I want to turn on arm logging on several cubes I have built. I have registered the log file in management console. (server manager-olap server-advanced options-performance logging.) and then created the file physically in the specified path. When I enter advanced aggregations tuning (in olap cube studio) I choose the log file and Arm analysis....and press generate aggregations I get message: no generated aggregations to recommend. I have tried to query the cube in EG but the log file resume to be empty. What is the problem?? Please help!!