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What is a “Surveillance” or “NAS” Hard Drive?

A Hard Drive is a storage device that is installed internally in a computer that stores all the data related to the user’s files, installed software, and operating system. Capacity isn’t the only factor a hard drive is required by a system; there are other significant factors with differentiates one hard drive from another based on “Surveillance” or “NAC.” Here is every other additional information you should know about.

Why does a Computer need a Hard Drive?

A hard drive is required for any installation you need to do on your PC. While you download something or install a software, it is permanently stored on your hard drive until removed. If we take a peek of our daily life, we do a lot of activities such as a watch or listen to downloaded media, install software, make documents etc, and a hard drive is into action throughout.

Let’s take a look at what makes one hard drive different from another.

Surveillance Drive

Recording Video on a 24/7 basis by the security cameras require Surveillance Drive. It uses a Network Video Recorder (NVR) whose job is to write all the data of surveillance drive’s activity.

The Surveillance Drive do not perform reading and writing for activities like gaming. Instead, they save data. Writing is a thorough function performed by these kinds of disks, but on the other hand, reading is not much of an action designed for these.

NAS Drive

Recording Video on a 24/7 basis by the security cameras require Surveillance Drive. It uses a Network Video Recorder (NVR) whose job is to write all the data of surveillance drive’s activity.

The Surveillance Drive do not perform reading and writing for activities like gaming. Instead, they save data. Writing is a thorough function performed by these kinds of disks, but on the other hand, reading is not much of an action designed for these.

Pros of NAS

  1. Merged Security: NAS centralises data protection being a single system for file storage.
  2. Simplified Architecture: It consist of a very simplified management. For example, NAS does not require any changes to your existing network.
  3. Inexpensive: It is an affordable solution, however, price may vary according to the size.

Cons of NAS

  1. Limited Flexibility: Too many NAS devices working together can lead to issues such as crash down.
  2. Slow Speed: High performance applications expect good speed, whereas, NAS does not meet those requirements.
  3. Network Dependency: NAS devices work with LAN (Local Area Network), thus, it may get effected due to congestion or traffic.

Which Drives Should you Prefer to Buy?

Hard Drives work the same and do not have a lot of difference in it until or unless there a different handy for each system. People who spend a lot of hours working and have significant RAID Configurations, you might want to opt for NAS Drives.

Source  :-  https://lunorton.com/what-is-a-surveillance-or-nas-hard-drive/

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Written by elina john

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