Monday, February 17, 2025

How to change the memory allocation without restarting SAP Sytem...

Yes, we can do that using the (TCODE — RZ11) or RSMEMORY Program.

dynamically we can change the memory and that will be effective only for a particular session. 

The value will be restored back to original, once restarted. 

Here is the flow about allocation of memory:

Dialog work process — 

# Roll area 

 (Ztta/Roll_First)

 (Ztta/Roll_Area)

# Extented Area 

 (Ztta/roll_extension_dia) 

 (em/initial_size_MB)

# Heap area 

 ( abap/heap_area_dia)

Non Dialog work process 

# Roll area 

 (Ztta/Roll_First)

 (Ztta/Roll_Area)

# Heap area 

 (Abap/heap_area_nondia)

# Extended Area 

 (Ztta/roll_extension_nondia)

 ( em/initial_size_MB).