![]() ![]() ![]() Hard disk fragmentation refers to the discontinuous files generated in the process of hard disk reading and writing. It tells the head actuator the position of the file to be read, and the head will move to the position, and wait for the required sector to move under the head. When the system store files on the disk, the data are written on the platters from the inner track to the outer one.Īnd the system also reads out the data in the same order. As a result, the head may read and write data to the disk's designated location. While the platters rotate at a rapid speed, the head actuator regulates the movement of each head. There are many parallel disc platters and a magnetic head on the storage surface of each platter, as shown in the diagram of hard disc construction below. What does a disk defrag do? To answer this question, we need to start with some basic content about how HDD works to store data. ![]()
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