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    What events spin up a HDD?

    Discussion in 'Linux Compatibility and Software' started by Mr.Koala, Aug 4, 2014.

  1. Mr.Koala

    Mr.Koala Notebook Virtuoso

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    When using a laptop with both SSD and HDD in a moving vehicle, I'd like to make sure the HDD is in sleep unless I really need to access it. I should be able to run a script to quickly spin down the HDD after boot, but I'm worried about something in the background waking it up again.

    If I've not mounted any partition on the HDD, what events can spin up the HDD? How do I make sure they never kick in in the background?
     
    Mr.Koala, Aug 4, 2014
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  2. kode-niner

    kode-niner Notebook Consultant

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    If the drives are powered down and not mounted, they shouldn't spin up. If you have scripts or anything that attempt to mount your drives for one reason or another, you'll have to hunt them down. Perhaps keeping them out of the fstab will help you there.
     
    kode-niner, Aug 5, 2014
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  3. Mr.Koala

    Mr.Koala Notebook Virtuoso

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    Thanks.

    Is it possible to stop the HDD from spinning up when I recover from sleep (S3)?
     
    Mr.Koala, Aug 5, 2014
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  4. kode-niner

    kode-niner Notebook Consultant

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    Maybe with hdparm and PUIS (Power Up In Standby) but I don't recommend it unless you're damned sure that all your stuff knows how to deal with it, from drive to controller to BIOS.

    What sort of laptop are you running inside a moving vehicle anyway?
     
    kode-niner, Aug 5, 2014
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