Setting up a CMDB synchronization connection
This topic provides instructions for configuring synchronization from BMC Helix Discovery to one or more instances of BMC Helix ITSM CMDBs, BMC Helix Remedyforce CMDBs, ServiceNow CMDBs.
Before you begin
Before you can synchronize from BMC Helix Discovery to any instance of a supported CMDB, you must have prepared that CMDB. See one of the following topics:
For a Remedyforce CMDB, you do not have to prepare the CMDB, though you do have to create a connected application in Remedyforce. See the Remedyforce documentation for more information.
To configure a CMDB synchronization connection
- Log in to BMC Helix Discovery.
- From the main menu, click the Administration icon.
The Administration page displays.
- From the Model section, click CMDB Sync .
If no CMDB Sync has been configured, a banner displays stating that the no CMDB Sync connections are configured
- Click Add CMDB Connection to add and configure a new connection
- Enter the required details on the Add CMDB Connection page. For more information about the connection details, see Connection details.
- Click Test Connection to verify that the new connection can be reached and the credentials are valid. Testing the connection also retrieves the list of companies from the CMDB for connections other than Remedyforce.
The following image shows creating a connection to a ServiceNow CMDB.
The following image shows a successful connection to a Remedyforce CMDB.
Enter the following details on the Add CMDB Connection page.
|Name||The name of the CMDB Sync connection|
The access mechanism to use to connect to the CMDB:
Select the mechanism to use for the connection. The UI refreshes to provide the correct options for the access mechanism that you selected.
The user name of the CMDB user that is at least a member of a group having the
At minimum, the CMDB Demo user permissions are required for multitenancy to work.
A user is not permitted to connect to the CMDB from a second IP address within 4 hours of their last activity at the first IP address. For a failover scenario, you could also create a second discovery user to connect from the failover appliance.
The Multitenancy option is not available when synchronizing to Remedyforce CMDBs.
The password of the CMDB user (or blank if the user has no password)
Options based on connection type
|REST API URL||The complete URL for the CMDB REST API, including protocol and (if non-standard) the port. For example https://cmdb.example.com:8443/|
|Production Environment||Select the check box if you are synchronizing to a Remedyforce production environment. For production environments, the system usesfor the connection and security verification. This is the default. Deselect the check box if you are synchronizing to a test environment. For test environments, the system uses for the connection and security verification.|
Enter the consumer key that you obtained from the Connected App. For more information about obtaining the consumer key, see Integrating Remedyforce with BMC Discovery.
|Consumer Secret||Enter the consumer secret that you obtained from the Connected App. For more information about obtaining the consumer secret, see Integrating Remedyforce with BMC Discovery .|
|Source Name||Enter a label for the source of the data. Previously when synchronizing to Remedyforce, this has been the static text "BMC Discovery", you can now supply any value you require. The default value is BMC Discovery.|
|REST API URL||The complete URL for the ServiceNow CMDB. For example|
Client Key should be the Client ID from the OAuth API Endpoint in ServiceNow, see Preparing ServiceNow CMDB for synchronization.
|Client Secret||Client Secret should be the Client Secret from the OAuth API Endpoint in ServiceNow, see Preparing ServiceNow CMDB for synchronization.|
|Source Name||Source name should be the value of discovery_source setup in the cmdb_ci choice list in ServiceNow, see Preparing ServiceNow CMDB for synchronization.|
|Create missing reference values|
Select this option for the system to add missing references when inserting data into ServiceNow. For example, a reference to a manufacturer that does not currently exist in the ServiceNow data.
Select the check box to enable continuous sync for this CMDB connection.
During continuous CMDB synchronization, whenever BMC Helix Discovery finishes scanning a device, it is added to the synchronization queue. Similarly, whenever a device node is removed due to aging, it is also queued for synchronization, meaning that the deletion is propagated into the CMDB. In this way, the CMDB stays completely synchronized with BMC Helix Discovery.
Enables you to configure the batch size used for batch operations. If you experience timeouts during a batched operation, most likely during a resync, these may be prevented by setting it to a lower value. You can set the batch size to anything between 1 and 1000. The default is 100.
Enables you to specify the number of workers used by the CMDB sync process. You can set the number of workers from 1 to 20. The default is 1.
The best practice is to start from the default and gradually increase the number up to when sync rate keeps up with discovery rate.
The ID of the dataset used for Discovery data. The default is
The data model for your CMDB. Different versions of the CMDB have different data models, so the data from BMC Helix Discovery must be transformed differently according to the CMDB version.
Select the correct data model from the menu. If you select an incorrect value, you might encounter errors during synchronization.
Multitenancy support. Selecting this check box enables you to choose a default company name from the drop-down list to assign to a discovery run during an initial scan. The list of companies is not populated until one connection has been successfully tested, or you click Get Companies (which also tests the connection).
This section is always displayed. However, if another connection exists, instead of the multitenancy configuration options, a message stating Configure multitenancy from the overview page is displayed along with a link to the CMDB Sync page.
The Multitenancy option is not available when synchronizing to Remedyforce or ServiceNow CMDBs.