The article provides the needed information to change the location of your DataVirtuality server temp folder.
By default the location is .../dvserver/standalone/tmp.
In order to change the location you will have to adjust the standalone.conf.props.bat for Windows machines and the standalone.conf.props for a Linux machines.
Please add the following line to the file:
set "JAVA_OPTS=%JAVA_OPTS% -Djboss.server.temp.dir=<newLocation>
The use the new location, you will have to restart the DataVirtuality server.