[Gllug] clueless at IPMI, hellp!

[Nix]

On 17 May 2009, nix at esperi.org.uk stated:
> On a quasi-unrelated front I've just been exposed to IPMI for the first
> time and it's somewhat confusing. I have so far completely failed to get
> IPMI-over-the-network working thru ipmitool.

As is typically the case when one appeals for help online, I cracked
this within minutes of posting.

>                                            The BMC has a MAC of its
> own, so presumably it should have an IP of its own as well. But it is
> unclear what port it advertises service on, and it doesn't appear to
> respond to pings on that IP address, or anything else. How does one
> configure this?  The motherboard manual and all howtos I've read are
> completely opaque and the Intel docs drown you in acronyms.

The BMC on this system at least only talks over one of the NICs (the
uppermost, eth1 in Linux). Give it an IP of its own because it'll take
that over entirely, ARPing for it even if ipmitool says it isn't (I
suspect this is an option which some BMCs can change and some, like the
aspeed one in here, have hardwired).

Serial-over-LAN still does nothing visible, but that's because I haven't
turned the serial console on yet, so the serial port is quiet... I
wonder why it isn't console-over-LAN? (I suppose that's what iKVM is for,
if I could find any info at all on how to enable or access iKVM.)

> CPU1 VCORE       | 0.928      | Volts      | ok    | na  | 0.896   | na | na | 1.496 | na
>
> (Another unconnected sensor. I'm not sure what the figures on the right
> are: min and max figures, sure, but what are all the columns full of 'na' for,
> other than repeating my initials time and time again?)

The ipmitool manpage says that these are upper non-recoverable, upper
critical, upper non-critical and the same for lower. So the upp and
lower critical thresholds are set here.
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