How to Choose the Right HDD for Your Digital Surveillance System


These days’ video surveillance systems are widely in use to improve on physical security and safety of a business enterprise, government institutions, traffic system, schools, apartment buildings and even private homes.

Since the year 1940, when the surveillance technology was first introduced, it has made a quick shift from very expensive analogue to more affordable digital security system. With increased demand of advanced closed-circuit television (CCTV) systems, the need for a specialized surveillance HDDs having more storage capacity and specific design features was also felt.

What HDD I need for My Surveillance System?

HDD for Video Surveillance System
Hard drive

Today’s surveillance system run 24/7, they are optimized for numerous continuous sequential write operations onto the HDD from multiple audio and visual sources. They deliver a wide-range of features such as streaming video from multiple cameras, high-resolution image quality, on demand video playback and video archiving with ultra-fast data access. To understand which HDD is compatible for any particular feature and application, you first need to be familiar with the recording system being used in your surveillance system in conjunction with newer technologies, such as smart sensors and biometrics.

HDD Compatible to Different Surveillance System

Surveillance drives fall under three distinct classes: solid state, enterprise class and AV-class. Irrespective of their different uses, the maximum of the surveillance systems used worldwide fall into one of the six types, these include:

  • The standard one is digital video recorder (DVR) that records video from one or multiple cameras connected. It uses up to six hard drives that are housed in the device itself. DVR is ideal choice for small to mid-sized businesses or home users. It uses AV-class drives that ensure 24×7 reliability, ease of use and consume relatively less power.
  • PC-based SDVR systems integrate both analog and digital video source and provide search features and local playback on PC. The system support reporting features and remote management. Solid state and AV-class storage both are commonly used for these systems.
  • Video management systems (VMS) and network video recorders (NVRs) are used for active analysis for the camera footage, such as license plate recognition, people counting and monitoring of virtual boundaries. These systems are widely used by governments and also useful for airports, manufacturing plants, and commercial buildings. Enterprise-class as well as AV-class storage is best suited for these applications.
  • Mobile SDVR systems are designed specifically for police cars, trains, airlines, buses, armored trucks, as well as military vessels and vehicles. Extreme temperature and high-motion environment in these transportation systems cause disk failure and thus solid state storage proved best solution.
  • Finally, the USB-based external drives are used as external drives with AV-class storage inside. As it’s an external solution and its storage can be scaled as the need arises.

So, regardless of your surveillance arena, whether its casino, banking, commercial, retail, government, law enforcement or corporate, surveillance based hard drives are the base behind superior performance, enhanced reliability and added capacity of a surveillance system and its various applications. Contact DVR Unlimited or HDSTOR for more information!