How to safely defrag a Mac's hard drive: Apple Support Communities | Defragment Mac | Scoop.it

TOOLS:

External HD, Partition or Flash Drive Large Enough

Carbon Copy Cloner or SuperDuper

Onyx or YASU or AppleJack

https://discussions.apple.com/docs/DOC-3045

https://support.apple.com/kb/HT1310

https://discussions.apple.com/docs/DOC-3353

https://discussions.apple.com/docs/DOC-3521

 


Via David Anders