Failsafe on kernel panic

[Sami Halabi]

I started investigating ipmi, so far i can configure IP from fbsd to ipmi.
My question is how to access it? Can it be done inband attached to one oc
the Ibm nics kn the board? or knlh out oc band?
In case of oob any knows if the iLO plug is pure rj45 in ibm servers
(specially x3250/3550)?

Thanks in advance
Sami
 בתאריך 20 בינו 2013 16:07, מאת "Willem Jan Withagen" <wjw at digiware.nl>:

> On 17-1-2013 4:18, Ian Lepore wrote:
> > On Wed, 2013-01-16 at 23:27 +0200, Sami Halabi wrote:
> >> Thank you for your response, very helpful.
> >> one question - how do i configure auto-reboot once kernel panic occurs?
> >>
> >> Sami
> >>
> >
> > From src/sys/conf/NOTES, this may be what you're looking for...
> >
> > #
> > # Don't enter the debugger for a panic. Intended for unattended operation
> > # where you may want to enter the debugger from the console, but still
> want
> > # the machine to recover from a panic.
> > #
> > options       KDB_UNATTENDED
> >
> > But I think it only has meaning if you have option KDB in effect,
> > otherwise it should just reboot itself after a 15 second pause.
>
> Well it is not the  magical fix-all solution.
>
> Last night I had to drive to the colo (lucky for me a 5 min drive.)
> because I could not get a system to reboot/recover from a crash.
>
> Upon arrival the system was crashed and halted on the message:
>         rebooting in 15 sec.
>
> Which but those 15 secs are would have gone by for about 10-20 minutes.
> fysically rebooting or resetting ended up in the same position:
>         rebooting in 15 sec.
> Without ever getting to actually rebooting.
>
> So if I  (you) have servers 2 hours away, I usually try to work on
> upgrading/rebooting during business hours. And remote hands can get me
> out of trouble....
>
> IPMI is another nice way of getting at the server in these cases. But
> that requires a lot more infra and tinkering.
>
> --WjW
>
>
>
>