Hello, I have the following setup: raid 10 (4x 146GB 15k sas) (partition c: (16gb) and e: (50GB)) raid 1 (2x 73GB 15k sas) (partition d: (20GB)) is the following layout wise? c: system d: transaction logs e: DB, Protocol & Message Tracking Logs Thanks alot, Hans

Technically, microsoft recommends 3 arrays. More details on anticipated server usage would be helpful though. Read this for more details: http://technet.microsoft.com/en-us/library/aa998073.aspx image: http://technet.microsoft.com/en-us/library/Aa998073.b48d94af-146d-4dff-9955-ac00752e4660(en-us,TechNet.10).gif