机械硬盘

随着CPU运算速度的不断加快，传统的机械硬盘的读写速度的瓶颈效应越来越明显，进而导致了固态硬盘的发展。

As the accelerating speed of CPU operation , traditional mechanical hard disk which is reading and writing slowly have become the bottleneck of compute , which result in the development of solid state disk .

固态硬盘（SSD）与传统的机械硬盘相比，具有低延时，低能耗，高吞吐率，高带宽等众多优势。

Solid State Disk , compared with Hard Drive Disk , has a low delay , low energy consumption , high through-put , high bandwidth , and many other advantages .

而NAND+DRAM的组合则可以在价格与常规DRAM+机械式硬盘系统相差无几的条件下，实现接近安装了SSD硬盘系统的性能。

A well-designed NAND / DRAM combination brings SSD-like performance to a system at little or no price increase over a standard system based on the conventional DRAM-plus-HDD platform .

尽管目前有些企业开始采用SSD硬盘，但传统的机械式硬盘由于容量高价格低，因此仍然占据着企业级市场的主流地位。

Despite the growing adoption of Solid State Drives , traditional hard drives are still used as the primary means of storage due to their high capacities and low costs .

高速的微小型旋转机械（如硬盘驱动器）对动态性能有非常高的要求。

A micro-rotating machinery such as hard disk drive ( HDD ) requires high efficiency and robust dynamics in high operating speed .

将磁力轴承应用于硬盘的支承，完全消除了轴承与硬盘转子的机械接触，使硬盘具有其它轴承支承的硬盘无法企及的优点。

Applying AMB to the support of HDD ( hard disk drive ), which can avoid the contact of bearing and HDD rotor , it has a lot of advantages in comparison with other bearing types .

它是一种以半导体芯片作为存储介质的存储器。由于不包含机械部件，它的存取速度较传统机械硬盘有了很大的提高。

It is a kind of storage device using semiconductor device as storage medium . Without the mechanical structure of traditional hard disk , it becomes much faster .