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This article describes the issue when after upgrading from NTA version 3.11 to 4+ on a 64-bit system, the Flow Data is unable to migrate from the SQL Database to the new Flow Storage. It also displays the following error:
ERROR SolarWinds.Orion.Common.SWEventLogging - Unhandled exception - Disk free space information [Temp - [C:] - xxxxxxxxxxxx bytes free, DB - [C:] - xxxxxxxxxxxx bytes free] : Exception 'SqlException' while resolving string IDs: Invalid object name 'NetFlowFastBitStringHeap'.
NTA version 4 +
This issue occurs when the Configuration Wizard tables required by Netflow are not created. This means that Data cannot be created and also that new Flows cannot be stored
Nnote: This operation will continue to run in the background until completion.