Re: No fsck in battery mode
Please show the hdparm bit. There is the problem of routine file
accesses, flushing, etc., spinning up the drive immediately after it spins
down.
I would be interested in how you deal therewith.
Luke
On Mon, 8 Sep 2003, Tony
Godshall wrote:
> According to jqdkf@army.com,
> > On Mon, Sep 01, 2003 at 10:04:33AM +0200, Harry Brueckner wrote:
> > > Hello,
> > >
> > > is there a way to avoid the regular fsck run (every n mounts or after m
> > > days) when the laptop is in battery mode?
> > >
> > > I think its quite a waste of battery power for the fsck run and
> > > rescheduling for the next reboot (with powersupply available) would be very
> > > nice. :-)
> > >
> > > Any idea how to get around the fsck run?
> > >
> > > TIA for any ideas,
> > > Harry
> > >
> > If you use ext2, you can try `tune2fs -c 0 -i 3m`
>
> I like the idea of changing the interval, but I don't (as
> others have also said) like your idea of disabling it.
>
> So this is what I just made for my laptop:
>
> /etc/init.d/optimize_hd
> : #!/bin/sh
> :
> : PARTS="/dev/hda1 /dev/hda2 /dev/hda6"
> :
> : if /usr/bin/on_ac_power
> : then
> : FSCK_MOUNTS=10
> : FSCK_INTERVAL=1w
> : else
> : FSCK_MOUNTS=40
> : FSCK_INTERVAL=3m
> : fi
> : for PART in $PARTS
> : do
> : tune2fs -c $FSCK_MOUNTS -i $FSCK_INTERVAL $PART
> : done
>
> ( this file also has hdparm control in it to make the drive
> sleep more when on batteries, but that is not to the point,
> so I omitted those refs )
>
>
> The reason I like this approach is that it makes the fsck
> happen when on AC but unlikely when on DC. But it doesn't
> disable the fsck entirely.
>
> Anyone have a reason why it would be bad to run tune2fs this
> way at every reboot?
>
> Tony
>
>
>
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