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Apple Computing Products:
macOS - Desktop Hardware
Protecting the HD - ensuring longevity
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<blockquote data-quote="pigoo3" data-source="post: 940577" data-attributes="member: 56379"><p>Have you ever heard of MTBF? </p><p></p><p>It stands for Mean Time Between Failures. It's been fairly well written about that hard drive companies exaggerate their MTBF claims...since some of their MTFB numbers would suggest that hard drives should last as long as 57 years before they fail.</p><p></p><p>But...when you take into account the factors of:</p><p></p><p>- total spin time</p><p>- number of start/stop cycles</p><p>- cumulative heat stress</p><p>- motion abuse</p><p>- statistical quality variation between hard drives</p><p></p><p>The more realistic life-span of a hard drive is something like 5-7 years. That would be for a hard drive that is pretty much used everyday. </p><p></p><p>Obviously some hard drives will last longer, some shorter...and if a computer hard drive isn't used everyday (in the case where a user may not use their computer everyday, or may have 2-3 computers)...then a hard drive will last much longer.</p><p></p><p>As far as your question regarding hard drive sleep time. Start/stop cycles are one factor in the "wearing out" of a hard drive (among other factors)...so if you set your hard drives "sleep" time too short you will have more start/stop cycles. </p><p></p><p>Personally I think 10 minutes is pretty short...something like 20-30 minutes might be better (just my personal opinion)...but it really depends on what sort of computer tasks you do. If you access your hard drive a lot then a longer "sleep" setting would be better.</p><p></p><p>But at the "end of the day"...a hard drive will probably last 5-7 years. A replacement hard drive will cost you around $100 dollars or even less. And if you keep your files backed up...there really is no reason to worry about your hard drive.</p><p></p><p>Just relax...don't stress about the details...and enjoy your computer!<img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile :)" loading="lazy" data-shortname=":)" /></p><p></p><p>- Nick</p></blockquote><p></p>
[QUOTE="pigoo3, post: 940577, member: 56379"] Have you ever heard of MTBF? It stands for Mean Time Between Failures. It's been fairly well written about that hard drive companies exaggerate their MTBF claims...since some of their MTFB numbers would suggest that hard drives should last as long as 57 years before they fail. But...when you take into account the factors of: - total spin time - number of start/stop cycles - cumulative heat stress - motion abuse - statistical quality variation between hard drives The more realistic life-span of a hard drive is something like 5-7 years. That would be for a hard drive that is pretty much used everyday. Obviously some hard drives will last longer, some shorter...and if a computer hard drive isn't used everyday (in the case where a user may not use their computer everyday, or may have 2-3 computers)...then a hard drive will last much longer. As far as your question regarding hard drive sleep time. Start/stop cycles are one factor in the "wearing out" of a hard drive (among other factors)...so if you set your hard drives "sleep" time too short you will have more start/stop cycles. Personally I think 10 minutes is pretty short...something like 20-30 minutes might be better (just my personal opinion)...but it really depends on what sort of computer tasks you do. If you access your hard drive a lot then a longer "sleep" setting would be better. But at the "end of the day"...a hard drive will probably last 5-7 years. A replacement hard drive will cost you around $100 dollars or even less. And if you keep your files backed up...there really is no reason to worry about your hard drive. Just relax...don't stress about the details...and enjoy your computer!:) - Nick [/QUOTE]
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Apple Computing Products:
macOS - Desktop Hardware
Protecting the HD - ensuring longevity
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