http://sqlblog.com/blogs/marco_russo/archive/2013/03/13/cost-of-process-defrag-in-analysis-services-tabular-ssas-tabular.aspxI recently received a question about the memory required to run a Process Defrag on a Tabular model in Analysis Services. The Process Defrag is useful when you run incremental processing of a table frequently, or when some of the values in the dictionaryenCommunityServer 2.1 SP2 (Build: 61129.1)