BroadCast Message keep poping uncomfortable to work ..:(

[Johnson Punniyalingam]

Hi All,

how could i susprise the below pop-up message
my server connected to a UPS

Broadcast Message from root () Thu Oct 9 23:22:49...
"Communication has been lost"


Broadcast Message from root () Thu Oct 9 23:22:54...
"Communication has been lost"


Regards,
Johnson

[Gokul Chandola]

Hi,
This is networking issue thats diconnecting from target destination.

Regards,
Gokul Chandola

[Matti_Kurkela]

The message generally cannot be stopped without shutting down the UPS monitoring program, because it is telling about a very serious problem with the UPS.

Your UPS monitoring program is trying to tell you it can no longer see if the UPS is receiving power from the wall socket or not.

If power goes out now, the UPS will feed power to your server until the UPS's battery runs out or the power comes back. If the battery runs out, your server will crash, maybe causing data loss and/or corruption.

The communication between the server and the UPS is important: when it works, the monitoring program will do a controlled shutdown if the power outage is so long the UPS's battery would run out.

The communication may be through the network, or using a serial cable.

You should be demanding your hardware/OS support personnel to fix the problem ASAP, not thinking about ways to silence the message.

MK

[Johnson Punniyalingam]

Hi Matti,

Bunch of Thanks for your reply, One of my collegues had the same issue but its from Wintel Server not UNIX Server, he suspecting Serial Cable connected from UPS to Server may have issue..? when to Data Center did pshyical health check on the UPS nothing found..? Any suggestion

Rgds,
Johnson

[Torsten.]

What UPS model and monitoring software you are using? Serial or network attached?

[Johnson Punniyalingam]

serial Cable, UPS model no idea, becoz the both primary and reduntant power cables goes beneath the "Floor Board of the Data Centre"


Thanks,
Johnson

[Torsten.]

Based on the information you gave so far - what do you expect now?

[Johnson Punniyalingam]

Hi Torsten,

sorry for my stupid reply , i d'not have much info currently regards to UPS, may be would gather much more info come back to you

Thanks,
Johnson

[sreekanthtm]

My thoughts.....

There should be some way to redirect the o/p from the console to any file OR /dev/null.
Have u guys already think about that??

Rgds
Sreekanth

[Bill Hassell]

The easiest solution is to stop running the UPS monitoring software and put someone in the computer room 24x7 to watch the UPS. If the lights go out, sign on to the console and get ready to manually shutdown the computer before it goes down hard when the batteries die.

Seriously, this is a critical component of your system's reliability. Contact the vendor of the UPS and get them to fix the problem. It might be the cable but then it might be a bad UPS which must be repaired. If repair is not possible, then stop the monitoring software and forget about it. And hope that your data center never loses power.

[TTr]

Your original message was about the annoying broadcast messages. You have not given any other info. The message comes from the UPS daemon that is running on your HP-UX server, at least that one you can see which one it is (it is not :) under the floor). Also check if there is anymore info in this daemon's log or in syslog. If you only want to get rid of the broadcast messages you can do one of three things
1. Stop the UPS daemon
2. Check if the daemon has a config file where you might be able to unset the broadcasting
3. Temporarily, rename the /usr/sbin/wall binary, but don't forget to rename it back.

If the UPS is physically OK, then most likely you have a flaky serial cable. Another imporatnt thing to check is that the UPS daemon is running with a "real time priority" priority level.

[TTr]

> sreekanthtm: There should be some way to redirect the o/p from the console to any file OR /dev/null.

This is not console output, they are broadcast messages and they go to each and every tty on the system, redirect does not apply here.

(0 points for this please)

[Johnson Punniyalingam]

Hi All

Thanks for your support and your valuable and percious time .. :)

Resolution :-
found a file under /etc/rc.APC_ups sart|stop
also found entry /etc/inittab

/etc/rc.APCXXX _xxx"_ blah_blah --> commented this line "Problem resolved"

Server "receiving power " from another resources.. :)

Thanks,
Best Regards,
Johnson