Hi Satya From what you say Rebuild indexes can be used offline - for high fragmentation. I want to know if the process for rebuild is exactly the same as reorganise indexes - does it allocate fillfactor in exactly the same way? I suspect it doesn't but from what you have said it is not 100% clear to me. I don't clearly see the difference between reorganisation and rebuild. Thanks - I appreciate your advice as I want to be able to clarify why you should not use reorganisation and rebuild in the same maintenance plan.