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posted on May 13th 2019, at 13:48
by lunarg
It may happen (on badly configured SQL Servers) that the event log for maintenance plans fills up your storage and that it is no longer possible (because the volume is full) to use a task to clear the history. In that case, you can use the script attached to manually clear out the data.

The maintenance plan history is stored in the system database MSDB. If maintenance plans are defined and there's no task to occassionally clear the history, it will continue to fill up the database (and the volume it is on). If there's insufficient disk space, manually running the clean up task will fail because it will temporarily require additional space. The attached script drops some specific constraints  ...