I eventually found that what I was looking for was Varnish. Here is the description from wikipedia that explains the disk caching side of things.... "Varnish s

I eventually found that what I was looking for was Varnish. Here is the description from wikipedia that explains the disk caching side of things.... "Varnish stores data in virtual memory and leaves the task of deciding what is stored in memory and what gets paged out to disk to the operating system. This helps avoid the situation where the operating system starts caching data while it is moved to disk by the application." Thanks to anyone who tried to help :-)