How large does my Windows Pagefile need to be?
The SAP recommendation for Windows Pagefile sizing has changed many times over recent years. The recommendations of “3 or 4 times physical memory” date back from 32bit days. This no longer applies today. As a minimum a 64 bit ABAP application server consumes around 20GB of Pagefile. In general it is recommended to ensure the Pagefile is large enough to enable a full memory dump in case a system fails or you need to create a memory dump. Although it is technically possible to redirect the crashdump to another disk on Win2008, it is easier to configure this on the boot disk (usually C: Drive). Therefore it is recommended to create a large boot disk with sufficient space to catch a full memory dump. If possible set one large contiguous pagefile the same size as physical memory on the boot disk, usually C: drive.
