Think trim depending on what ssd you go with. I did not when I jumped from 10.6 to 10.8.įirst find out what you have. Depending on if, or how, you upgraded it to subsequent versions, you may still not have a restore partition. Plus, copying one drive to another will defragment it simply by copying.īottom line: clone or migrate to your new hard drive and enjoy the additional space without worrying about fixing what isn't broken.Ī 2009 MP was shipped with 10.6. It's not free but it almost always will fix things Disk Utility cannot.Īs for fragmentation, that's not a problem because OS X defragments on the fly automatically and it's not really a problem anyway. However, if there is a problem, a much more effective disk repair utility is Disk Warrior. There's no harm in checking but it's not something you need to check with regularity. If the directory gets corrupted, the drive can become unusable. This is different than individual files being corrupted (although it can cause that). The directory is the 'table of contents' that keeps track of what files you have and where they are on the hard drive. ![]() Is there any diagnostic I can use to confirm that? What is the 'disc repair utility'? Do I need to defragment the disc?Īmong the many things Disk Utility can do is check for and sometimes repair directory corruption on a hard drive. If you're not currently having any problems then you don't have any corrupt files to worry about.
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