I am about to embark on an attempt at setting up my first clustered server, which will be running SQL 2005 and W2003 Ent. Server on 2 nodes. I will have 3 instances of SQL running. I would like to have one instance running on the first node and 2 other instances running on the second. I assume this would require an active/active configuration. I also have 7 72.8 Gig hard drives in a HP MSA500 cluster disk array. I have several questions? 1. Would the SQL instances run quicker this way? 2. Can I safely assume that, if one failed, the other would take up the responsibility for all SQL instances? 3. What would be the best RAID configuration? 4. Would it be best if I put one drive physically in each server and left only 5 for the RAID array? Thank you for your help.