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тАО12-21-2004 02:08 AM
тАО12-21-2004 02:08 AM
Over the weekend we had a major incident when the apps servers were powered down. There were no power lights at all on the front display. I had to press the reset switch on the back to bring them back on.
Two questions:
Firstly, if the shutdown command was issued from the command line, would this power the box down to the level of not even showing that power was still connected? Most other servers I know would still display a power connection if nothing else.
Secondly, trying to investigate who may have done this (should it have been from a session), I'm finding that each day logs for last, mail, and su are cleaned out, only giving the current day. There is nothing obvious in the root crontab. Any suggestions where to find what is doing this?
Any advice appreciated.
Thanks.
Solved! Go to Solution.
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тАО12-21-2004 02:16 AM
тАО12-21-2004 02:16 AM
Re: RP2470 shutdown
As to your first question, if you do a 'shutdown -h', that merely halts the system and you get a message similar to "OK to power down or reset system". It does not, as far as I know, actually power the system off.
Now I THINK there may be a GSP command that will allow you to do some power management on some of these systems. I don't recall the GSP commands, but I believe you can power a system off this way.
The other would be if you have these system attached to a UPS and the UPS lost power and the batteries then died cutting power to your systems.
This definitely requires some investigation.
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тАО12-21-2004 02:16 AM
тАО12-21-2004 02:16 AM
Re: RP2470 shutdown
Firstly: No, not in any of my experiences
Secondly: How about a power failure? Check /var/adm/syslog/OLDsyslog.log for evidence of a power failure.
If you lost power and the UPS was configured to stay off when the power was restored, this could account for the symptoms you've seen.
Pete
Pete
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тАО12-21-2004 02:21 AM
тАО12-21-2004 02:21 AM
Re: RP2470 shutdown
Were things like circuit breakers checked to make sure that you didn't have a breaker trip? Hopefully these are not all on the same breaker.
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тАО12-22-2004 01:47 AM
тАО12-22-2004 01:47 AM
Re: RP2470 shutdown
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тАО12-22-2004 02:55 AM
тАО12-22-2004 02:55 AM
Re: RP2470 shutdown
Some add-on products, like ITO/OVO or similar products, might do stuff like that.
One other thing you can try, though it won't necessarily give you specific dates or times, is to look at the GSP's console log. This may give you a bit of an idea as to what happened.
Access the console (web, lan, terminal, whatever) and go into GSP ---
Good luck.
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тАО12-22-2004 03:03 AM
тАО12-22-2004 03:03 AM
Solutionit is not possible to power down the system with a shutdown or reboot or any else command from an OS session.
It is possible to power down the system by logging into the GSP of the server ("pc"). It can also be powered on again with the same command.
I cannot tell you if turned off the server manually, make sure that the GSP is password protected and that nobody has physical access to the server and the console.
The system will power off and remain off after short power failures (< 5 sec). Then you would also have to turn it on manually with the power switch. After longer power failures, the system boots automatically. This was done to prevent from ping pong effects if a shorted circuit is responsible for the power failure.
Maybe you simply had a power problem in your power distribution ?
Another interesting command is the "cl" on the GSP. It displays the x kB of the console log. If the error happens again, you maybe find useful information here.
best regards
Stefan