Hi. I have two SQL Servers: one 2005 and one 2008 R2. The hardware builds -- RAM, CPU -- of the two servers are significantly different (although they are both SAN-attached.). We may need to consolidate the two into a single 2008 R2 on a larger machine at a CoLo facility. (Let's assume that the SQL 2005 databases are compatibile with 2008 R2 on the new machine and can be migrated.) I understand more or less about baselining and performance monitoring of individual SQL servers, but am a bit perplexed about how the relative performance of the existing servers may relate to the consolidation. Since the two existing instances are on different hardware, how do I extrapolate or profile how they will perform on a consolidated instance? Another way to ask the question is, what specific metrics can I look at on the existing machines to understand how they will utilize the new machine? What approach would you take to test the proposed consolidation without migrating all the production databases and users? Hope this makes sense. Thanks.