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vCenter Discovery and process flow

vCenter Discovery and process flow

Discovery classifies the process running on a Windows or Linux machine.

Discovering vCenter CIs

After classifying vCenter, Discovery launches the VMware - vCenter probe, which logs into the vCenter instance with the credentials provided and uses the vCenter API to return information about ESXi machines, virtual machines, and resource pools. If you use a domain account to access vCenter, specify the domain with the user name in the credential record in one of the such as Domain\UserName.

The vmapp port probe can also trigger the VMWare - VCenter probe.

CIs removed from vCenter

When a vCenter CI, such as a virtual machine, is removed, the instance marks it stale in the CMDB, using either of these procedures:
  • When Discovery runs, it creates an audit record in the CMDB Health Result [cmdb_health_result] table for the missing CI and marks the CI "stale".
  • If the instance is configured to collect vCenter events, the system can also create a "stale" audit record for the CI in the CMDB Health Result [cmdb_health_result] table from the VmRemovedEvent event, without having to run Discovery.
Note: The Dependency View (BSM map) grays out stale CIs in its relationship diagram to indicate that they were removed from vCenter.
Figure 1. vCenter CI marked as "stale"
vCenter CI marked as "stale"

You have the option of creating a CMDB remediation rule to automatically execute a remediation workflow that can, for example, delete stale CIs. For more information on stale CIs, see CMDB Health Metrics.