Other Discovery Tips

Discovery Job - Domain Overlap

Search for	Example	Results
A single word	`cat`	Topics that contain the word "cat". You will also find its grammatical variations, such as "cats".
A phrase. You can specify that the search results contain a specific phrase.	`"cat food"` (quotation marks)	Topics that contain the literal phrase "cat food" and all its grammatical variations. Without the quotation marks, the query is equivalent to specifying an OR operator, which finds topics with one of the individual words instead of the phrase.

Search for	Operator	Example
Two or more words in the same topic	`AND` `and` `+` (plus symbol) `&` (ampersand)	`cat AND dog` `"cat food"+milk` `"cat food"&"dog food"`
Either word in a topic	`OR` `or` `\|` (pipe)	`cat OR dog` `cat \| dog`
Topics that do not contain a specific word or phrase	`NOT` `not` `!` (exclamation point)	`NOT cat` `! dog`
Topics that contain one string and do not contain another	`^` (caret)	`cat ^ mouse`
A combination of search types	`( )` parentheses	`cat + (dog \| mouse)` `cat \| dog + (! mouse)`

IP range overlap in domains: IP range duplicates are allowed in different domains. Be cognizant about adding the same IP ranges to multiple domains as the identification rule for an IP address includes the domain name in the ID criteria. Therefore, there is a strong possibility of creating duplicate IP addresses.

Also jobs like HMC, VCenter connections should be managed efficiently in the respective domains. If you have a VCetner which provisions servers in different domains, you may end up with duplicates on IP Address layer.

Discovery Job - Aging Settings

Software IT Asset Management always look for fresh data from the discovery scan.

You can set the aging setting per CI type on the adapter level to get ever green data.

In UCMDB, go to Data Flow Management > Universal Discovery > Discovery Modules/Jobs > Hosts and Resources > Inventory Discovery > Inventory by Scanner > Inventory Discovery by Scanner.

Right-click the Inventory Discovery by Scanner job and select Go to Adapter.

Click the Adapter Configuration tab.

Select Only on Success and validate if Installed Software has Auto Delete option enabled.

Discovery

Agent vs. Agentless

	Protocol	Things to be aware of...	Legacy/Outdates OS Support	Software Utilization	Call Home	Advanced Inventory
UD Agent	UDA	Agent upgrades, making sure UD agent is up	Nil	X	X	Pre/Post Scan feature
Agentless	SSH, NTCMD, Telnet	Security roadblock, Password resets	Most	Nil	Nil	Custom DDMA Adapter

Protocol

Things to be aware of...

Legacy/Outdates OS Support

Software Utilization

Call Home

Advanced Inventory

UD Agent

UDA

Agent upgrades, making sure UD agent is up

Nil

Pre/Post Scan feature

Agentless