On Nov 27 17:10:11, mytraddress@gmail.com wrote:
> I am not intending to switch the machine.
Why?
> In terms of resources, I am mainly concerned about hard drives
> and cpu being worn down unnecessarily. I am not sure how much
> of a concern this should be though.
The CPU is not being "worn down" by running.
As for rotating metal disks, they have a lifetime;
that's why replacing them with SSD might be your best bet.
But even regular disks are dirt cheap now.
I don't believe this concern is even worth the time spent on this.
> Yes, I do know in advance when the machine needs to run and when it can sleep.
Then you can set a wakeup alarm in the BIOS (if it has one),
and simply shutdown -p via cron, at the appropriate time.
> "How much resources would that save?" -> My thoughts was that
> it would be better for hard drive longevity to have them spun down,
> rather than them being up for months without any access needed.
Wait, so you know in advance for how many _months_
the machine can sleep?
>
> > On 27 Nov 2022, at 15:50, Jan Stary <hans@stare.cz> wrote:
> >
> > On Nov 27 09:37:19, mytraddress@gmail.com wrote:
> >> The main thing I am trying to do is to make it sleep
> >> every now and then to protect resources.
> >
> > How much eletricity does the machine eat?
> > (What other "resources" are you concerned about?)
> >
> >> 1) Make it sleep and wake up when woken up remotely
> >> I investigated Wake On Lan, which I enabled via ifconfig. However, this system is deployed remotely, and I have no access to other computers on the LAN, so I am unable to make this work.
> >>
> >> 2) Make it sleep for a few hours and then wake up
> >
> > Do you know in advance at what hours the machine
> > needs to run, and when it can sleep?
> >
> >> After 3hours+ of research in man pages and the internet,
> >> I have not seen any solution for that.
> >
> > Some machines have a wake option in their BIOS.
> >
> >> 3) hard drives Spin down, CPU lower freq
> >> I have been able to lower the CPU speed by running `apm -L`.
> >
> > How much electricity have you saved by that?
> >
> >> I haven't been able to spin down the hard drives.
> >
> > How much resources would that save?
> >
> > I you are concerned about resources, wouldn't you be better off
> > getting a low-power machine, with SSD disks? There are machines
> > out there that eat around 10W and get the job done (dependeing
> > on the job of course); and SSD doesn't need to spin down.
> >
> >> I cannot share the full dmesg for security reasons
> >
> > Bullshit.
> >
>
>
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