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Old 07-15-2012, 09:01 PM
Joshua O'Leary
 
Default Spin Down Hard Disks

Hi,
Just wondering is it a good idea to leave 'Spin down hard disks' on in
power manager settings, battery power. Obviously it would save a bit of
power, but would it shorten the life of the hard disk due to increased
starting/stopping?


Joshua

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Old 07-15-2012, 11:14 PM
"Michael P. Reilly"
 
Default Spin Down Hard Disks

On Sun, Jul 15, 2012 at 5:01 PM, Joshua O'Leary <joshua.oleary@btinternet.com> wrote:


Hi,

Just wondering is it a good idea to leave 'Spin down hard disks' on in power manager settings, battery power. Obviously it would save a bit of power, but would it shorten the life of the hard disk due to increased starting/stopping?





Joshua

Actually, it can crash the operating system if the kernel happens to try to write to swap space or needs to write buffers to disk, potentially leaving a corrupted file-system. *Might not happen as much now with ext3 and ext4, but still... *If you are going to try that, then a) don't use swap and b) run 'sync;sync' before the hard drives are spun down.



* -Arcege
--
What comes after the O-nut?
The P-nut
What comes after the P-nut?


The elephant
* joke told by my sons



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Old 07-16-2012, 02:19 PM
Joshua O'Leary
 
Default Spin Down Hard Disks

On 16/07/12 00:14, Michael P. Reilly
wrote:




On Sun, Jul 15, 2012 at 5:01 PM, Joshua
O'Leary <joshua.oleary@btinternet.com>
wrote:

Hi,

Just wondering is it a good idea to leave 'Spin down hard
disks' on in power manager settings, battery power.
Obviously it would save a bit of power, but would it shorten
the life of the hard disk due to increased
starting/stopping?



Joshua






Actually, it can crash the operating system if the kernel
happens to try to write to swap space or needs to write buffers
to disk, potentially leaving a corrupted file-system. *Might not
happen as much now with ext3 and ext4, but still... *If you are
going to try that, then a) don't use swap and b) run 'sync;sync'
before the hard drives are spun down.



* -Arcege

--

What comes
after the O-nut?

The P-nut

What comes after the P-nut?

The elephant

* joke told by my sons











If this is true, the defaults need to be changed, or at least added
in with a bit of code to sync the disc before it is spun down.



J





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