[WBEL-users] Power failures and Sending sms from server
simone72 at email.it
Fri Mar 11 08:50:53 CST 2005
Just discovered that RHEL4 would shut power down correctly on the same
machine (tested on another Compaq 4420EA). So while waiting for WBEL4
I'll certainly try what you suggested.
Thanks, have a nice day
John Morris wrote:
>On Wed, 2005-03-09 at 11:36, Simone wrote:
>>Hi, just yesterday night we had a power failure. The mailfiltering
>>"server" (Compaq 4420EA PC) is WBEL, and after running a while on ups it
>>shut down cleanly (NUT over a MGE Ellipse ups). The problem is that it
>>doesn't really shut down the machine but it stays with a "Power down"
>>message, and when the power comes back it doesn't restart. I tried
>>passing apm=power_off, apm=power-off or acpi=on arguments to the kernel
>>in the grub.conf with no success. I was wondering if there's a way to
>>solve this, or a way around it.
>Then I'd say Linux isn't going to be able to reliably shut the box off.
>Even if you find a magic boot option that works today, you won't
>remember to retest on every kernel rev and will get bit again someday
>when something changes.
>So why not attack the problem at the UPS by having it switch off the AC
>current? Most 'smart' UPSes can at least shutdown entirely, many can
>control power to each outlet or pair of outlets. Add a line into the
>shutdown script to have the UPS kill the power right before the line
>that does it via apm/acpi. Bit more of a pain in the rear to get it
>working but probably more reliable longterm.
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