Sybase IQ handles up to 200 user connections on 32-bit platforms (Linux and Windows 2000.2003/XP), and up to 1000 user connections on 64-bit platforms (Sun Solaris, HP-UX and Itanium, and AIX). To support this greater number of users on 64-bit systems, you may need to adjust both operating system parameters and start_asiq server parameters. For recommendations, see the Sybase IQ Installation and Configuration Guide as well as the sections that follow.