Hi, I was the SQL Server DBA for two factories running SQL Server in a clustered environment. We had a thruput of 900 transactions per second. Implemented DR and replication using a central distributor. I would agree with all the advice given earlier. So apart for what has been said and stating the obvious read as much as you can on SQL Server - STAY FOCUSED at all times. Don't get lazy. Always be aware of your environment and keep on top of it. A good tool to give you a heads up on potential problems is Spotlight. Hope my input is of use to you going forward. 🙂