UPS SOFTWARE

[wvsa]

Greetings, we have a UPS that services our entire computer room; looking for software that would reside on our unix servers that would detect when the power source is coming from the ups and shutdown the servers. Please dont laugh to hard at this request, seems impossible to me, but who knows. Thankyou for input.

[Christopher Caldwell]

Have you checked with your UPS vendor? Most of the major vendors make software that reads data from their UPS (older UPSs go through RS232, newer UPSs actually have ethernet connections). The UPS we just has SNMP monitoring, traps and auto-shutdown features.

[A. Clay Stephenson]

I did something like that a long time ago. Does your UPS have any kind of interface?
Typically big Liebert's have either an RS232
serial interface or a set of relay contacts.

I could probably dig up the c code for this. The general scheme was to have a daemon trying
to open a tty port that was attached to a set of normally closed relay contacts to detect DTR. When power dropped the contacts closed and the file open succeeded thus triggering a shutdown (after some delay in case power was restored).

[Gregory Fruth]

Have a look at powstatd.

http://dollar.biz.uiowa.edu/~powstatd

[wvsa]

Gregory, could you check that url, it seems to be invalid. Thankyou for your input.

[Mark Vollmers]

What type of UPS is it? We have a APC battery on ours that is connected to our UNIX and NT servers, and we have a program called Powerchute to tell the server to shut down when on battery for x minutes. I think that the NT also has Powerchute on it (different version) that will only shut it down, but the system monitoring is on the UNIX. For ours, only the server connected through the primary port (unix) can do monitoring and testing. The other servers can only shut down, but the software needs to be on every system.

Mark

[Tony Willis_1]

Stay away from HP UPS Manager II.
It does not work properly in the U.S. .
APC PowerChute is specified for HP-UX and other unix and non-unix systems.

You can submit a request to see if PowerChute is compatable with you UPS at www.apcc.com.

[Gregory Fruth]

Sorry, the correct URL is:

http://dollar.biz.uiowa.edu/powstatd/

Also, the blurb from that page might be of particular interest
to you:

Powstatd can also be configured to allow a master machine to
control several slave machines connected to the same UPS via a
network connection. This allows you to run several machines off
the same UPS, with only one of the machines actually reading the
UPS status over the serial line.

[Wilmar Ricio · Accepted solution]

We're using SiteNet 1 software for Unix and it's working fine.
Website is www.liebert.com.

GoodLuck