DFM Device Discovery

Answered Question
Nov 23rd, 2009

It's taking forever for DFM to disovery devices in LMS 3.2 I have started a discovery at 9:00 am EST this morning for 487 devices and so far only 90 have been found and set to known while the other are still in a learning state.


I have been dealing with this problem for a couple of days and I have re-initialized the DFM database think I had a corrupt DB

What can I do to resolve this?

Correct Answer by Joe Clarke about 7 years 3 months ago

Yep.  As a device becomes known, DFM starts to poll it.  After at least two polling cycles (eight minutes by default), events should start rolling in, and alerts will appear in the Alerts and Activities Display.

Correct Answer by Joe Clarke about 7 years 3 months ago

DFM suffers from the Three Stooges Syndrome in that if you try to cram a lot of devices into it at once, hillarity will insure.  It can take up to three minutes in this case to manage each device.  Therefore, you may see a whole day spent trying to manage these devices.  However, once they all become known, you shouldn't have issues in the future with delays.

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Correct Answer
Joe Clarke Mon, 11/23/2009 - 11:42

DFM suffers from the Three Stooges Syndrome in that if you try to cram a lot of devices into it at once, hillarity will insure.  It can take up to three minutes in this case to manage each device.  Therefore, you may see a whole day spent trying to manage these devices.  However, once they all become known, you shouldn't have issues in the future with delays.

dionjiles Mon, 11/23/2009 - 11:49

Once they become known I should start seeing DFM alerts if I have any devices that have issues correct?

Correct Answer
Joe Clarke Mon, 11/23/2009 - 11:52

Yep.  As a device becomes known, DFM starts to poll it.  After at least two polling cycles (eight minutes by default), events should start rolling in, and alerts will appear in the Alerts and Activities Display.

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