shutdown completely an HP-UX server

[Fabio Ettore]

Hi guys,

have you experiencies about HP-UX systems that shutdown it completely (that is without push the key on case at the end of shutdown)?

Thanks in advance!
Ettore

[Zafar A. Mohammed_1]

No

[Pete Randall]

Ettore,

Only during a power failure! ;^)

Do you mean that the machine turns its own power off like the switch had been pushed? I've never heard of such a thing on HP-UX (my Windoze PoC. does that).


Pete

[Paula J Frazer-Campbell]

Hi

If the server is shuting down by itself then check /var/adm/syslog.log and syslogOLD


Paula

[Mark Grant]

Hey Pete, the Olivetti 3B2 unix boxen did it way before windows!

[Paula J Frazer-Campbell]

Hi
If it is powering itself off is it overheating? as this can cause it.


Paula

[G. Vrijhoeven]

Ettore,

Do you mean powerdown after shutdown?

Gideon

PS. shutdown -h ( halts the server and will keep GSP active on rp**** servers, so you can remotely boot. )
I do not know how to powerdown from unix.

[Jeff Schussele]

Hi Ettore,

No - not with a single command.
You can run
shutdown -hy now
to bring it to a halt
And then depending on the model you could go into the GSP and power it down from there w/o having to flip the power switch.

Rgds,
Jeff

[Fabio Ettore]

Jeff and Gideon, you answered to my question.
Anyway I want to complete the problem:

Electricity in a big room with many HP-UX systems (RP-class, N-class, R390) is managed from an UPS. Few days ago there was a blackout and after that also UPS fell down. When it came back, it made some systems that were in halt mode (of course because they were shutdown -h) to boot up. But the boot sequence was in a confuse manner (there are DNS, firewall, NFS server and other...in this room). At that point another reboot was needed.

Then I asked you if it is possible to shutdown completely servers without human action on system's console.
Anyway I have another idea: autoboot could set to false, in this way boot will arrive at BCH prompt. Then anybody can decide which system to boot up first.

Thanks anyway for you responses!
See you soon!

Best regards,
Ettore

P.S.1: I will submit points later.
P.S.2: what's going on chat? (https://www.beepz.com/chatzone)

[Bill Hassell]

As Jeff mentioned, the newer HP boxes do have remote power down, so if your question is: can some models of HP servers be powered off with software, the answer is yes. That is one of the reasons that all HP servers with a GSP must have a password set before being placed into production.

[Pete Randall · Accepted solution]

Ettore,

Oh, that's what you were asking! ;^)

Depending on your ups monitor, you may well have the option to specify whether it will come back on after the power is restored. See the man page for ups_conf and specifically the parameter "kill_after_shutdown".


Pete

[Steven E. Protter]

If this is happening unexpectedly it should be in the GSP log, some kind of problem.

We have run the unplug shutdown tests and seen the systems come down with a shutdown -h 0


This works if ups_mond.conf is set up properly.

This does not shut the ups itself down. That we have to do with the switches on the front.

SEP

[Fabio Ettore]

Good morning guys,

thanks Pete and SEP. Your suggestion on UPS configuration is really interesting. I will let you know progresses about this issue.

Best regards,
Ettore

[Fabio Ettore]

Pete and SEP, a question for you (and of course for ITRC people too):
If UPS dies and server with its configuration together then how does UPS know the option kill_after_shutdown, that is UPS must be turned OFF when AC line voltage comes back?

Best regards,
Ettore

[Bill Hassell]

The behavior of the UPS during a power failure where the batteries run out is very dependent on the model of the UPS and whether it has non-volatile RAM to remember optional settings. In the case of battery exhaustion, having the UPS come back up is seldom the right choice, especially if there are related services (like networking) that are on a separate UPS (or no UPS at all). Complete loss of power really needs humans to power things back on (like big disk arrays, tape changers, etc).

[Fabio Ettore]

Thanks Bill, thanks everybody for your responses and your experiencies.

Like Robik says: Ettore, ITRC forum is way COOL!
Oh....he is right! :-)

Best regards,
Ettore

P.S.: Robik, are you happy? I am advertising https://www.beepz.com/chatzone

[Fabio Ettore]

ok