In addition, check out MetaLink note 69200.1. It's a quick reference of all HPUX things related to Oracle. And if you see anything about a 1.75 GB total SGA limit, I believe you shouldn't have to worry about that from Oracle 9i and up on HPUX 11.0 and up, as it's only for 32-bit apps on HPUX. Enjoy! Rich -----Original Message----- From: oracle-l-bounce@xxxxxxxxxxxxx [mailto:oracle-l-bounce@xxxxxxxxxxxxx] On Behalf Of Jared Still Sent: Thursday, June 09, 2005 12:04 PM Cc: Oracle-L@xxxxxxxxxxxxx Subject: Re: Real life memory limits under UNIX/Linux Tim, You might like to read MetaLink note 260152.1 "Summary About the Large SGA &=20 Address Space on Linux". For comparison you might want to consider 225349.1 "Implementing Address Windowing Extensions (AWE) or VLM on Windows Platforms" HTH Jared -- //www.freelists.org/webpage/oracle-l