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?
fragmentation
Should you enable TRIM, and what is it? Do you need to turn wear levelling on, and what about fragmentation on SSDs? Some mysteries explained.
What happens next with Apple’s new file system is a strong indicator of its commitment to the Mac as a computer platform. Copy-on-write is the issue.
The Eclectic Light Company 