Checking Roll /Paging Area and Extended Memory using Transaction ST02 for SAP R/3

You can use Transaction ST02 to check if the buffers from the roll and paging areas are the same size as the paging files. By comparing the values under Max. use, you can check if the buffer size is large enough.

You can determine from the row Extended Memory that the R/3 Extended Memory is sufficiently large. The value Max. use is, in this example, noticeably smaller than the created memory area (In memory). If both values are identical, you must increase the extended memory (profile parameter: em/initial_size_MB).