How to distinguish whether a discovered item is an update or new, etc

[Tsuyoshi Sato]

Dear all,

When running Discovery, many devices are obtained, and it is difficult to confirm their status (Update, New). Additionally, due to the large number of devices, it is operationally challenging to check all of them.

Therefore, I would like to reduce the operational burden by only checking the relevant CIs when there is an action on a CI.
Are there appropriate OOB features to check the following?

- A new device was found in Discovery (I think this can be confirmed by checking the Activity in the Device table).
- A device was updated in Discovery due to an operation (e.g., adding a VLAN to a switch).
- A device that was successfully obtained until yesterday is not being obtained today.

[Hayo Lubbers]

Hi @Tsuyoshi Sato ,

You can play around with the 'Most recent Discovery' date/time and the Created On.

New device found, something like (depending on your Discovery frequency, weekends etc.) last 72hrs:

Most recent Discovery relative after 72 hrs ago && Created relative after 72 hrs ago

An update could be where the Most recent discovery is from the last 72hrs, but the Created on is longer ago.

And the not-found is Most recent discovery not empty && more than 72hrs ago.

Hope this helps.

Regards,

Hayo

[Selva Arun]

Hi,

I usually follow the below in my organization:

1. Checking for New Devices Found in Discovery:

   • To verify if a new device was discovered, you can examine the Discovery Device History. This feature allows you to view and compare the history of changes and updates related to discovered devices.
   • You can find detailed documentation on how to use this feature in the Discovery device history (servicenow.com)

2. Detecting Device Updates Due to Operations:

   • You can the patterns executed, check for the payload processing sections.
   • ServiceNow provides an identifier technique to check if a CI record was updated manually or by Discovery. You can learn more about this in the Identifier for Manually updated CI and Discovery updated CI for an existing record - Support and Tro...

3. Monitoring Devices Not Obtained Today:

   • Go to Discovery Status table and search for your record, go to device tabs and look out for the unsuccessful scan.

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