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📜  SSD |固态硬盘

📅  最后修改于: 2020-11-07 09:27:43             🧑  作者: Mango

什么是SSD

SSD是非易失性存储设备，代表固态驱动器。 SSD会将数据存储在闪存芯片上，即使电源关闭也仍将数据保持在永久状态。

有时，此存储设备也称为固态磁盘或固态设备。与机电驱动器相比，SSD具有较低的延迟，并且可以快速访问。这些存储设备将数据存储在半导体单元中。

与HDD(硬盘驱动器)不同，SSD没有任何活动部件。这就是为什么它们被称为固态驱动器。

SSD类型

以下是几种类型的固态驱动器(SSD)：

  • SATA
  • 2
  • PCIe
  • NVMe

SSD和HDD之间的区别

SSD HDD
1. SSD is an abbreviation of Solid-State Drive. 1. HDD is an abbreviation of Hard Disk Drive.
2. The time for reading and writing the data in SSD is shorter. 2. The time for reading and writing the data in HDD is longer.
3. There is a lower latency in SSDs. 3. There is a higher latency in HDDs.
4. Solid State Drives supports the more operations of input/output per second. 4. Whereas, Hard Disk Drives supports fewer operations.
5. Because the SSDs do not have a rotating disk and motor, the weight of these storage devices is light. 5. The weight of HDDs is heavy.
6. In the SSDs, the transfer of data is not sequential 6. In the HDDs, the transfer of data is sequential.
7. This storage device does not produce noise. 7. Due to the mechanical movements, HDDs produce noise.
8. The size of the SSD is more compact. 8. The size of the HDD devices is larger.
9. As compared to Hard Disk Drives, Solid State Drives are more expensive. 9. The devices of Hard Disk Drives are cheaper.
10. SSDs are safe from the magnetic effect. 10. In HDDs, magnets can remove the data.
11. SDDs generates little heat because there is no moving part included. 11. HDD devices generate more heat because of the mechanical part.
12. It consumes less power than the HDDs. 12. HDDs require more power to keep all the parts moving.
13. The average boot-up time of OS is 10 to 13 seconds. 13. The average boot-up time of OS is 30 to 40 seconds.
14. The file opening speed of SSD is 30% faster than the HDD. 14. The file opening speed of HDDs is slightly slower.
15. As there are no moving parts, so there is no vibration. 15. Due to the spinning of platters may results in vibration.

固态硬盘(SSD)的优势

以下是固态硬盘的优点：

  • SSD消耗的功率更少。
  • 读取和写入数据的速度更快。
  • SSD的主要优点是它产生的噪音较小，因为SSD是非机械的。
  • 由于SSD的高速度，文件可以快速传输。

固态硬盘(SSD)的缺点

以下是固态硬盘的缺点或局限性：

  • 成本是固态硬盘的最大缺点，因为它们很昂贵。
  • 无法恢复丢失的数据。
  • SSD的存储容量也较小。