I stop various netview-daemons every night for doing ovtopofix and database
backups. When I restart the daemons, including snmpCollect, the collecting
cycle starts. So if you need your data only at some points during the day maybe
it will be sufficient to define the interval (4 hours or something like that)
and then extract the data as described by Mel. Or you can start snmpCollect
only at those specific points, but then you can't measure threshholds etc.
during the day. And remember: if a box is down or too busy to answer the
snmp-requests snmpCollect let "sleep" this box for 1 hour (default, you can
change that) and then starts again collecting from this box, so the actual
collecting time may drift away from what you think it should be.
Cordially,
Michael Seibold
>>> mbrinkle@arches.uga.edu 16.11. 13.40 Uhr >>>
SnmpCollect is going to remember the last time time it collected data
because it is taking a five minute average. I have written scripts using
snmpwalk since all the devices had more than one interface. Using this
method one could snapshot the counters over a five minute period and come up
their own five minute average. I developed an elaborate system taking into
account counter rollover, etc. It really wasn't worth it. It takes a lot
of machine power if the number of devices are many.
I would recommend letting SnmpCollect do its work, dump out the database to
a file using SnmpColDump and extract what I needed. All this can be done in
one script in a cron job. I also clear the databases at the same time
making sure the
collections don't overload the filesystem.
Mel
----- Original Message -----
From: "Leslie Clark/Southfield/IBM" <lclark@us.ibm.com>
To: "IBM NetView Discussion" <nv-l@tkg.com>
Sent: Wednesday, November 15, 2000 10:17 PM
Subject: Re: [NV-L] How do I set my own collect time [SnmpCollect ]
> How is this normally done? Well, I hesitate to say this, but I
> doubt that this is normally done. You are fighting every design
> feature of the data collection capabilites of the product. It might
> be easier for you to just use cron to run a script that retrieves
> the data. You could use the snmpget command, or, better yet, the
> mibtable command. See the man pages for those.
>
> Anybody else doing this?
>
> Cordially,
>
> Leslie A. Clark
> IBM Global Services - Systems Mgmt & Networking
> Detroit
>
>
> Clarence Hart <rti1clh@ismd.ups.com>@tkg.com on 11/15/2000 01:24:59 PM
>
> Please respond to IBM NetView Discussion <nv-l@tkg.com>
>
> Sent by: owner-nv-l@tkg.com
>
>
> To: nv-l@tkg.com
> cc:
> Subject: [NV-L] How do I set my own collect time [SnmpCollect ]
>
>
>
>
>
> I want to only get stats from my network devices at specified times of the
> day
> for historical stats. I dont want to use the "interval" setting of
> Tivoli.
>
> Meaning;
>
> Say for example I only want data from -- 6am ,8am, 12pm , 6pm
>
> Thats it!!! But it must be at 6am , 8am, 12pm, and 6pm not every whatever
> amount
> of hours.
>
> How is this noramlly done.
>
> I started writing a script to run from cron that starts the daemon
> at the times above then kill the daemon after I think it should be
> finished.
>
> Even when you run the daemon manually it knows the last time it collected
> data
> so my theory of setting the "interval" to 3h then trying to force a
> collection
> did not work.
> Maybe there is a cahce file I could delete our an entry in the database i
> could
> wack before I start the daemon.
> Hmmmn
>
> There must be a better way!!!
>
>
> Thanks...
>
>
> Clarence Hart
> UPS
> Office: 410-560-4182
> Fax: 410-560-4329
> chart@ups.com
>
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