What is the difference between user managed swap space and kernel managed swap space?
The Kernel-Managed Swap Facility (KMSF) is the preferred method for managing virtual memory using swap files for all D4x releases after D40.00 and for G-series releases. You need to configure each processor with at least one kernel-managed swap file that provides the swap facility needed by its processes. You can load your system using the default swap files, but you should also configure additional swap files. You do not want to risk halting your entire system when you run out of swap space.