, but the MAID is more suitable for file backup environment; Considering the monitoring application is 7 * 24 uninterrupted, choose high conversion efficiency of power supply (80 plus power supply or dc power supply) is more valuable, in does not affect the application under the condition of reducing energy consumption;
High density: monitoring to store the most basic requirement is to reduce the cost of TB, each slot costs: high-definition monitor became popular, the original 3 under-16 disk device, a single storage capacity is limited, high disk storage can support more camera; More than 4 u24 plate of a high-density storage, can effectively reduce the cost of each slot, raise a single storage capacity and save the rack space;
High applicable: storage must monitor the actual demand for design, solve the customer pain points to survive: file fragments too much cause performance degradation, the file system when the power is vulnerable, streaming media direct writing, efficient index structure; Improve the NVR embedded application convenience and compatibility, supports Windows/Linux software, provide with external monitoring subsystem interface API, achieve high efficiency analysis, rapid positioning in huge amounts of data;
UIT of SV1000G2, for example, from product design through the "high five", using the latest end-to-end SAS6Gb technology, Intel SandyBridge platform to improve performance, 4 u24/4 u36 high-density design, support 3 TB hard drive, improve the storage capacity of a single set of system, reduce the cost of each slot; Applicable conversion efficiency up to 90% of the 80 plus power, can save more energy, reduce system operating costs; With structure optimization can be more closely integrated monitoring system.
The monitoring system of network storage equipment flowers
Storage devices depending on the organization and the network node and it is concluded that different solutions, and can be roughly divided into digital video recorder (DVR), direct attached storage device (DAS) and network attached storage (NAS) device.
His digital video recorder (DVR)
Monolithic digital video recorder DVR is running high quality digital video monitoring system in the simplest and the most economical way. It is not only the body slender, collocation also is very light, only need to add the camera can be normal operation. DVR is most suited to don't need to also do not have the resources to manage the more complex network monitoring solution. Because the DVR system operation usually easy to use, the scene of the operator can easily review at any time with all the videos stored video, as well as routine maintenance and data management. In addition, it is also a node on the network installation equipment limited content minimum.
His direct storage device (DAS)
As the name, as shown in the DAS is to put the storage device directly link to the DVR or NDVR. It can within the attached (disk drive loading inside the DVR), can also through a variety of RAID array of external storage interconnect through SCSI, USB external connection or hookup adapter card. Although the cost is higher, and bulky and big RAID disk array, but external DAS can provide storage capacity and the ability to expand DVR only look up. At the same time, external DAS casing convenient also provide more than DVR built-in type disk drive hard drive sockets digits. If you need more disk drives, external DAS chassis can increase the available storage capacity in string chain mode. To be sure, this kind of storage network Settings node also lets users through the network TCP/IP architecture for video video access.
Cardiac network storage (NAS) device
NAS network server, shaped like a miniature its general help files through the TCP/IP in the Ethernet network storage, and use the commonly used NFS or CIFS file level communication protocol. NAS deployment and maintenance of the common IP and Ethernet communication protocol, only a handful of the IT staff to manage the NAS. As with external case of DAS, NAS include multiple disk drive slot, let users can choose the most to maintain a balance between efficiency, capacity and fault tolerance of the configuration of RAID drives. Even need more capacity, NAS can also with the addition of an external storage device module implementation. Objectively speaking, this kind of equipment in the arrangement of the network node is all the more a job.
Conclusion:
With the high-speed development of security monitoring, people are not satisfied with the "visible", but the pursuit of "see clearly", higher requirement of monitor image quality led Gao Qinghua process speed up; Not content to "see", but the pursuit of "see", this led to the requirement of monitoring efficiency intelligence to use field, thus the original artificial, after monitoring system into active prevention analysis system for real-time monitoring. Gao Qinghua, intelligent video monitoring requires storage technology on capacity, performance, application and suitability to do more improvement: high-definition monitor need greater transmission bandwidth, higher capacity requirements, storage products must have a higher capacity and performance; Storage technology to monitor application of closer union, to be able to design for a specific application.
