If you use the Oracle Enterprise Edition, then 25 user per CPU is the licensing requirement when you choose the user based licensing method and this is not to measure the capacity. -----Original Message----- From: raja rao [mailto:raja4list@xxxxxxxxx] Sent: Wednesday, September 28, 2005 6:32 AM To: oracle list Subject: no. of users supported Hi All, os: Solaris 2.9 We have a solaris box with 2 GB RAM and 2 cpus. Is there any rule to know how many oracle connections are fine to work with it (mean to say the oracle sessions on that). I heard it is 26 users per cpu. is this true ? or is there any other principle to calculate how many users concurrently can use this box. (the database is OLTP) Thanks, Raj _____ Yahoo! for Good Click <http://store.yahoo.com/redcross-donate3/> here to donate to the Hurricane Katrina relief effort.