Shulou(Shulou.com)06/03 Report--

What hard disk do you use to keep data for a long time? In view of this problem, this article introduces the corresponding analysis and answers in detail, hoping to help more partners who want to solve this problem to find a more simple and feasible way.

Mechanical hard disk for long-term preservation of data, characteristics of mechanical hard disk:

1. Data storage security of mechanical hard disk

2. The data of the machine hard disk uses the magnetic pole on the track as the storage medium, so the data state is stable and not easy to lose.

3. Even if the disk is seriously damaged, part of the data can be recovered.

Comparison of advantages and disadvantages between mechanical hard disk and solid-state hard disk

1. Shock resistance: mechanical hard drives are disk-type, and the data is stored in the disk sector. The solid-state hard drive is made of flash memory particles (that is, memory, MP3, U disk and other storage media), so there are no mechanical parts inside the SSD solid-state disk, so that normal use will not be affected even in the case of high-speed movement or even accompanied by flip tilt, and the possibility of data loss can be minimized in the event of collision and shock. Compared with mechanical hard drives, hardening has an absolute advantage.

2, data storage speed: the speed of the mechanical hard disk is about 120MB, the speed of the solid-state disk of the SATA protocol is about 500MB, the speed of the solid-state disk of the SMagne NVMe protocol (PCIe 3.0 × 2) is about 1800MB, the speed of the solid-state disk of the SMagne NVMe protocol (PCIe 3.0 × 4) is about 3500MB/S.

3. Power consumption: the power consumption of solid state disk is also lower than that of mechanical hard disk.

Weight: solid state drives are lighter in weight, 20-30 grams lighter than conventional 1.8-inch hard drives.

5. Noise: because the hardening belongs to no mechanical parts and flash memory chip, it has the characteristics of low heat generation and fast heat dissipation, and there is no mechanical motor and fan, and the working noise value is 0 decibels. Mechanical hard drives are much inferior.

6. Price: as of 2020-4-11, the brand 512GB solid-state disk is about 350 yuan. The price of 1TB's mechanical hard drive is only about 320. Solid-state hard drives are more expensive and cheaper than mechanical hard drives.

7. Capacity: the maximum capacity of the solid state disk is 100TB 3.5in.

8. Service life: SLC particles have a reading and writing life of only 100000 times, low-cost MLC particles have a reading and writing life of only 10,000 times, TLC particles have a reading and writing life of about 3000 times, and the cheapest QLC particles have a reading and writing life of only 400 times. So from this point of view, mechanical hard drives have a longer life than solid-state drives. However, the mechanical hard disk will wear out with the normal wear and tear of the disk, and the accidental power outage causes the head not to hover in the parking area, causing damage to the disk, which may be damaged due to other reasons, so the life of the mechanical hard disk is not necessarily longer than that of the solid state hard disk.

This is the answer to the question about what hard disk to use to save data for a long time. I hope the above content can be of some help to you. If you still have a lot of doubts to solve, you can follow the industry information channel to learn more about it.

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