Hi,   a pity that you donlt use Unix-based OS, because you can easily define a RAM file system.   Anyway, SAS still provides you great functionality to improve your performance a lot. You may want to read the following links:   https://support.sas.com/documentation/cdl/en/hostwin/63285/HTML/default/viewer.htm#winperform.htm http://support.sas.com/documentation/cdl/en/hostwin/67962/HTML/default/viewer.htm#p041tbb02reefnn1jmup3zo7tirr.htm   You can focus on using MEMLIB and MEMCACHE. For this, I love this paper: "Why Aren’t You Using MEMLIB?" http://support.sas.com/resources/papers/proceedings10/070-2010.pdf https://support.sas.com/documentation/cdl/en/hostwin/63285/HTML/default/viewer.htm#win-sysop-memlib.htm   Further more, if you would like to go for more advanced features, you can give a look to the LASR server licenses.   Let us know how it goes.   Best regards, Juan ... View more