Space 
The following user menus in the DBA Cockpit provide information about saving and/or utilizing memory in caches, volumes and database objects.
Caution
For SAP NetWeaver 7.1, the submenus for the Space menu are partly different.
End of the caution.
SAP liveCache Technology: Heap Usage
SAP liveCache Technology: Class Container Sizes
DB Fill Level (not for SAP NetWeaver 7.1)
DB Activities (not for SAP NetWeaver 7.1)
SAP NetWeaver 7.1: Volumes