VMWare vCenter Discovery vs OS Discovery

julianw · ‎08-17-2017

Hello all,

I have a question about vCenter discovery vs "standard" OS discovery.

Actually once we discover vCenter, we have the whole topology of virtualization machines. But regarding VMs, we still did not discover them directly through OS using standard protocols such as WMI and SSH. So if we want a completeness of discovery with all attributes of servers completed as well as virtualization topology, we should run both discoveries.

Is there a way to identify by a report which VM are only discovered through vCenter and not through OS?

Regards,

Julian

VivekSattanatha · ‎08-18-2017

Hi Julian,

It is possible. An OOB Business rule will check When ever OS based discovery updates in Server tables. if there is one Server discovered as a Windows and through vCenter also you discovered it as VM instance in cmdb_ci_vmware_instance table then the Business rule will create a relationship between the Windows server and the VM instance. The relationship will look like below.

So VM instances which are not having this relationship then those servers are not discovered it by OS. You could take the report in the relationship table. I will just give you an idea about the condition, parent class will be cmdb_ci_vmware_instance and relationship does not have instantiated by.

Regards,

Vivek

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jomonmathew · ‎02-04-2021

Hi Vivek,

What is the criteria by which this relationship is built, Is it based on serial number or any other attributes. In our environment both are discovered, but we can't see relationship is built

Regards
Jomon Mathew