Data synchronization issues can occur in Microsoft System Center Operations Manager (OpsMgr) following the restoration of the OperationsManager database (DB) without restoring the OperationsManagerDW database.
After restoring the OperationsManager DB, you may observe errors in the OpsMgr event logs, specifically Event ID 31552, related to Data Warehouse synchronization. These errors indicate that OpsMgr is attempting to synchronize a Management Pack that already exists in the Data Warehouse, resulting in synchronization failure.
Preventive Measures: To prevent synchronization issues when restoring the OperationsManager DB, it's essential to ensure that you also restore the OperationsManagerDW database from backups taken simultaneously. If you do not restore the OperationsManagerDW DB, you may encounter synchronization problems due to changes made between the backup of the OperationsManager DB and the restore.
Here are steps to follow to prevent such issues:
- Restore both the OperationsManager DB and OperationsManagerDW DB simultaneously to maintain consistency.
- Be cautious of any changes made within OpsMgr, as many configuration settings are stored in Management Packs.
- Understand that even seemingly minor changes, such as editing a group or override, can update a Management Pack, potentially causing synchronization issues.
Recovery Plan: If you've encountered synchronization issues after restoring only the OperationsManager DB, you can follow this recovery plan to resolve them:
Step 1: Identify the Blocking Management Pack
- Locate Event ID 31552 in the OperationsManager event log, which will specify the Management Pack causing the synchronization problem.
- Note the numbers mentioned in the event details.
Step 2: Run SQL Query to Identify the Management Pack
- Use the numbers from the event details to run the following SQL query against the Data Warehouse:
Use OperationsManagerDW
select ManagementPackSystemName, ManagementPackDefaultName, ManagementPackDefaultDescription
from dbo.ManagementGroupManagementPackVersion mgmpv
join ManagementPackVersion mpv
on mpv.ManagementPackVersionRowId = mgmpv.ManagementPackVersionRowId
join ManagementPack mp
on mpv.ManagementPackRowId = mp.ManagementPackRowId
WHERE [ManagementGroupRowId] = 1
and mpv.[ManagementPackVersionRowId] = 7482
Step 3: Export and Update the Management Pack
- Once you've identified the problematic Management Pack, update its version. You can usually do this through the OpsMgr console by incrementing the version number.
- If the Management Pack is Notifications Internal, you may need to export it, manually modify the version, and then re-import it.
Step 4: Edit the Version Number
- Open the Management Pack file in a text editor and increase the version number as needed.
Step 5: Import the Updated Management Pack
- Save the modified Management Pack file and reimport it into OpsMgr.
- This action should unblock the synchronization for the specific Management Pack.
Step 6: Monitor Event Logs
- Continue monitoring the OpsMgr event logs for Event ID 31552 or 31554.
- If further synchronization issues are detected, repeat Steps 1 to 6 until Event ID 31154 is logged, indicating successful configuration synchronization.
Conclusion: Restoring the OperationsManager DB without also restoring the OperationsManagerDW DB can lead to Data Warehouse synchronization issues in Microsoft System Center Operations Manager. To prevent such problems, always restore both databases simultaneously when performing recovery operations. If synchronization issues occur, follow the provided recovery plan to identify and resolve the blocking Management Packs, ensuring the smooth operation of OpsMgr.