Partitioning is only supported in MS SQL Server Enterprise Editions.
The data_engine Configure GUI should prevent enabling partitioning if the MSSQL Server database manager it is configured to connect to is a Standard Edition, but this setting can be overridden if the following key value is set in the <setup> section of the data_engine.cfg file through the probe;s Raw Configure GUI:
data_management_partition = yes
To correct this, first change the value of this key to no from the probe's Raw Configure GUI, apply the change and restart the probe.
Allow the data_engine to run at least 24 hours to see if this automatically resolves the issue.
If not, then following the procedure outlined in the following Knowledge document to incrementally delete the old QoS data that exceeds the Raw data retention period:KB000009547 : How to trouble shoot data retention and Database growth