update-manager --no-focus-on-map ??

Nils Kassube kassube at gmx.net
Sat Jan 2 13:30:56 UTC 2016


Ralf Mardorf wrote:
> On Sat, 02 Jan 2016 13:11:53 +0100, Nils Kassube wrote:
> >Ralf Mardorf wrote:
> >> On Sat, 02 Jan 2016 11:14:27 +0100, Nils Kassube wrote:
> >> >The allegation that a reboot spins down the disk isn't even true.
> >> >I
> >> >have tested it with two machines and on both a reboot doesn't
> >> >increase the load cycle count, i.e. the disk doesn't spin down.
> >> 
> >> Then try again with an external drive connected by USB.
> >
> >Ok, I tried it. Unfortunately the old ATA disk connected via USB/ATA
> >bridge doesn't support S.M.A.R.T. data, so I couldn't check the load
> >cycle counter. However the disk is loud enough to hear that the disk
> >doesn't spin down during a reboot.
> 
> I know for sure that my external USB drive does. I don't know how my
> internal SATA drives behave, but regarding the noise they are parked
> too and the same sound was made by my old IDE drives. I try to keep
> it in mind and to run smartctl to check my internal SATA drives, if I
> should reboot.

Well, maybe it depends on the individual disks how they behave. But for 
my small sample size of two internal laptop disks and one external disk 
there was no spin down. And BTW, for the internal disks i tried it with 
the Kubuntu versions 10.04, 14.04 and 16.04, so the Kubuntu version 
doesn't seem to be important.


Nils




More information about the ubuntu-users mailing list