This function works merely to automatically prevent fragmentation in the drive in the first place. Apple uses the HFS+ format which has a special function of Hot File Adaptive Clustering. It is due to the fact that the Mac OS X version after 10.2 has a different file system than Windows. In general, Mac doesn't need defragmentation. Ultimately, defragmentation saves time to search and read the files thereby improving the performance of your system. In simple words, defragging Mac hard drive moves everything in order and fills the holes which exist while using the files.
It erases the gaps from the files and stores them as a single whole part in the same location. Some Facts About Defragging Macĭefragment is the process where scattered files from the storage are organized.
