Re: [munin-users] help with if_errcoll_mac at solaris

[Michael R. <mic...@gm...>]

On Tuesday 14 April 2009, Nicolai Langfeldt wrote:
> Michael Renner wrote:
> > Moin,
> >
> > I have some solaris machines. At some of them I see peaks in the "mac
> > Error & Collisons" graph; up to 15M! There are some, lets say, 10 of
> > these peaks per day. It looks very alarming .
> >
> > But when I check the state using kstat at the console it seems more
> > harmless to me: only 50.000 ioerrors at one interfaces.
> >
> > So: how can I interpret the munin graph and its height?
>
> Counter reset?
> http://munin.projects.linpro.no/wiki/plugin-bcp#Spikesandwraparound
>
> But counter reset seems odd since 15M is not anywhere close to a power of
> 2?

Moin,
there where some errors at this interface. After changing the type the spikes 
are gone!

Thanks
> Some RF noise or physical phenomena makes the network medium noisy, like
> a old microwave?  What does the switch the host is attached to say about
> errors?

Nothing, this is curious. More curious: I have this problem (the 'real' 
errors) at the same interface at two hosts that build a cluster!
 
CU
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|Michael Renner      E-mail: mic...@gm...  |
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