As part of BMC health check we issue a cmd "ipmitool sunoem led get LOCATE"
every 100 seconds (in timer function). We handled failure case like
ipmitool cmd return value is more than 0. But, we wondering if ipmitool cmd
itself is hung and never return back due to some issues (which you might
explained).
How important is to handle ILOM hung case in our code?
> But I did, I've tried it now and ipmitool got stucked and remains
> stucked and IPMI stack is stopped.
Do you mean ILOM hung case reproduced? If so, please elaborate.
Thanks in Advance,
Nandisha
On Mon, Dec 12, 2011 at 7:03 PM, Zdenek Styblik <zdenek.styb...@gmail.com>wrote:
> On Mon, Dec 12, 2011 at 2:16 PM, Zdenek Styblik
> <zdenek.styb...@gmail.com> wrote:
> > On Mon, Dec 12, 2011 at 1:51 PM, Nandisha H. M <nandi...@gmail.com>
> wrote:
> >> Thanks for the information Zdenek.
> >>
> >>> However, if you search this mailing list couple weeks back, you will
> >>> find patch from Harshad Prabhu which implements this feature. I think
> >>> you should be safe with this patch and ipmitool shouldn't get stuck in
> >>> case of IPMI gets AWOL.
> >>
> >>
> >
> > I gave it a thought, I've checked the patch ... well, actually subject
> > of the e-mail regarding the patch ... and it is related to
> > LAN/LAN-PLUS interfaces only. I'm sorry for confusion.
> > It still doesn't mean ipmitool can't get stuck when IPMI stack on ILOM
> > side is in some kind of trouble.
> >
> >> Hi Harshad,
> >> Could you please tell me which ilom patch/firmware has this feature?
> Should
> >> we need to pass any additional parm to ipmitool for timeout?
> >>
> >> I am currently using "ipmitool version 1.8.10.3".
> >>
> >
> > I'll bet it is from Hardware Management Pack, right?
> >
> >>>
> >>> In ILOM(I presume you have an Oracle/Sun server):
> >>> * Configuration -> System Management Access -> IPMI
> >>> * change state from Enabled to Disabled resp. uncheck the checkbox and
> >>> save
> >>> * try to get information via LAN -> ipmitool hangs. eg. % ipmitool -I
> >>
> >>
> >> I tried this setting in my ILOM web-tool.
> >> Configuration->SystemManagementAccess->IPMI and then unclick on Enable
> box
> >> (basically disable) and save. Even then I am able to execute below
> command
> >> without hang.
> >>
> >
> > Well, as I've said before ... Note, however, I was still able to query
> > ILOM via KCS interface. So you have to use LAN interface.
> >
> > Could you give out more info what the problem is or was? Because for
> > past ~ 8 months I haven't seen ipmitool to get stuck against ILOM
> > except the case I've described in previous e-mail. Of course one can't
> > rule out, perhaps and hopefully, extreme conditions on ILOM side.
> > However I doubt you could simulate those.
> >
>
> Kill IPMI stack in ILOM and ipmitool will get stucked even via KCS
> interface. ;)
> To question how to do it, how to kill IPMI stack in ILOM, I don't know.
> But I did, I've tried it now and ipmitool got stucked and remains
> stucked and IPMI stack is stopped.
> Funny enough, this didn't happen when SP being reset and I tried to
> query ILOM via KCS.
>
> Anyway, I will look at whole thing when I get back to work on Wednesday.
> I have caused enough confusion by guessing and don't want to cause any
> more.
>
> Z.
>
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