---
sourceDocument: Yokohama IT Operations Management
sourceDocumentLink: https://servicenow-prod.fluidtopics.net/r/yokohama/it-operations-management

 Release :

    - yokohama

ft:locale :

    - en-US

ft:publication_title :

    - Yokohama IT Operations Management

ft:clusterId :

    - itom

bundleId :

    - itom

workflow :

    - Technology


---

# Windows server cluster

# Windows server cluster discovery {#ariaid-title1}

* Release version: Yokohama
* 
* Updated January 30, 2025
* 
* ![](https://www.servicenow.com/docs/portal-asset/ico-clock) 1 minute to read

Discovery establishes the relationships between a Windows
server cluster and its nodes.
When a Windows server is found, and Discovery detects that it
is part of a cluster, the system launches the Windows - Cluster probe. Navigate to Discovery DefinitionProbes and open the record for the Windows - Cluster probe to see the specific data
Discovery collects.  
Note:  
Discovery collects cluster resources based on the MSCluster_ResourceType WMI class. To see a list of default cluster resources, see [Resource Types](https://msdn.microsoft.com/en-us/library/windows/desktop/aa372279(v=vs.85).aspx). To understand how cluster resources are related to process classifiers, see [Relate the process classifier to Windows cluster resources](https://servicenow-prod.fluidtopics.net/xR_uM91NpXsWu_pA3OUUdQ#t_RelateTheProcessClassifier "In the second step, relate the process classifier to the information that is in the Windows Cluster resources table.").

## Cluster data tables

Discovery creates CIs for clusters in these tables:

* Windows Cluster \[cmdb_ci_win_cluster\]
* Windows Cluster Resource(s) \[cmdb_ci_win_cluster_resource\]
* Windows Cluster Node(s) \[cmdb_ci_win_cluster_node\]
* Cluster Node Resource(s) \[cmdb_ci_cluster_node_resource\]
* Cluster Virtual IP(s) \[cmdb_ci_cluster_vip\]
{#r_WindowsServerClusterDiscovery__ul_fhc_rnk_g5}

## Cluster relationships

Discovery creates a CI Relationship \[cmdb_rel_ci\] record for each node, using these relationships:

* Cluster of::Cluster: Relationship between the cluster nodes and the cluster. [Service Mapping](https://servicenow-prod.fluidtopics.net/SSq52NRkIyGTocyFrHF1cw "The ServiceNow Service Mapping application discovers all application services in your organization and builds a comprehensive map of all devices, applications, and configuration profiles used in these application services.") uses this relationship to map the Windows cluster and it's nodes.
* Members::Member of: Relationship between the cluster and the cluster node.
* Hosted on::Hosts: Relationship between the cluster nodes and the Windows server.
* Uses::Used by: Cluster VirtualIP and Windows Cluster Node.
* Defines resources for::Gets resources from: Windows Cluster Resources and Windows Cluster.
* Defines resources for::Gets resources from: Windows Cluster Resources and Windows Cluster Node.
{#r_WindowsServerClusterDiscovery__ul_fjg_h13_h5}  
Figure 1. Windows cluster map  
Figure 2. Windows cluster node relationships

## Cluster references

Discovery creates the following cluster references:

* From Windows Cluster Nodes to the associated Windows Cluster.
* From Windows Cluster Resources to the associated Windows Cluster.
* From Cluster Virtual IPs to the associated Windows Cluster.
* From Cluster Node Resources to the associated Windows Cluster Node.
* From Cluster Virtual IPs to the associated Windows Cluster Node.
{#r_WindowsServerClusterDiscovery__ul_utt_h23_h5}  
Note:  
References are maintained in Discovery to provide backward compatibility for systems that use them.

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