Several new methods to ensure read and write stability of mobile hard disks

Mobile hard drives are gradually becoming part of our daily work and study thanks to their convenient plugging and storage capacity advantages. However, when using mobile hard drives, if you do not have some proper skills, the stability of a mobile hard disk during read/write operations for a long time will be threatened to some extent. In order to keep the mobile hard drive in a stable State and ensure the success rate of read/write operations, this article provides the following usage methods, hoping to help you make good use of the mobile hard drive stably!

Avoid using USB extended Cable

In actual use of mobile hard disks, sometimes considering the placement of computers, many people often choose USB extended cables to connect mobile hard disks and computers, the extended cable is a potential threat to the stability of mobile hard disks. This is because the use of the extended cable will not only increase the length of the connection cable, but also lead to data transmission signal attenuation, resulting in data transmission stability.

On the other hand, once we use a poor-quality brand USB extended cable, it is difficult for the USB interface of the mobile hard disk to match the interface of the USB extended cable in size, it is often too tight or too loose; if the interface is too tight, it will affect the normal plugging operation, and a large number of plugging operations will cause scratches on the surface of the USB port of the mobile hard disk, after a long time, the port may be rusted, which will eventually affect the reliability of the cable connection. If the interface is too loose, it will not only be prone to unreliable contact, in addition, the mobile hard disk interface may suddenly fall off from the cable connector during work, which affects the normal data transmission of the mobile hard disk.

Therefore, do not use a USB extended cable for transit connections when you have to. Even if you want to use a extended cable, you must also choose a USB extended cable with a positive brand, good quality, and a length not too long, make sure that the USB interface standard of the extended cable is consistent with that of the mobile hard disk.

Remove mobile hard drive in time

Many people do not need to move the hard disk to save trouble. Once they connect it to the computer, they do not know how to remove it from the computer's USB port. On the surface, this is indeed convenient and easy-to-use, but it does not know that the mobile hard disk is in "zero distance" contact with the computer at any time, and the computer may unconsciously threaten the stability of the mobile hard disk. Considering that most computers currently use Windows 2000 or Windows XP, once these operating systems enable the sleep memory function, after that, when we restore the function to the normal running status of the system, the mobile hard disk that is always connected to the computer may be affected by the computer ", once the impact frequency is high, the response sensitivity of the mobile hard drive will decrease. In severe cases, the mobile hard drive will experience transient "shock.

In addition, when our computer is always on the internet, viruses or Trojans from the network may attack the mobile hard disk to a certain extent through the USB port of the computer, this affects the stable performance of mobile hard disks. Therefore, if you do not need to use a mobile hard disk for a long time, we must remember to remove it from the computer. This not only ensures that the mobile hard disk is not threatened by the computer, it can also free up limited USB ports to facilitate the normal operation of other USB devices.

Reduces scanning for mobile hard disks

Generally, when a mobile hard disk is inserted into the USB port of the computer, Windows scans Its USB interface every 1 ms, in order to detect the connection status between the mobile hard disk and the computer at any time, and this frequent scanning activity often consumes a lot of system resources. If the computer system resources connected to the mobile hard disk are not very rich, this frequent scan operation will have a great impact on the normal operation of the mobile hard disk, it can even cause data read and write failures on the mobile hard disk. In order to save system resources and improve the stability of the mobile hard disk, we should try to reduce the scanning frequency of the mobile hard disk and extend the system's scanning interval for the mobile hard disk; the following describes how to extend the scan interval of a mobile hard disk by modifying the key value of the registry:

Expand the "Start"/"run" project one by one with the mouse, open the run text box, enter the "Regedit" command, and click the Enter key to enter the system registry editing window;

Next, move the cursor to the HKEY_LOCAL_MACHINE \ SYSTEM \ CurrentControlSet \ Control \ class \ {36fc9e60-c465-11cf-8056-444553540000} registry branch, as shown in 1;

On the right-side display area of the corresponding {36fc9e60-c465-11cf-8056-444553540000} sub-key, check whether the "idleenable" dual-byte value exists. If it cannot be found, right-click the blank position, in the pop-up context menu, execute the "new"/"DWORD Value" command in sequence, and then set the new key value name to "idleenable ";

Next, double-click the created "idleenable" key value, enter the number "1" in the subsequent Value Setting window, and click "OK, refresh the system registry to extend the scan interval of the system to 5 ms, which can effectively save system resources and indirectly ensure read and write stability of the mobile hard disk.

Difficult to ignore plugging details

Although the USB-based mobile hard drive supports hot plugging, we absolutely cannot do whatever we want, because improper plugging is especially easy to reduce the working stability of the mobile hard drive. In order to ensure the transmission performance of the mobile hard disk is always stable, we must pay attention to the following plugging details:

First, make sure that the mobile hard disk cannot be plugged in during data reading and writing. For example, when reading and writing data on a mobile hard disk, it is easy to damage all the information in the mobile hard disk. At this time, we can continue to use the mobile hard disk only by reformatting it, in severe cases, the mobile hard drive will be decommissioned directly.

Note that the plugging operation on the mobile hard disk cannot be too frequent, because frequent plugging will cause the interface of the mobile hard disk to wear out, after a long period of time, the mobile hard drive and the USB port of the computer will not be in close contact. In the future, as long as the external force slightly interferes with the USB connection cable of the mobile hard drive, may cause the USB connection cable to slide from the USB port of the computer. Besides, when we insert the mobile hard disk into the USB port of the computer, in Windows, it takes some time to identify the existence of the mobile hard disk. If we just inserted the mobile hard disk and immediately pulled it out, it may also lead to system operation errors or even crashes, therefore, the plugging operation must be at an interval of more than five seconds.

In addition, we also need to remind you that when you insert a mobile hard disk into a computer, do not use brute force. Once you feel that the insertion Operation is blocked, you must not force the insertion, otherwise, it is easy to damage the USB interface. In this case, check whether there is any blockage in the interface. If not, adjust the insertion angle and direction.

Beware of external interference with mobile hard drives

If mobile hard disks and other USB devices are inserted in the computer, the computer ports inserted by the device may be suspended if they are illegally plugged in to other USB devices, in addition, other USB ports in the same hub as the port may also be affected, resulting in a stop response. As a result, the working stability of the mobile hard disk will be affected. To prevent interference of other USB devices on the performance of the mobile hard drive, we can set the following settings to improve the anti-interference performance of the computer USB port:

Click Start, set, and control panel items one by one to enter the control panel window. Double-click the system project in the window to open the system attribute setting box; click the "hardware" tab in the setting box, and click the "Device Manager" button on the corresponding tab page to open the device list interface of the system;

On this page, right-click a device item and choose scan detection hardware from the shortcut menu, in this way, the Windows system can forcibly reset the USB control bus on the computer motherboard to restore the working status of the USB port to normal.

Then, click "start"/"run" command, enter the string command "Regedit" in the pop-up system run box, and click "OK, go to the registry editing page of the system;

Click the HKEY_LOCAL_MACHINE \ SYSTEM \ CurrentControlSet \ Services \ usbhub registry sub-key one by one (as shown in 2). In the displayed area on the right of the corresponding "usbhub" project, check whether the key value "disableselectivesuspend" exists. If not, right-click the blank position, right-click the "new"/"DWORD Value" command from the shortcut menu, and set the new dubyte value to "disableselectivesuspend ", double-click the key value, enter "1" in the corresponding value setting box, click "OK", and restart the computer system, in this way, even if the mobile hard drive is located at the same USB hub with other USB devices, it will not be affected by the plugging of other devices.

Pay attention to the working environment of mobile hard disks

With the gradual decline in the price of mobile hard disks, many people do not pay as much attention to the maintenance and maintenance of mobile hard disks as they used to do, place it in a remote and dark corner. However, these environments are generally poorly ventilated and have a high humidity, especially in the rainy season, the USB metal interface of the mobile hard disk is exposed directly in such an environment, which is especially prone to corrosion, thus affecting the contact performance of the mobile hard disk in the future and causing unstable Data Transmission Performance. In order to avoid this phenomenon as much as possible, we usually need to place the mobile hard disk in a dry and ventilated environment, for a long time do not need to move the hard disk to use regularly.