Questions[acpi](server)

I am trying to figure out how to get FreeNAS 8 to sleep when inactive and, ideally, wake on lan activity (or, less ideally, wake on a WOL magic packet). However, as I've tried to search for information on how to do this, almost all discussions seem to be centered on FreeNAS 7. Also, the tools included in FreeBSD to do this seem to be missing (i.e. acpiconf, etc.).

Is there a way to get FreeNAS 8 to sleep and wake so that I don't have to leave the server running all the time? Given its usage level, it seems a waste to have the server running constantly.

I have a Windows 2008 R2 Server that switchs off on his own. and it does not look like a hardware problem since I can see in the log how all services are stopped and after:

Log Name:      System
Source:        Microsoft-Windows-Kernel-Power
Date:          28/12/2011 01:19:49
Event ID:      109
Task Category: (103)
Level:         Information
Keywords:      (4)
User:          N/A
Description:
The kernel power manager has initiated a shutdown transition.

And:

Log Name:      System
Source:        Microsoft-Windows-Kernel-General
Date:          28/12/2011 01:19:50
Event ID:      13
Task Category: None
Level:         Information
Keywords:      
User:          N/A
Description:
The operating system is shutting down at system time ‎2011‎-‎12‎-‎28T01:19:50.956025700Z.

What could be the problem?

UPDATE:

There is no UPS. It is not a virtual machine.

I have switched now from "Balanced" to "high performance" to see what happens.

This is the event sequence:

Information 28/12/2011 01:19:50 Kernel-General  13  None
Information 28/12/2011 01:19:49 Kernel-Power    109 (103)
Information 28/12/2011 01:19:49 Service Control Manager 7036    None
Information 28/12/2011 01:19:48 Service Control Manager 7036    None
Information 28/12/2011 01:19:48 Service Control Manager 7036    None
Information 28/12/2011 01:19:47 Service Control Manager 7036    None
Information 28/12/2011 01:19:47 Service Control Manager 7036    None
Information 28/12/2011 01:19:47 Service Control Manager 7036    None
Information 28/12/2011 01:19:47 Service Control Manager 7036    None
Information 28/12/2011 01:19:47 Service Control Manager 7036    None
Information 28/12/2011 01:19:47 Service Control Manager 7036    None
Information 28/12/2011 01:19:47 Service Control Manager 7036    None
Information 28/12/2011 01:19:47 Service Control Manager 7036    None
Information 28/12/2011 01:19:47 Service Control Manager 7036    None
Information 28/12/2011 01:19:47 Service Control Manager 7036    None
Information 28/12/2011 01:19:47 Service Control Manager 7036    None
Information 28/12/2011 01:19:46 Service Control Manager 7036    None
Information 28/12/2011 01:19:46 Service Control Manager 7036    None
Information 28/12/2011 01:19:46 Service Control Manager 7036    None
Information 28/12/2011 01:19:46 Service Control Manager 7036    None
Information 28/12/2011 01:19:46 Service Control Manager 7036    None
Information 28/12/2011 01:19:46 Service Control Manager 7036    None
Information 28/12/2011 01:19:46 UserPnp 20010   (7010)

Before the UserPnP event, there is an event from 4 hours before. All those "7036" are "the XXX service entered stopped state"

Probably it does not explain anything, but this is the UserPnp event:

Log Name:      System
Source:        Microsoft-Windows-UserPnp
Date:          28/12/2011 01:19:46
Event ID:      20010
Task Category: (7010)
Level:         Information
Keywords:      
User:          SYSTEM
Description:
One or more of the Plug and Play service's subsystems has changed state. 

PlugPlay install subsystem enabled: 'false' 
PlugPlay caching subsystem enabled: 'false' 

We have a CentOS 5.5 KVM host, running guests with various versions of CentOS and possibly other OSes later.

We'd like to be able to either (a) automatically send an ACPI shutdown to all guests or (b) suspend all guests to disk, on host shutdown.

Is there a standard method to accomplish either of these, or is it a roll-your-own situation? Thanks!

I have Debian (Kernel 2.6.26-2-686) installed on two computers. On one of them it reboots quite finely but I am having following problem with rebooting Debian on my second computer.

When i type reboot at the Linux prompt, following messages appear and system hangs up after saying "Restarting System":

Broadcast message from root@myname (tty1) (Sun Jan 17 11:23:26 2010)

The system is going down for reboot NOW!
INIT: Switching to runlevel: 6
INIT: Sending processes the TERM signal
Saving system clock
Stopping enhanced syslog: rsyslogd.
Asking all remaining processes to terminate...done.
Deconfiguring network interfaces...done.
Cleaning up ifupdown....
Deactivating swap...done.
[ 31.789103] Restarting System.
_

Normally when the sytem is busy _ sign blinks but _ at the last line above does not blink which shows, the system hanged up. I tried all keys but the screen is still frozen at the same point.

The difference that I noted between my two computers is that I don't have ACPI support in the BIOS of the system which is giving me this error whereas the BIOS of my first computer do have ACPI support on which Debain do not give this restart-hanging problem.

I have also disabled running the acpid script by running

update-rc.d -f acpid remove

but the problem still persists on the second computer.

Any ideas to solve or get around this problem?

Update:

The computer on which I am facing this problem is DELL Optiplex 330 (2.8 GHz, 1 GB RAM)

My Server shutsdown . Evertime at midnight.

The acpi Event power_button is triggered. at /etc/acpi/events/power_button
power_button:

# care about the power button
event=button/power.*
action=/usr/lib/acpid/power_button

How can i find out the "Caller" or the Trigger of this event ?