Configure the alarm buffer size

Communication in the Distributed Alarm system consists largely of alarm queries and alarm records sent between nodes. Within a node, alarm queries and records are held in the InTouch internal alarm memory, also called the alarm buffer, to minimize network traffic. The alarm buffer size is maximum number of alarms the node can store for summary or historical alarm queries. The alarm buffer deletes the oldest records to make room for new records.

Only alarm events stored in memory can be shown in an application window. If your InTouch application does not show any alarm status, you can set the buffer size to 1 to conserve node memory.

Assigning a large value to the alarm buffer can potentially affect node performance. For a Distributed Alarm system, we recommend the default value of 500.

Configure the alarm buffer size

1. Open WindowMaker.

2. On the File menu, point to Configure, and then select Alarms.

   The Alarms configuration screen appears.

   

3. In the Alarm buffer size box, type the maximum number of alarm entries that can be stored in the memory alarm buffer for summary or historical queries.

4. Select Save.