How/Should i defrag my mcabook pro 13" 2011?

Discussion in 'MacBook Pro' started by salacious, Oct 10, 2011.

  1. salacious macrumors 6502a

    May 15, 2011
    so basically i want to know should i defrag my mac? if so what app?
  2. Intell macrumors P6


    Jan 24, 2010
    You don't need to defrag your Mac. The HFS+ filesystem does that automatically to improve overall speed.
  3. salacious thread starter macrumors 6502a

    May 15, 2011
    oh ok cool thanks for that, aint got a clue about how the macs run the system files
  4. GGJstudios macrumors Westmere


    May 16, 2008
    Intell is right. About disk optimization with Mac OS X:
  5. alphaod macrumors Core


    Feb 9, 2008
    In some cases you want to defragment~

    For example, let's say you have 40GB in free space and you want to partition 35GB to BootCamp; the utility might give you a bunch of errors telling you that the partitioning can't be done, files can't be moved, etc., and the only way you can install Windows is to wipe the drive, reinstall OS X, and then go from there.

    Well for that you can either reinstall like they say (which could be tedious since you need to move files back from backup as well), or defragment your drive. Defragmenting your drive doesn't always work, but it worth a try since it's less time consuming overall it does make drive access faster.

    So the other replies are correct in that you don't need to defragment in OS X in most normal circumstances, but in some cases defragmenting your drive is useful.

    Anyways, I use iDefrag to do it. I have Drive Genius 3 and it also defragments, but iDefrag has a visual which helps knowing when it will be done.
  6. blatopilot macrumors regular

    Sep 24, 2011
    I recall reading somewhere that if you add/delete/move a large amount of files it can be helpful. I still don't know the verdict on that.

    I believe there was a gentlemen who did a lot of video and photo work. Constantly importing, moving and deleting. He got utility from it. For the average user I don't think its important.
  7. Kafka macrumors 6502

    Mar 10, 2011
    Don't worry about this.
    Sometimes leave it turned on during the night with the lid open and it will do the maintenance by itself.
  8. oxfordguy macrumors 6502a

    Feb 27, 2008
    Oxford, England
    Mac's manage their discs quite well, but I do still occasionally defrag, especially before re-partitioning a drive, for example. I use iDefrag for this (and have also used their iPartition product - both are very good).
  9. GGJstudios macrumors Westmere


    May 16, 2008
    The maintenance scripts have nothing to do with defragmentation. Also, you don't need to leave it on overnight. If your Mac is asleep or off when the scripts are scheduled to run, they'll just run the next time your Mac is on.
  10. niksimpsons macrumors member


    May 12, 2011
    Partially agreed!! It all depend on the type of work you performing on your Mac. Apple itself says the file system can defrag limited (upto 20MB) space. If you need to transfer, delete, shift large number of files usually you could need to do defrag. For me as a vedio editor I need to do it usually and utility that is used is Stellar Drive Defrag. I started with free download but soon decided to buy, it actually worth buying....:eek:

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