Event Repository Overview - Metasys - LIT-12013243 - M4-OASMIN-0 - M4-OASSTD-0 - Server - Open Application Server - 13.0

Open Application Server (OAS) Commissioning Guide

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Open Application Server
Document type
Commissioning Guide
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The Event repository resides on the OAS within the SQL Server software database. You may view and acknowledge OAS alarms and events in the event repository. The newest and highest priority alarm or event that requires acknowledgment appears in the Alarms window in SMP and the Alarm Notification Bar in Metasys UI. Use the Event Viewer in SMP or the System Activity feature in Metasys UI in theAlarms tab to see all the events in a device repository. When the device repository receives an acknowledgment either from the user interface or through a web service, the original source device of the alarm is notified.

The installation program places the Event repository on the same computer where the OAS software resides. The default directory location is C:\Program Files\Microsoft SQL Server\MSSQL<version>.MSSQLSERVER\MSSQL\DATA. If you want to change where the databases are loaded, you need to do so before you install OAS. For details, refer to the Open Application Server (OAS) Installation Instructions (LIT-12013222).

The OAS performance degrades as the number and frequency of event samples coming into the OAS Event repository increases depending on the hardware resources used for the OAS computer. You can optimize the required storage size of the OAS Event repository by only defining intrinsic alarming, Event Enrollment objects, or alarm extensions for point objects for which event messages need to be processed and archived. In addition, optimize the network communication performance for transferring event messages from NAE/NCE or NIE devices to the OAS Event repository by optimizing the Alarm repository size in the device object of each NAE/NCE or NIE. Refer to the Alarm and Event Management section in the Metasys SMP Help (LIT-1201793) for more information.