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Some unique technologies include strobe deterrent on 4k HD security cameras, summary playback and high speed playback for DVRs. Smart phone and tablet high definition reproduction and analytics for processing video before and after recording. 4k surveillance DVRS come in many different shapes and sizes. From a very low cost single hard drive desktop models that I can record and playback and UHD resolutions to complete rackmount solutions with multilevel Jbod Storage.
The next generation of 4K over coaxial cable is now underway with the EX-SDI. This new format will allow for much larger been with at greater distances. Currently the HD-SDI Solutions offer the very best in picture quality and performance but do have a limitation of distance because of its large throughput. EX-SDI Was designed with the idea of increasing resolutions up to 4K (8mp) over coax and greater flexibility including wiring over UTP.
4K CCTV cameras design for outdoor use and long-range viewing such as the one pictured above are now commonplace in the video surveillance market.
But how about recording? How about storage for these new megapixel hard drive destroyers?
Solid-state hard drive testing is vital to today’s surveillance systems which utilize an extensive amount of storage. Utilizing solid-state technology for the operating system partition can dramatically increase video processing speeds and analytic capabilities.
Here is a fantastic blog post on solid-state drive testing using different models from Samsung and Intel: conclusion:
As we can see from the results, Intel S3500 is an enterprise ready drive which works reliably out of the box and we would recommend it to everyone who needs a reliable, high performance drive which isn’t very expensive. On the other hand Samsung 840 Pro looks to be doing pretty good with the disk cache disabled in the fsync test, and in the Postgres test it even managed to pass with disk cache enabled. I would still not recommend it on mission critical databases, but if you have no choice, at least disable disk cache (and test performance). I’m not exactly sure what to say about Intel 520 except that this test showed all the concerns that we had, that it is not reliable for production and that it should probably only be used in consumer devices.
Courtesy of : http://blog.nordeus.com/dev-ops/power-failure-testing-with-ssds.htm