Re: [NV-L] xnmcollect throws away values?

Martina, it sounds a little bit like someone has configured the data to be rolled up and aged off. That is not a feature of the product. Someone would have to add it. Is that possible?

To determine whether the problem is with the grapher or with the data, you might try looking directly at the data. If it is in flat files, you can use the snmpColDump command to display the files in /usr/OV/databases/snmpCollect.

This same text view of the datapoints is available from the gui:
Tools...Data Collection & Thresholding (or xnmcollect at the commandline)
Select a variable that is being collected
Verify that the frequency is as you expect.
Click 'Show Data'
Select an instance in the top frame of the dialog
View the datapoints for each node with that interface instance, and the actual intervals (in the left-hand column)
If the datapoints are there, collected on the proper interval, then you should be able to see them with xnmgraph.

Cordially,

Leslie A. Clark
IT Services Specialist, Network Mgmt
Information Technology Services Americas
IBM Global Services
(248) 552-4968 Voicemail, Fax, Pager

"Martina Singer" <martina.singer AT datev DOT de>
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09/07/2006 05:09 AM

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Subject	Re: [NV-L] xnmcollect throws away values?

Hi Leslie,

unfortunately this doesn't work.
No matter if Resolution by data or Resolution User defined.
The effect is the same that the statistic gets smoothed.

I was looking in the serversetup, but also there I can't find options for the snmpCollect.

Greetings
Martina
----- Original Message -----

From: Leslie Clark
To: Tivoli NetView Discussions
Sent: Tuesday, September 05, 2006 3:08 PM
Subject: Re: [NV-L] xnmcollect throws away values?

The data is most likely still there, but the viewer is smoothing the line for you. If this is Unix or Linux, in the viewer, there are options on the menu to specify the time period to show, and how much data to show for that period. I think it is under View. There is one for including or excluding lines, and one for the data. You want the one for the data. To see all of the data for the last month, set the viewing period to 30 days, and the resolution to 'by data'.

Cordially,

Leslie A. Clark
IT Services Specialist, Network Mgmt
Information Technology Services Americas
IBM Global Services
(248) 552-4968 Voicemail, Fax, Pager

"Martina Singer" <martina.singer AT datev DOT de>
Sent by: nv-l-bounces AT lists.ca.ibm DOT com

09/05/2006 07:03 AM

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Tivoli NetView Discussions <nv-l AT lists.ca.ibm DOT com>

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Subject	[NV-L] xnmcollect throws away values?

Hi list,

we collect a MIB for 4 Weeks. Now ist seems that NetView throws away values after a week and only keeps 10 percent of the collected values.
So the tops of Aug/15 seem more plain every day, till only a line is left.

Can I modify the config anywhere?

Bye,
Martina

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