General > General Technical Chat

In 2024, do you let your computer go to sleep or not ?

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rsjsouza:

--- Quote from: PlainName on January 08, 2024, 08:42:13 am ---
--- Quote from: Psi on January 08, 2024, 05:43:07 am ---With spinning disks it's best (for longevity) to leave them spinning rather than letting them power down and up on activity + timeout.
The starting/stopping is what wears the motor and bearings, and the thermal cycling isn't good on other parts either.

--- End quote ---

Not disputing that but do you have a reference for it? A simple thought experiment suggests it isn't true for all cases (5 mins run time every 20 years, for example) so there should be some point where best practice changes from turning off to leaving it on.

--- End quote ---
I would say it is heavily dependent on the use case. A computer that powers on/off several times a day might be a problem, as the startup current on HDD motors is much higher than nominal, according to a resident expert that used to work on this industry. However, this is certainly not true for very lightly used servers - our NAS sees very little activity (accessed once every few days) and there is no scenario where leaving it powered will extend its life, as bearings will be the dominant wear factor.

coromonadalix:
my personal computer  is going into sleep / hybernation every day,  mostly build silent with almost nothing who spin,  nvme / ssd based

it's been 2 years now ... no problems, and i'm on a ups,  only a few times the computer has fully shutted down ...

starts in 8 seconds .... not fast enough loll   

Firefox with multiple panes always opened,   "tab saver pluggin"  "Firemin application"  just in case
Outlook ready to go

few hibernation / sleep   settings and optimization,  that's all

EPAIII:
Sleep mode is not off.

Even power off mode is not really off.

If you want a computer to be really shut off, you need to connect it through a power strip and turn that power strip off.

Even that does not work for a lap-top. I think there you would need to actually remove the battery.

rsjsouza:
No need to remove batteries. In a laptop you put it down by issuing a "Shut Down", not an S0 "Modern Sleep Mode" which can apply updates and bring up the computer without your knowledge. i have been using Windows 10 and 11 for quite some time now and this effectively prevents any computer activity.

tom66:
Is motor failure of HDDs a realistic risk?  It's my understanding HDD failures typically occur for a few reasons:

a) Head touches disk surface due to excessive vibration/physical shock/bearing failure;
b) Too many sectors become irretrievable, leading to breakdown of the filesystem, possibly due to (a);
c) Disk controller failure for unknown reasons, ESD/power supply issues, random silicon death etc.

I haven't heard of motors failing.  Typically, one would expect a brushless motor to survive hundreds of thousands of hours.  The bearing is a risk, but I think it should be well established now how to make these bearings last a very long time given the precision elsewhere used in hard drive manufacture.

Spinup/spindown shouldn't correlate strongly with HDD life in "normal" applications (shutting down disks on idle) IMO.

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