In the daily use of the computer, it is necessary to do a good job in the maintenance and maintenance of the hard disk. Once the hard disk is damaged, the data stored on the hard disk will be lost, and it will take a lot of effort to retrieve the data, and it may even be lost forever. not coming back. Therefore, it is particularly important to regularly back up data in daily work and do a good job in the maintenance and maintenance of computer hard drives. Here, we describe in detail the daily maintenance methods of mechanical hard disks and solid-state hard disks, as well as the precautions during the use of hard disks.
Care and maintenance of mechanical hard drives
1. Do not shut down or power off suddenly when the hard disk is working
The rotation speed of the mechanical hard disk is very high, usually 5400PRM or 7200PRM per minute. If the power is turned off suddenly or the power is cut off, it may cause violent friction between the magnetic head and the disk and damage the hard disk, just like letting a car with a speed of 200 yards per hour come suddenly Brake hard and cause damage.
2. Do not restart the computer immediately after shutdown
After the computer is turned off, the mechanical hard disk will continue to rotate rapidly due to inertia, and there is no way to stop the rotation immediately. At this time, if you start the computer again, the mechanical hard disk will rotate in reverse, which will easily cause the magnetic head of the mechanical hard disk to wear out. Therefore, after the computer is turned off, do not turn it on immediately. You need to wait for about 5 seconds to let the mechanical hard disk buffer, and then press the power button to turn it on.
3. Control the hard disk temperature
The computer will continue to dissipate heat during operation, and the same is true for the hard disk, which will generate a certain amount of heat during work. If the temperature is too high or too low, the clock frequency of the crystal oscillator will change.
In addition, the temperature will also affect the normal operation of hard disk circuit components. Magnetic media may also be subject to recording errors due to thermal expansion effects. Therefore, it is necessary to pay attention to the heat dissipation performance of the chassis, control the temperature of the hard disk, and maintain good heat dissipation performance.
4. Regularly clean up junk files
During the operation of the computer, the mechanical hard disk will frequently create and delete files, resulting in many fragments. When the fragments accumulate to a certain amount, the access efficiency of the mechanical hard disk to files will decrease, which may damage the magnetic track in the long run. Therefore, we need to regularly clean up computer junk files, and use the [Disk Cleanup] function of the Windows system to regularly clean up.
5. Do not let the hard disk close to the strong magnetic field
If the mechanical hard disk is close to a strong magnetic field, there is a high probability that it will be magnetized, resulting in damage to the hard disk and loss of data. Therefore, do not let the mechanical hard disk close to speakers, speakers, motors, radio stations and other devices with strong magnetic fields.
Solid state drive care and maintenance
1. The SSD should have as few partitions as possible, and there is another saying called "small partitions"
As the name implies, fewer partitions means that the SSD has fewer partitions, and the SSD is only divided into one or two partitions. Due to the small capacity of mainstream SSDs and the impact of 4K alignment, the more partitions waste space, the more partitions will easily lead to partition misalignment, which may affect the performance of the partition boundary area. So the best way is to only divide it into one or two areas. If you need to save data, you need to install another mechanical hard disk. A small partition means that the capacity of the solid-state hard drive is incomplete, and some space is reserved. For example, a 128GB solid-state hard drive is actually 120GB. hard drive performance.
2. Don't use defragmentation
As mentioned earlier, mechanical hard drives can be defragmented, which can improve the speed of hard drives to a certain extent, but not for solid-state drives. Because solid-state drives have their own garbage collection mechanism, they can consolidate deleted file areas, leave valid data, move them to free locations, and then clear the entire area to avoid so-called fragmentation, so there is no need to defragment. Moreover, the solid-state hard drive has a limit on the number of erasing and writing. Defragmentation is equal to complete erasing and writing, which will greatly reduce the service life of the solid-state hard drive.
In addition, when using a solid-state drive, it is best to disable the system's read-ahead and fast search, because they will increase the read and write frequency of the solid-state drive, and their frequency and significance in actual use are not great.
3. Don’t run out of SSD space, leave a little more space
The more space the SSD takes up, the slower the performance. Therefore, try to store files that take up a lot of disk space on the mechanical hard disk. If there is only one solid state drive without a mechanical hard drive, it is best to keep the utilization rate of each partition not exceeding 80% to 90%, because if the utilization rate exceeds this range for a long time, it is easy to cause the solid state drive to crash, which is very risky. Therefore, useless files must be cleaned up in time to reserve enough disk space for each partition.
4. Use the recovery command Trim to restore the hard disk to the factory state
This Trim command is only used for SSDs, not HDDs. The function of this command is to transmit additional information to the solid-state hard drive, telling the solid-state hard drive where the data is invalid, and garbage collection and erasure can be performed to meet the needs of writing new data next time. But don't use this command often, because doing a Trim reset every time is equivalent to completing a full disk erase operation, which will reduce the service life of the solid state drive.
5. Refresh the SSD firmware
Regular brands of solid-state drives do not have firmware upgrade services, that is, internal programs that control solid-state drives, which will not only affect the performance and stability of solid-state drives, but also affect their service life. Excellent firmware contains advanced algorithms that can reduce unnecessary writing of solid-state drives, thereby reducing the wear and tear of flash memory chips, maintaining performance and prolonging the life of solid-state drives. Therefore, it is necessary to update the firmware according to the usage status to improve the performance of the SSD. However, don't upgrade and refresh at will. When there is no problem with the hard disk usage, there is no need to upgrade at all. The only time you can upgrade your SSD is if it slows down.
For more practical computer skills, pay attention to the public account [From Life Essays]