By Raymond Shadman, President [email protected] 310-370-9500 x1 The Top Reasons to Buy Dahua Security Cameras, DVRs, NVRs in 2020 5-year warranty (when you buy from Custom Video Security or any other 4-star authorized dealer) on cameras, recorders, decoders, accessories, and transmission products. Hard Drives 3 years. Monitors 1 year. 1-year advance replacement warranty when you buy from Custom Video Security. Direct tech support from Dahua to low-voltage installers and to the end-user. Very wide product line including: ePoE (converts coax lines to use IP cameras at the lowest cost in the industry; or triples the distance of IP without any need for repeaters/extenders). Starlight cameras see color at nighttime with minimal ambient lighting. Video: https://youtu.be/NaFHmwXI6Zk?t=5. Identify skin color, hair color, clothing color, vehicle color, etc. So much more effective than traditional IR cameras. The levels of Dahua’s starlight are attached. I recommend Starlight+ if you may require viewing in very dark or pitch-black scenes. Or Night Color if you don’t need or don’t want infrared. Night Color cameras have no infrared, which means you can’t use them in pitch-black darkness, but they see at nighttime with minimal ambient lighting like it’s daytime. They have the highest nighttime performance […]
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First, check the VMS’s minimum hardware requirements based on frame rate, bit rate, and expected motion hours. The CPU and GPU you choose should have a higher benchmark score than what is recommended by the VMS calculator. Then, design a server with as many points of redundancy as possible: double or triple-redundant power supply (will be very loud, so ideal for a private equipment room) and dedicated RAID card with BBU with hot spare(s) are required. The server’s storage devices should support the use of each partition, e.g. RAID1 SSDs or SAS drives for the OS, SAS drives for short-term recording, and either SAS or enterprise-grade SATA for long-term archiving. Choose a chassis that is certified for the OS, RAM that is certified for the motherboard (or else Supermicro and other motherboard manufacturers won’t support you), and drives that are compatible with the RAID card. Choose a RAID card that can support external JBOD storage, if future expansion is required. Cloud-based recording/archiving and/or edge storage on devices are additional optional redundancies. My company has been building custom NVR and storage solutions in various form factors (cube, 2U, 3U, 4U, 8U) for all types of organizations including government agencies, museums, police/fire stations, […]
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