Questions about Status Map

[Jim Avery]

On 25/04/07, Frost, Mark {PBG} <mark.frost1 at pepsi.com> wrote:
> Thanks, Jim.
>
> I tried out Nexsm last night and found that it gave me a huge, unordered
> picture of all my hosts.

You need the parent relationships for Nexsm to work, and with that
many hosts you may need to spend a little while dragging hosts around
to make the map look meaningful.  Once you've dragged the hosts to
where you want them you should be able to save the Nexsm map.  Without
those parent relationships defined it's pretty pointless!

> Perhaps I don't fully understand the parent relationship stuff.  That's
> most for routers and switches which we don't monitor (nor really care
> about) -- that's for other teams that are completely disassociated with
> ours.

Even if they're not your responsibility it's worth putting routers in
to your Nagios configuration.  You don't need to do anything more with
them than ping them to make sure they're alive.  It helps in making
sense of your map and greatly helps in ensuring that Nagios won't send
you dozens of alerts when a single router or lan/wan link goes down.

> My understanding is that you setup parent relationships between
> host entitities (including switches and routers) and for what we
> monitor, there are none.

Put the routers in and there will be.  The parent relationships are
all about what nodes are in-between your Nagios system and the host
you are monitoring.  I don't have responsibility for routers - I still
ping them from Nagios but have Nagios configured so that it won't
alert for routers 'down' - only hosts.

> I'll have a look at nagiosmap.

By all means do, but again if you don't have some parent relationships
defined, your 350 hosts will all appear to be connected to the one
parent like the petals of a daisy.

Cheers,

Jim

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