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Home > Success Center > Netflow Traffic Analyzer (NTA) > NTA - Knowledgebase Articles > Remove stale data from the Orion database after upgrading to NTA 4 and later versions

Remove stale data from the Orion database after upgrading to NTA 4 and later versions

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Created by Michael Perez, last modified by MindTouch on Jun 23, 2016

Views: 821 Votes: 2 Revisions: 4


When upgrading to NTA 4 and later versions, Orion makes use of the FlowStorage Database and will not add new Netflow data in the Orion database. If you chose to retain the previous data during migration, this article will describe how to remove it after the migration.  


NTA 4 and later versions


  1. Take a full backup of the Orion database.  
  2. Run the following query against the Orion Database:
    UPDATE NetFlowGlobalSettings
    SET Value = 2
    WHERE Keyname = 'MigrateSqlFlows.MigrationOption'
  3. Restart the Netflow service on the Orion server, followed by all additional polling engines.


When the Netflow service sees that the setting changed in the database, it will trigger the removal of the stale information from the Orion database. This will cause no changes on the FlowStorage Database.  




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