As Mac hard disks grew larger, fragmentation of file data, file system metadata and free space slowed the disk down. Here’s how we used to solve that.
defrag
Not long ago, many of us paid for software which tied our Macs up for hours every month or so, defragmenting their hard disks. Why, and why not now?
Should you defragment files, or free space, in El Capitan, or are they even possible now?
Most of the computer-like devices that you use now store their data on solid-state disk (SSD) rather than traditional hard disk (HD) components. Are they also the best way ahead for regular computers?
The Eclectic Light Company 