What is the difference between nas hard drive and ordinary hard drive?

The difference between nas hard drive and ordinary hard drive: 1. nas is designed according to the requirements of enterprise-level environment, based on 7 days * 24 hours of working time, while ordinary hard drives are designed based on 5 days * 8 hours Working hours are the basis; 2. NAS hard disk adds a new transmission mode, "uninterrupted transmission mode", which can ensure that any terminal can read and write at any time 24 hours a day, which ordinary hard disks cannot do; 3. NAS hard disk It only requires 8W power consumption when running, while ordinary mechanical hard drives require about 14W power consumption when running; 4. Prices are different, NAS hard drives are more expensive than ordinary hard drives.

The operating system of this tutorial: windows10 system, java version 19.0.1, DELL G3 computer.

Normally, in daily use, it is difficult for us to find any difference in the use of various mechanical hard drives. If there is any difference, it is actually the difference in comprehensive performance of stability and reliability.

In fact, most hard drive failure repairs are caused by physical damage or stuck, resulting in bad sectors and abnormal use, and manufacturers divide hard drives into so many models. Because different models are specially optimized for different usage scenarios, people with different needs can purchase suitable hard drives.

Ordinary hard drives are usually designed to work 8*5 hours. If this kind of hard drive is used in monitoring systems, servers, and home storage centers to run 24 hours a day, it will speed up. Aging increases the failure rate. When using a dedicated hard disk, the read and write failures are reduced to less than 6%. This is the benefit of targeted optimization.

The purple disk and the red disk are also working 24/7. Why is the former not recommended for use on NAS and DAS?

Because although the purple disk, which is a dedicated disk for monitoring, is optimized for long-term uninterrupted writing, in the use environment of NAS and DAS, writing and reading are Fetch, copy and various array modes run simultaneously. The purple disk is only optimized for writing and cannot guarantee that it can maintain 7*24 hours of operation in other functions.

So how to distinguish NAS dedicated hard drives from ordinary computer hard drives? what differences are there?

1. Different working hours

The working hours of each hard disk are different. The design of the ordinary computer hard disk we usually use is based on the working hours of 5*8. This 5* 8 means that an ordinary computer hard drive works 8 hours a day and 5 days a week.

The NAS dedicated hard disk is designed in accordance with the requirements of the enterprise-level environment. Based on 7*24 working hours, the working time of the hard disk is to work continuously 24 hours a day and 7 days a week. .

In order to meet various strict requirements, special hard drives need to operate continuously all year round. Many hard drives used in enterprise servers have to be used from the first time they are powered on until they are retired.

2. Different transmission modes

For traditional computer hard drives, dedicated hard drives not only adopt the transmission mode of traditional PC hard drives, but also add a brand new transmission mode, "no "Intermittent transmission mode" ensures that any terminal can read and write at any time 24 hours a day, which is a feature that ordinary hard drives cannot achieve.

3. Differences in operating power consumption and heat dissipation

Ordinary mechanical hard disks require about 14W of power to operate, while dedicated hard disks only require 8W to operate. This subtle difference may not be reflected in a single hard disk, but when applied to a server, 75% of the operating power consumption will be converted into heat energy. This reduction in power consumption is not only a reduction in operating power consumption, but also The important thing is to keep the server running stably with lower load and lower temperature.

In a server, when 20 hard disks are installed, ordinary hard disks require 20*14=280W, while dedicated hard disks require 20*8=160W, which reduces power consumption by 55% and greatly reduces power consumption. Generate heat and relieve heat dissipation pressure.

To sum up, it can be seen that dedicated hard drives perform better than ordinary hard drives in terms of performance and energy consumption. The price is naturally expensive, usually tens or hundreds of dollars more.

In fact, for ordinary office or daily home use, ordinary computer hard drives can fully meet the needs. But if it is used in hard disk cabinets, NAS, and servers, don't skimp on the budget. After all, hard disks are valuable and data is priceless.

The above is the detailed content of What is the difference between nas hard drive and ordinary hard drive?. For more information, please follow other related articles on the PHP Chinese website!