EUCLID currently has a three-tier architecture model with duplicate tiers located in each of the University’s two main server rooms: Kings Building (KB) and Appleton Tower (AT). It uses 6 machines (Solaris servers) as front Web Tier, which will not be supported any longer by Sun Oracle from 31st July 2013.
The six web servers do no real work anymore; all work is now done on the App Tier. This project is an opportunity to simplify/consolidate the architecture. Since the two-tier architecture is also now recommended by Tribal, this project will decommission those 6 web servers, and EUCLID will become a two-tier architecture model using the existing mid application tier (6 servers), connected to the database. It is expected that reducing the infrastructure will also have positive effects on resilience.