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The data about events registered in the system is stored in the Protocol table in Axxon PSIM (by default) or in the Protocol table of an individual database (see Extracting event protocol into an individual database).

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1. To disable events recording to the Event Viewer database, set the Disable logging checkbox (1). This setting is relevant only for the Server corresponding to the Computer object.
   
2. Set the Only local protocols checkbox in case when only If you want to log to the Event Viewer database only the events registered on this computer are to be logged to the database , set the Only local protocols checkbox (2). This setting is relevant only for the Server corresponding to the Computer object.
   If this checkbox is set checked, then the event log Event Viewer database synchronization is has to be started manually using the SyncProtocol.exe utility or a macro (see see The SyncProtocol.exe utility to synchronize event log database and Example of macro to start the Event Viewer databases synchronization).

3. In the Events archive length field field, specify the time period in days for storing the event archive in the Event Viewer database (3). This setting is relevant only for the Server corresponding to the Computer object. To specify the time period for storing the event archive for all Servers in the distributed system, use the common settings in the Programming tab (see The Settings panel of the Security zone object section).  The The value of the Events archive length parameter on the settings panel of the Computer object has the higher priority.

   Info

   title	Note

   If no value is specified in the Events archive length field on the

   configuration

   settings panel of the Computer object, the value specified in the

   configuration

   settings panel of the Security zone object is used.

   Info
   title Note
   The specified Events archive length is also applied to the events received by the Incident server, which are stored in the PROTOCOL_INC_SERVER table of the Psim database.

   
   

   Info
   title Note
   The process of clearing the database of the events older than the specified storage period is started by default every day at midnight. It deletes 100,000 events every three minutes, starting with the oldest ones.

   
   

4. Click the Apply button to save all the changes (4).

The Event Viewer The events logging to database is now configured.

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