a guideline to use, is maximum of 70% of available ram on the server. But for your specific question, i have not seen any significant increase of speed after 27G cache used even if db is way larger than that
I would like to know what BackgroundHALShouldPause does, and how to use it. While it's listed in the HAL Primitives report, it is not used in source code and it doesn't appear in the LMS HAL...
