Power-on and reboot after power failure

Hi, I just set up a small school I volunteer at with a simple openSUSE 10.3 server in their computer lab. It’s running on a Dell poweredge system.

The Dell doesn’t have anything I could find in BIOS or any other hardware level config settings that would tell it to reboot after a power failure. Right now, if the power fails and then comes back on the machine will sit there until someone hits the front panel “on” button. Not good.

The research I did indicates that Dell’s answer is that it’s up to the operating system to “set the boot flag”. I’m not sure what that means, other than maybe it’s related to some aspect of ACPI (?)

Does anyone know; is there something I can configure in openSUSE 10.3 that would tell this Dell computer to re-power and boot after a power interruption?

Thanks,
Chuck

It depends on the hardware concerned. It would need to be enabled within the BIOS. There is often a power management setting, like ‘PWRON after PWR-failure’ or similar. I think it would be sensible to have a UPS employed to help protect the server from power interruptions.

On Fri, 15 Aug 2008 02:46:03 GMT
chuckcintron <chuckcintron@no-mx.forums.opensuse.org> wrote:

>
> Hi, I just set up a small school I volunteer at with a simple openSUSE
> 10.3 server in their computer lab. It’s running on a Dell poweredge
> system.
>
> The Dell doesn’t have anything I could find in BIOS or any other
> hardware level config settings that would tell it to reboot after a
> power failure. Right now, if the power fails and then comes back on
> the machine will sit there until someone hits the front panel “on”
> button. Not good.
>
> The research I did indicates that Dell’s answer is that it’s up to the
> operating system to “set the boot flag”. I’m not sure what that means,
> other than maybe it’s related to some aspect of ACPI (?)
>
> Does anyone know; is there something I can configure in openSUSE 10.3
> that would tell this Dell computer to re-power and boot after a power
> interruption?
>
> Thanks,
> Chuck
>
>

Please could you post the model number of the Dell Poweredge server?

So far, I’ve found that the option should be under the “System Security”
section of the system setup/config (<F2> / bios)

Loni


L R Nix
lornix@lornix.com

On Fri, 15 Aug 2008 03:54:50 GMT
L R Nix <lornix@lornix.com> wrote:

> On Fri, 15 Aug 2008 02:46:03 GMT
> chuckcintron <chuckcintron@no-mx.forums.opensuse.org> wrote:
>
> >
> > Hi, I just set up a small school I volunteer at with a simple openSUSE
> > 10.3 server in their computer lab. It’s running on a Dell poweredge
> > system.
> >
> > The Dell doesn’t have anything I could find in BIOS or any other
> > hardware level config settings that would tell it to reboot after a
> > power failure. Right now, if the power fails and then comes back on
> > the machine will sit there until someone hits the front panel “on”
> > button. Not good.
> >
> > The research I did indicates that Dell’s answer is that it’s up to the
> > operating system to “set the boot flag”. I’m not sure what that means,
> > other than maybe it’s related to some aspect of ACPI (?)
> >
> > Does anyone know; is there something I can configure in openSUSE 10.3
> > that would tell this Dell computer to re-power and boot after a power
> > interruption?
> >
> > Thanks,
> > Chuck
> >
> >
>
> Please could you post the model number of the Dell Poweredge server?
>
> So far, I’ve found that the option should be under the “System Security”
> section of the system setup/config (<F2> / bios)
>
> Loni
>
>

There is a tool named “IPMItool” available at

http://ipmitool.sourceforge.net

Which can talk to the Dell Poweredge server’s low level hardware to configure
some settings.

Specifically, you’re looking for…

ipmitool chassis policy previous

or

ipmitool chassis policy always-on

for “return to last state”, or always-on operation

ipmitool chassis policy list

would return a list of valid policies available.

Many more commands available. See the man page (on-site and included)

====================================

I have no hands-on experience with this, just posting what I’ve found that
could help your situation.

I did find that the PE1750 models did not have bios level support for
‘boot after power loss’.

====================================

And as a totally off the wall solution, If the PowerEdge has an ATX style
power supply, if you bridge across pin 14 (Green wire) and a black to either
side of it (pins 13 or 15), this will fake the motherboard’s ‘power on’
signal, causing the power supply to always remain on. You’ll be unable to
power off the system without pulling the plug, but it will always reboot when
power was reapplied.

(I did say this was an “out-of-the-box” type solution, right?)

=====================================

Hope this helps

Loni


L R Nix
lornix@lornix.com

Thanks for the suggestions. I won’t be able to check the exact model number of the server until I go back there on Sunday. The config tool idea sounds interesting. F2 (BIOS) definitely had no settings related to this. There were other settings at hw power-on (ctrl-E, F10) that I also explored…nothing.

If it were my machine I’d have no problem taking a soldering iron to it, but since it’s the school’s computer I would like to find a software solution. :slight_smile:

Thanks,
Chuck

Look for the “AC Recovery” option in the “System Security” tab in BIOS.

AC Power Recovery (“Last” default):
Determines how the system reacts when power is restored to the system. If system is set to Last, the system returns to the last power state. On turns on the system after power is restored. When set to Off, the system remains off after power is restored.