For applying SP's to the Landscape which tool is the best option ?
I know that there are two tools:
1.)SUM: SUM is the latest tool from SAP. It builds a shadow instance and do all the work in background and finally copies that instance to the present instance. So that it reduces the downtime of the system.
I have a doubt here, when the SUM is running can the users be logged in and do there daily routine ?
If the answer is yes, then I think SUM is the best option for applying SP's.