After browsing many forums, I saw a lot of sayings about hard drives, but there are a lot to be found at all, or even fallacy. This paper analyzes the working mechanism within the hard disk, the main purpose is to release the readers to the various misunderstandings in the process of hard disk, and overthrow those fallacy.
Misunderstanding 1: Multiple formatting hard drives will decrease hard drive life
Simply put, formatting hard drives will never reduce the service life of the hard disk. The user's universal view is that formatting hard drives can cause a reduction in hard disk life. In fact, formatting hard drives are not caused by hard drives. When formatting the hard disk, just read and write the hard disk, and during the reading and writing process, the head and hard disk disk is not in contact, so there is no possibility of destroying the disk. Conversely, if the hard disk is vibrated during use, it is possible to destroy the hard disk. As long as you like, you can format 20 times a day, which will not affect its service life.
Misunderstanding 2: Disk Defragmentation will damage the hard disk magnetic head drive arm
This view is opposite to the facts. With disk fragmentation, the hard drive stores the data on the disk in a concentrated area so that when reading and writing data for the hard disk, the head can be continuously moved within a continuous area without having to perform in the magnetic disc. A wide range of movements, thereby reducing the workload of the drive mechanism of the hard disk and improves the performance of the hard disk. Therefore, from the perspective of technology, the disk defragmentation can reduce the load of the magnetic head drive mechanism. Misunderstanding 3: If the hard disk has a bad area, format the number of bad regions
If your computer system has a periodic collapse, this may result in your hard disk to generate a bad area, and continue to read and write to the bad area, which will inevitably make the bad area more and more. Formatting a hard disk will have more bad regions, which is not caused by formatting, but formatting tools to find those hidden badges.
Misunderstanding 4: The system breakpoint or low battery will destroy the hard disk
Insufficient electricity or breakpoints will not cause the hard disk to generate bad regions! The current hard disk is electromagnetic drive, when the power is insufficient or sudden breakpoint, the head drive mechanism automatically parked the magnetic head in the appropriate position, so there is no danger to generate a bad area. However, it must be noted that if the power supply is not available, it will be sent to the hard disk to the hard disk, which will destroy the hard disk.
Misunderstanding 5: The hard disk is only turned when it is read and written.
In fact, after the system starts, the disk's disk is rotated at the time, unless the user hangs the system to save the power.
Misunderstanding 6: It is best to stop the disk when the hard disk is idle.
Under normal circumstances, after the system is started, the disk of the hard disk is rotated at the time, and the disk rotation is driven by the motor, and the disk is rotated and retains uniform speed, which requires a lot of time overhead. Therefore, if the disk is turned when it is read and written on the disk, it will stop when not reading and writing, and it will take a long time at each startup disk. Therefore, in order to improve the performance of the hard disk, it is best to keep the disk to keep the state.
Misunderstanding 7: Some hard drive badges are logical bad regions, which can be repaired by software.
In fact, the bad area is the bad area, there is no such thing as a logical bad area and the physics bad area. The hard disk bad area is the media area that cannot be used, which may be due to corrosion of the storage medium or physical damage. The hard disk bad area cannot be repaired by formatting or software tools, and it can only be hidden.
Misunderstanding 8: Don't worry about hard drive, because you can go to the necklace through the low-level formatting tool
Yes, each hard disk has some hidden redundant sectors, and the hard disk can be used to replace the bad zone with a redundant area, but the excess sectors of each hard disk are limited, and the redundant sectors are used. After replacing the bad zone, the hard disk head is largely opened to the redundant sector when reading and writing data, which will affect the performance of the hard disk. In addition, it is worth noting that once your hard disk has a bad area, this is a bad signal! This bad sector will corrode the surrounding sector and affect the stability of the hard disk head drive mechanism operation, sooner or later, the hard disk will be collapsed again. Therefore, if your hard disk has a bad area, it is a very important data, it is recommended that you back up data or replace this problem with the new hard drive. Misunderstanding 9: Regularly formatting hard drives to improve system performance
This is another misunderstanding for the hard disk. Formatting hard drives will not increase the performance of the hard disk. If you find that your hard drive has declined after using a few months, this is because the data in your hard disk forms a lot of "fragments", making the hard disk in reading and writing data. The scope of the magnetic head drive mechanism moves is particularly large, because attempts to organize "fragment" in the hard disk.
