[rrd-users] Re: Validation of data collected

[Ketan Patel]

this sounds a feasible solution. 
unlike my managers, i am not too much concerned about veracity of collected snmp data. for me, accepting snmp data is similar to accepting the time shown by watch without "VERIFYING" it. of course like other physical entities, it is bound to deteriorate with time, but its irregulatities can be caught easily. same way highly irregular graphs should pinpoint either the problem with the data collected or targetted device. let's see if i can pursue managers to believe this fact. 
anyway, Mohamed/Mark thanks for your input on this
cheers
k2
 "Rippe, Mark (CCI-New England)" <Mark.Rippe at cox.com> wrote:ketan,

the only way i know of to verify the snmp data gathered, is to go into the device and do a command line query.
compare this with the snmp data.
you can write a script and run it as a cron job,
or you can do it manually.

mark.rippe at cox.com

Someone who says little things don't bother them 
has never tried to sleep in a room 
with one mosquito.


-----Original Message-----
From: Ketan Patel [mailto:k2pattu at yahoo.com]
Sent: Tuesday, February 25, 2003 8:42 AM
To: m.eldesoky at tedata.net
Cc: rrd-users at list.ee.ethz.ch
Subject: [rrd-users] Re: Validation of data collected



Yes, this makes sense to verify the end result. 
I don't intend to be pain in the butts, however, my original concern still remains - how do we make sure that target is replying the correct data to SNMP queries? 
Any insight on this would be greatly healpful,
cheers
Ketan
Mohamed Eldesoky wrote:Then use MRTG for the purpose of comparison only.

Regards
M. Eldesoky

On Tuesday 25 February 2003 2:56 pm, Ketan Patel wrote:
> So your suggestion is to plot separate graphs using data fetched by
> different tools and compare them. Current monitor? If I interpret you
> correctly, it should be RRDTool as we are starting to use this for the
> first time. We would use RRDTool only. thanks
> Ketan
> Mohamed Eldesoky wrote:What is your current
> monitor ?? Is it MRTG ??
> Compare the graphs of whatever monitor you use now, with the ones of
> RRDTool.
>
> I use it here, and I trust it.
>
> Regards
> M. Eldesoky
>
> On Monday 24 February 2003 8:28 pm, Ketan Patel wrote:
> > In a meeting while discussing use of RRDTool, a question was raised about
> > verifying the data being collected from target using SNMP queries. We
> > want to make sure what we are looking at, is actually a correct data and
> > represents the true health of the target.
> >
> > I understand SNMP counters represents actual values. However, I am not
> > sure if there is any hole that gives wrong replies to queries.
> >
> > So, does anyone know how to validate the data before storing it? At the
> > initial stage we are monitoring load on a server by a running process and
> > a router carrying out the traffic.
> >
> > cheers
> >
> > Ketan
> >
> >
> >
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