4/30/2023 0 Comments Defrag mac hard diskMac OS X 10.2 and later includes delayed allocation for Mac OS X Extended-formatted volumes.With more free space available, the file system doesn’t need to fill up every “nook and cranny.” Mac OS Extended formatting (HFS Plus) avoids reusing space from deleted files as much as possible, to avoid prematurely filling small areas of recently-freed space. Hard disk capacity is generally much greater now than a few years ago. You probably won’t need to optimize at all if you use Mac OS X. So what’s Apple’s take on the subject? An Apple technical article states this: Given Mac is open-source, we looked at the code.ĭuring a file open the files get defragmented if the following conditions are met:ģ. System has been up for more than 3 minutes Mac OSX has a defragmenter in the file system itself. The purpose of this blog post is to provide some data about fragmentation on the Mac, that I’ve not seen researched/published elsewhere.
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