Hard Disk Drive File System Defragmentation

Addressing of sectors of the hard disk drive in use, called LBA, is linear. During the process of removal of files in a file system the fragments of free areas which are used again by the operating system for data storage at creation of a new file and at increase of existing ones are created.

Optimization of sequential reading and data search is the primary goal of a defragmentation.

Operating systems of "MS Windows XP" family and above use read ahead technology which is supported by almost all the models of hard disk drives, analyzing the start of any program and saving the information about the order and frequency of usage of other files by this program in the special system folder "Prefetch" that allows allocating files even more precisely during defragmentation. For example, if the third file is actively used by the first they are allocated side-by-side.

"SMART HDD" fulfils a defragmentation of all the file systems accessible to the program on a hard disk drive taking into account the file statistics gathered by the operating system. The high speed of defragmentation results only from defragmentation of the files the access to which from the operating system or the software working under its operation is detected. The given way is also the most sparing one in relation to deterioration of kinematics of a hard disk drive.