[xubuntu-users] Spin Down Hard Disks

[Joshua O'Leary]

On 16/07/12 00:14, Michael P. Reilly wrote:
> On Sun, Jul 15, 2012 at 5:01 PM, Joshua O'Leary 
> <joshua.oleary at btinternet.com <mailto:joshua.oleary at 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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