The demand for efficient Video storage infrastructure for surveillance needs is booming and shows no sign to slow down in near future. So, the talk now not only shifts towards capacity, but also circles around cost effective storage, along with providing the most control over the data. Here the need is not only storage, but also an efficient network which is robust enough to support the said storage architecture.
Before going deep into it, let us know on what exactly has to be stored?
Many large enterprises are facing one sole issue and that’s network architecture support. This is due to the fact that their existing networks were not initially designed with IP video cameras in mind. Hmm…..may be VOIP phones, perhaps; but not the IP cameras.
With 1080P cameras using 2-3MB and 20MP cameras taking 20-30MB of network stream, it does not take many video cameras to wreck havoc on the existing network. This is where an exclusive network in parallel to the current one and dedicated to the cameras is needed—–So, investment will be needed.
And remember before investing on the project, do keep in mind that scalability factor is also built into the formula, because in future, chances may arise to include more cameras into project. So, while planning to lay a new network, do keep the future needs in your mind and then start building the architecture.
Need to store video for long is also needed- Nowadays, governments and businesses are strictly following prevailing retention laws. For instance, all schools in Texas are following SB507 law on a strict note. The said law mandates that special education classrooms must record audio and video for period of 180 days. No special funding was extended to offset this requirement.
Texas schools are not the only ones which are facing longer retention mandates. Storing surveillance videos from interview and interrogation rooms for longer duration is seen in police departments. The videos are retained for a period of 999 days in general. In a military detention center, the videos are retained for up to 7 years. All financial institutions including Banks & ATMs will need a 180 day surveillance video retention. For organizations that face significant litigation risk such as food or chemical firms will go for a 6 month -5 years period of video surveillance storage.
Also one should keep in mind the analytic capabilities within the stored footage. More and more corporations and organizations are utilizing the video analytics as they do their Business Intelligence software, which requires an even longer period of time in order to view that data. So, devise a system which supports the high processing needs of analytics.
Durability of recording servers- If a video server doesn’t have the ability to manage 500 Mbps throughput; it really has no business being called as an enterprise video server. For instance, let us suppose they are 125 cams with 1080P cameras deployed in a premise with 15fps. Regardless of the retention time, the necessary bandwidth stays consistent at 414 mbps. For just 30 day storage, the capacity need will be approximately 67TB with RAID 5, or 84TB of total storage. Apart from the capacity, the focus should also be equally put on bandwidth and throughput capabilities within the server.
Lastly, durability of the server also turns equally important. The server could very well have an on-site warranty. However, if the unit is crashing every other day, then the “included” warranty ends up costing money for labor and possibly the reputation with the customer which will probably result in a liability to the business or the integrator.
Therefore, building video surveillance infrastructure with scalable storage, supportive bandwidth and on a durable note will ensure success with video surveillance recording. Not only for today…….but also five years from today and beyond.