This worked for me:
1. Deactivate the nas probe.
2. When the nas probe PID and part are cleared in IM, deactivate the alarm_enrichment probe.
3. Delete or rename the following 2 files located in the <installPath>\Nimsoft\probes\service\nas directory:
- database.db
- transactionlog.db
4. Execute the following set of SQL queries from a utility like SQL Server Management Studio to remove all NAS alarms from the database:
DROP TABLE NAS_VERSION
DROP TABLE NAS_ALARMS
DROP TABLE NAS_TRANSACTION_SUMMARY
DROP TABLE NAS_TRANSACTION_LOG
DROP TABLE NAS_NOTES
DROP TABLE NAS_ALARM_NOTE
5. Open the hub Configure GUI
6. From the Status tab, select the nas queue, right-click and select Empty (this will drain the nas queue of all of the alarms that have been queued up)
7. Next, select the alarm_enrichment queue, right-click and select Empty
8. Activate the alarm_enrichment probe
9. When the alarm_enrichment probe displays a PID and port in IM, activate the nas probe.
Any active alarm will be processed by the alarm_enrichment and nas probes and they will start to appear in the Alarm Window in IM. You can then work off of these to determine how best to configure your sqlserver and oracle probes so that they stop generating the large volume of alarms.