Preparing BMC Helix CMDB for synchronization

Before you begin

Before you can synchronize data to a supported BMC Discovery version, you must complete the following required tasks in the given order:

1. Create the BMC.ADDM dataset: The BMC.ADDM dataset must be manually created in the CMDB before a synchronization is attempted.
2. Create the Job to merge the BMC.ADDM dataset with BMC.ASSET: After the BMC.ADDM dataset has been created, you must then create the job to reconcile it with the BMC.ASSET dataset.
3. Check the BMC.ADDM dataset configuration: When using ITSM 7.0 with a backwards compatibility patch, you also need to ensure that the BMC.ADDM dataset is trusted.

After completing the preceding tasks, you can start synchronizing BMC Discovery data to BMC Helix CMDB.

Performance considerations

To obtain the maximum synchronization performance when using CMDB synchronization with BMC Discovery, you should consider tuning the database which BMC Discovery (or BMC Helix CMDB) is using. For more information, see the performance tuning documentation corresponding to your product version. The following information should be of particular interest:

• Performance tuning and benchmarks.

• Tuning the AR System database server.

To create the BMC.ADDM dataset

Creating a BMC.ADDM dataset provides a dataset into which BMC Discovery is exported before being taken into the BMC Helix CMDB. You create the dataset by using the BMC Helix CMDB Reconciliation console. It is recommended that you create the BMC.ADDM dataset on the primary AR System server.

You can create a dataset from one of two places in the console.

1. From the Identify activity, click Add Dataset Identification Group Association,
   and then click Create Dataset.

2. From the Mid Tier, open the Core Console > Applications > Reconciliation console, and then click Create Dataset.
   Complete the following fields:

   Field	Description
   Name	The name for the dataset. Usually set to BMC.ADDM.
   ID	The system identifier for the dataset. This must match the ID used in the  configuration in BMC Discovery. The default is BMC.ADDM.
   Accessibility	Set to Writable.
   DatasetType	Set to Regular.

3. Click Save.
   

To create the Identification, Merge and Purge Job

BMC Discovery exports its data to a staging dataset in BMC Helix CMDB. The content of this dataset should then be reconciled into the BMC.ASSET dataset. To accomplish this, a new Job must be added in the BMC Helix CMDB Reconciliation Console. It is recommended that you create the Identification, Merge and Purge Job on the primary AR System server.

1. From the Mid Tier, open BMC Helix CMDB Core Console > Applications > Reconciliation application.
2. Select the Create Standard Identification and Merge Job icon.
3. Give the job a meaningful name (for example, BMC ADDM - Identification, Merge and Purge).
4. Set the Source Dataset to BMC.ADDM.
5. After the job is Created, select BMC ADDM - Identification, Merge and Purge Job.
6. Click the Edit Job icon.
7. From the Job Editor window, in the Activities pane, select the New tab.
8. In the New Activity pane, select Type as Purge, Sequence as 700 and Name as BMC ADDM - Purge.
9. In the Datasets option, select Datasets as BMC.ADDM.
10. Click Done.
11. Click Save in the Job Editor.