Users who work in a local area network (LAN) environment often use the network to print materials and access files. For various reasons, the speed of network access may become abnormal, at which point we often mistakenly believe that the cause of the reduced network speed could be a bottleneck in some of the network devices, such as the network card, switch, or hub. In reality, the biggest factor affecting network speed is the speed of the server's hard drive. Therefore, properly configuring the server's hard drive in the LAN can greatly improve the overall network performance. Typically, when setting up the hard drive, we need to consider the following factors: