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Apple Computing Products:
macOS - Operating System
OS upgrade - 10.7.5 to something higher
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<blockquote data-quote="MacInWin" data-source="post: 1812677" data-attributes="member: 396914"><p>Both are concerns. The one cited by the article relates to performance when reading/writing the drive. As it gets more and more fragmented as files are edited reading and writing will slow to a crawl. That impact is going to be pretty obvious and annoying pretty quickly. Your concern about wear, would apply to the head motors. Again, as fragmentation gets extreme, the heads have to move back and forth from the directory to the data, back to the directory, back to the data, etc. So the number and rate of head moves will increase over time. The disks themselves won't see much difference, as they aren't really impacted by the fragmentation of the data written to them. Head motors are linear motors and rarely fail. Normally drives fail because the associated electronics have some sort of component decay rather than a hardware failure of the drive disks or heads.</p></blockquote><p></p>
[QUOTE="MacInWin, post: 1812677, member: 396914"] Both are concerns. The one cited by the article relates to performance when reading/writing the drive. As it gets more and more fragmented as files are edited reading and writing will slow to a crawl. That impact is going to be pretty obvious and annoying pretty quickly. Your concern about wear, would apply to the head motors. Again, as fragmentation gets extreme, the heads have to move back and forth from the directory to the data, back to the directory, back to the data, etc. So the number and rate of head moves will increase over time. The disks themselves won't see much difference, as they aren't really impacted by the fragmentation of the data written to them. Head motors are linear motors and rarely fail. Normally drives fail because the associated electronics have some sort of component decay rather than a hardware failure of the drive disks or heads. [/QUOTE]
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Apple Computing Products:
macOS - Operating System
OS upgrade - 10.7.5 to something higher
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