Available on-premise discovery patterns › Discovery patterns used by ITOM Visibility › ITOM Visibility › IT Operations Management

Release: Australia · Updated: 2026-03-12 · Official documentation · View source

Oracle Linux Virtualization Manager and Red Hat Virtualization discovery

The ServiceNow Discovery application uses patterns to find Oracle Linux Virtualization Manager (OLVM) and Red Hat Virtualization (RHV) components. Discovering some of these resources may require updating to the latest version of the Discovery and Service Mapping Patterns application from the ServiceNow Store.

Starting with version 1.28.0, Discovery and Service Mapping Patterns supports both OLVM and RHV discovery. Note that the RHV patterns, tables, and related items have been renamed to oVirt.

Discovery uses the following patterns for OLVM and RHV discovery:

oVirt Clusters and Hosts
oVirt Discover Logical Datacenters
oVirt Discover Manager Instance
oVirt Virtual Machines
oVirt Templates (starting with Discovery and Service Mapping Patterns version 1.29.0)

Request apps on the Store

Visit the ServiceNow Store to view all the available apps, and for information about submitting requests to the store. For cumulative release notes information for all released apps, see the ServiceNow Store version history release notes.

OLVM and RHV data model

The OLVM and RHV patterns introduce the following CI classes that are part of the data model.

CI class	Extends from
oVirt LDC [cmdb_ci_rhv_ldc]	Logical Datacenter [cmdb_ci_logical_datacenter]
oVirt Cluster [cmdb_ci_rhv_cluster]	oVirt Object [cmdb_ci_rhv_object]
oVirt Server [cmdb_ci_rhv_server]	Virtualization Server [cmdb_ci_virtualization_server]
oVirt Virtual Machine Instance [cmdb_ci_rhv_vm_instance]	Virtual Machine Instance [cmdb_ci_vm_instance]
Cloud Mgmt Network Interface [cmdb_ci_nic]	Network Adapter [cmdb_ci_network_adapter]
Cloud Service Account [cmdb_ci_cloud_service_account]	Virtual Machine Object [cmdb_ci_vm_object]
IP Address [cmdb_ci_ip_address]	Configuration Item [cmdb_ci]
VNIC Endpoint [cmdb_ci_endpoint_vnic]	Endpoint [cmdb_ci_endpoint]

Prerequisites

Deploy the MID Server

Deploy and connect the dedicated MID Server to access either the OLVM or Red Hat Virtualization Manager (RHV-M) instances.

Create oVirt credentials

Configure the following credentials:

Navigate to Discovery > Credentials.
Select New.

Select oVirt Credentials, fill in the form, and then select Submit.

Field	Description
Name	Credential name.
User name	Name of the user for performing this discovery.
Password	Password for this user.
Active	Option to select to enable this credential for discovery.
Bearer Token	Option to select to enable use of a bearer token.

Verify API permissions

Verify that the user has read-only permissions to send the following queries.
- /ovirt-engine/api/
- /ovirt-engine/api/datacenters
- /ovirt-engine/api/clusters
- /ovirt-engine/api/hosts
- /ovirt-engine/api/vms
- /ovirt-engine/api/disks
- /ovirt-engine/api/templates
- /ovirt-engine/api/networks
- Add CMDB CI Class Models
Add class models that extend the CMDB class hierarchy, using the CMDB CI Class Models application. The app is available from the ServiceNow Store. Discovery patterns use these class extensions to populate CIs. For more information, see Red Hat Virtualization (RHV) extension classes.
Create a cloud service account

Create an OLVM or RHV cloud service account on the ServiceNow instance.

Note: Confirm that Discovery Admin Workspace is using at least version 1.10.0. The Discovery > Cloud Service Accounts navigation module isn't available with earlier versions. To access Cloud Service Accounts with an earlier version, enter in the navigation filter: cmdb_ci_cloud_service_account.list.
1. Navigate to All > Discovery > Cloud Service Accounts
2. Select New.
3. On the form, fill in the fields.

Field	Description
Name	A unique name for the service account.
Account Id	The account ID to which this credential belongs. The API url of the instance should be specified, including the port. For example: `https://my-manager-instance.com:443`.
Discovery credentials	The discovery credentials that were created previously.
Datacenter Type	The datacenter type, which should be oVirt LDC \[cmdb\_ci\_rhv\_ldc\].

Create a discovery schedule

For more information, see Create an oVirt Discovery schedule in Discovery Admin Workspace.
(Optional) Populate Service Account and Logical Datacenter fields in cloud CIs

Starting with Discovery and Service Mapping Patterns version 1.30.2, you can improve query performance by populating Service Account and Logical Datacenter fields directly in cloud CIs. For more information, see Improved query performance with direct field population in CI tables.

Data collected by Discovery during horizontal discovery

Discovery populates the data in the CMDB when running the patterns.

Field	Description
Name [name]	Name of the datacenter.
Object ID [object_id]	Unique object identifier.
Description [short_description]	Description of the datacenter that you provide for easy identification.
Quota Mode [quota_mode]	Quota mode policy.
Href ID [href_id]	Href ID.

Field	Description
Name [name]	Name of the cluster.
Object ID [object_id]	Unique object identifier.
Description [short_description]	Description of the cluster that you provide for easy identification.
CPU Type [cpu_type]	CPU type. For example, x86_64.
CPU Architecture [cpu_architecture]	CPU architecture. For example, Intel Broadwell IBRS SSBD MDS Family.
KSM [ksm]	Enabled state of kernel same-page merging (KSM) memory policy.
Fencing Policy [fencing_policy]	Fencing policy.
Memory Overcommit [memory_overcommit]	Amount of over-commitment memory allowed on the cluster.
Transparent Huge Pages [thp]	Transparent huge memory pages policy.
Ballooning [ballooning]	Memory ballooning for guests.
Href ID [href_id]	Href ID.

Field	Description
Name [name]	Name of the server.
Serial number [serial_number]	Serial number.
Object ID [object_id]	Unique object identifier.
CPU core count [cpu_core_count]	Total number of cores.
CPU count [cpu_count]	Total number of CPUs.
CPU type [cpu_type]	CPU type.
CPU speed (MHz) [cpu_speed]	CPU speed (MHz).
Host name [host_name]	Hostname.
IP Address [ip_address]	IP address of the server.
Model ID [model_id]	Model ID.
Operating System [os]	OS family.
OS Version [os_version]	OS version.
RAM (MB) [ram]	Amount of RAM (MB).

Field	Description
Name [name]	Name of the instance.
State [state]	State of the instance.
Object ID [object_id]	Unique object identifier.
IP Address [ip_address]	IP address of the instance.
Disks [disks]	Number of disks.
Description [short_description]	Description of the instance that you provide for easy identification.
Fully qualified domain name [fqdn]	Fully Qualified Domain Name (FQDN) of the instance.
CPU Architecture [cpu_architecture]	CPU architecture. For example: Intel Broadwell IBRS SSBD MDS Family.
Delete Protected [delete_protected]	Delete protected, possible values: true or false.
CPUs [cpus]	Number of CPUs.
HA Priority [ha_priority]	High availability (HA) priority.
High Availability [high_availability]	High availability, possible values: true or false.
Memory MAX [memory_policy_max]	Maximum memory in the dynamic memory allocation policy for the virtual machine (VM).
Memory Guarantee (MB) [memory_policy_guaranteed]	Amount of memory guaranteed for the VM (MB).
Multi Queues [multi_queues]	Multi queues.
Placement Policy [placement_policy]	Placement policy.
Stateless [stateless]	Stateless, possible values: true or false.
On Storage Error [storage_error_resume_behaviour]	Behavior of a VM that is paused due to storage I/O error. For example: AUTO_RESUME, LEAVE_PAUSED, and KILL.
Start Time [start_time]	Start time of the VM.
Stop Time [stop_time]	Stop time of the VM.
Threads [threads]	Number of threads.
Time Zone [time_zone]	Time zone of the VM.
USB [usb]	USB enabled state.
Run Once [run_once]	Run once.
RHV Type [rhv_type]	OLVM or RHV type.

Field	Description
Account Id [account_id]	Account ID for this cloud service account.
Object ID [object_id]	Account ID for this cloud service account.
Datacenter Type [datacenter_type]	Type of datacenter: oVirt LDC [cmdb_ci_rhv_ldc].
Discovery credentials [discovery_credentials]	Credentials for this cloud service account.

Field	Description
Name [name]	The IP address of the network interface card (NIC) assigned to the VM.
IP Address [ip_address]	The IP address of the NIC assigned to the VM.
IP version [ip_version]	IP version: IPv4 or IPv6.
Nic [nic]	References the Cloud Mgmt Network Interface [cmdb_ci_nic] associated with this IP address.

Field	Description
Object ID [object_id]	Unique identifier for this resource.
Name [name]	Name for the virtual network interface card (vNIC) endpoint.
IP Address [ip_address]	IP address bound to the network interface.

Field	Description
Object ID [object_id]	ID of the network interface.
Name [name]	Name of the network interface.
IP Address [ip_address]	IP address bound to the network interface.
Public IP [public_ip]	Public IP address bound to the network interface.
Private IP [private_ip]	Private IP address bound to the network interface.

Field	Description
Name [name]	Name of the disk.
Object ID [object_id]	Unique ID of the disk.
Size [size]	Storage capacity of the disk.
Storage type [storage_type]	Type of storage backend the disk is using.

Field	Description
Name [name]	Name of the network.
Object ID [object_id]	Unique ID of the network.

Field	Description
Name [name]	Name of the template.
Object ID [object_id]	Unique ID of the template.
Cores [cores]	Number of CPU cores.
Install Status [install_status]	Install status of the template. Default value is Installed.
Memory MB [memory_mb]	Memory in megabytes (MB).
Provider [provider]	Provider for the template. Value is set to oVirt.

On the Dependency Views map, you can view all discovered OLVM or RHV resources in your organization and the relationships between them.

Image omitted: ovirt-dependency-view.png
OLVM or RHV CIs and connections on a Dependency Views map

CI relationships

The OLVM and RHV patterns create the following relationships and references to support OLVM and RHV discovery. References link to records in other tables and don't appear in the CI Relationship [cmdb_rel_ci] table.

CI	Relationship	CI
Cloud Hardware Type [cmdb_ci_cloud_hardware_type]	Hosted on::Hosts	oVirt LDC [cmdb_ci_rhv_ldc]
Cloud Mgmt Network Interface [cmdb_ci_nic]	Hosted on::Hosts	oVirt LDC [cmdb_ci_rhv_ldc]
Cloud Mgmt Network Interface [cmdb_ci_nic]	Owns::Owned by	IP Address [cmdb_ci_ip_address]
Cloud Network [cmdb_ci_network]	Hosted on::Hosts	oVirt LDC [cmdb_ci_rhv_ldc]
oVirt Cluster [cmdb_ci_rhv_cluster]	Members::Member of	oVirt Server [cmdb_ci_rhv_server]
oVirt LDC [cmdb_ci_rhv_ldc]	Contains::Contained by	oVirt Cluster [cmdb_ci_rhv_cluster]
oVirt LDC [cmdb_ci_rhv_ldc]	Hosted on::Hosts	Cloud Service Account [cmdb_ci_cloud_service_account]
oVirt Server [cmdb_ci_rhv_server]	Runs on::Runs	Linux Server [cmdb_ci_linux_server]
oVirt Virtual Machine Instance [cmdb_ci_rhv_vm_instance]	Contains::Contained by	Storage Volume [cmdb_ci_storage_volume]
oVirt Virtual Machine Instance [cmdb_ci_rhv_vm_instance]	Hosted on::Hosts	oVirt Cluster [cmdb_ci_rhv_cluster]
oVirt Virtual Machine Instance [cmdb_ci_rhv_vm_instance]	Hosted on::Hosts	oVirt LDC [cmdb_ci_rhv_ldc]
oVirt Virtual Machine Instance [cmdb_ci_rhv_vm_instance]	Owns::Owned by	IP Address [cmdb_ci_ip_address]
oVirt Virtual Machine Instance [cmdb_ci_rhv_vm_instance]	Registered on::Has registered	oVirt Server [cmdb_ci_rhv_server]
oVirt Virtual Machine Instance [cmdb_ci_rhv_vm_instance]	Use End Point To::Use End Point From	VNIC Endpoint [cmdb_ci_endpoint_vnic]
Storage Volume [cmdb_ci_storage_volume]	Hosted on::Hosts	oVirt LDC [cmdb_ci_rhv_ldc]
VNIC Endpoint [cmdb_ci_endpoint_vnic]	Implement End Point To::Implement End Point From	Cloud Mgmt Network Interface [cmdb_ci_nic]

CI	Field	Referenced CI
IP Address [cmdb_ci_ip_address]	Nic [nic]	Cloud Mgmt Network Interface [cmdb_ci_nic]

Parent Topic:Available on-premise discovery patterns