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Hard Drives
A hard disk drive (HDD), hard disk, hard drive, or fixed disk is an electro-mechanical data storage device that stores and retrieves digital data using magnetic storage and one or more rigid rapidly rotating platters coated with magnetic material. The platters are paired with magnetic heads, usually arranged on a moving actuator arm, which read and write data to the platter surfaces
Surveillance Hard Drives are engineered specifically for surveillance to help withstand the elevated heat fluctuations and equipment vibrations within NVR environments. An average desktop drive is built to run for only short intervals, not the harsh 24/7 always-on environment of a high-definition surveillance system. You get reliable, surveillance-class storage that’s tested for compatibility in a wide range of security systems,
ONVIF Explained: Mixing Cameras and NVRs Without Compatibility Problems
Essential Security Supplies
Learn how ONVIF works with FERN360, Dahua, TVT and UniView cameras and NVRs, including recording, analytics and mixed-brand compatibility considerations for New Zealand installers.
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Thermal vs Optical CCTV Cameras: Where Thermal Surveillance Makes Sense
Essential Security Supplies
Thermal and optical CCTV answer different questions. Thermal imaging can help detect a target through its infrared radiation, while an optical image provides visible scene detail such as clothing and faces. For NZ perimeter projects, the useful choice often combines detection with a separate visual verification path.
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NVR RAID Explained: RAID 1, RAID 5 and RAID 6 for CCTV Storage
Essential Security Supplies
NVR RAID changes how disks provide capacity and tolerate disk failure. It does not preserve every recording against deletion, recorder damage or a wider incident. NZ CCTV projects should choose the recorder's supported RAID mode alongside retention, workload, fault response and an independent evidence preservation process.
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CCTV Cybersecurity Checklist: How to Harden Cameras, NVRs and Security Networks
Essential Security Supplies
A CCTV cybersecurity checklist should cover the entire service: cameras, recorders, operator workstations, remote access and maintenance. Changing a default password is necessary where applicable, but it does not resolve an unsupported device, exposed recorder or uncontrolled administrator account. NZ installers need a documented baseline and a process for keeping it current.
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