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Which drive would you get?
jerryab wrote:
Filip454 wrote: This is the biggest myth, which is also constantly repeated on the internet. Lower temperature =/= running longer It is no myth for electronic components. Running hotter = shorter component life. Except your hypothesis is one-ended. Running too cold is more deadly than running too hot. Also, there is a difference between a drive that is running hot (outside of its operating temperature range) and just running hotter (which is relative to some base value that is often never specified). Google and others have actually done massive studies on hard drive failure rates under various environmental conditions - versus you and others promulgating that age-old and unfounded myths based on casual observation. https://www.zdnet.com/article/heat-d...res-what-does/ (use the link to the PDF to read the research) https://www.teamsilverback.com/humid...-drive-killer/ Turns out humidity has a greater effect on hard drive longevity than does temperature (wherein the restriction that you are running the hard disk within its rated operating temperature range, not at extremes). Hard disks are not sealed. The cinter filter only prevents particulate debris from getting inside, not gases or vapors. Surge current (electrical stress), thermal stress (temperature delta), and mechanical stress are more important than running hot or cold (but again within the rated operating temperature range). USB-attached drives and even internal ones (depending on power options) can be stressed more by power cycling them or repeatedly spinning down and resuming on activity. Even physical orientation of the disk has more of an effective on longevity than does runnning at the high end of the operating temperature range. Manufacturers say there is no difference because they are specifying within the MTBF rating for their product. Heat rising off a horizontal platter does not cross over and reheat the platter as would occur in a vertical orientation. This is the same consideration when planning air flow within the chassis: do not push pre-heated air over components that you are trying to cool. Also, in the past, manufacturers used to recommend the drive was formatted in the same orientation under which it would be used. In other words, don't format when horizontal and then use when vertical. Mostly that has been lost regarding longevity of the drive but there is still a performance degrade. See: http://lowendmac.com/2018/does-hard-...t-performance/ The results show "it depends on the make and model of the drive". So, it's not a hard and fast rule but can occur. USB-attached and even internal disks using Power Options will spin down when idle. This means cooling down. It means a power surge on spin up which means heating up. Higher activity means more energy consumed which means more heat; however, activity fluctuates for end user hosts versus file servers where the drive is likely to be constantly active. Electrical stress (surge), thermal stress, and mechanical stress also factor into longevity. As the Google study shows, age far outweighs any temperature factor regarding longevity - with 2 years being the major factor to change from 2% to 8% AFR (annualized failure rate). That is, longevity is not linear with age of the drive. |
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