I'm working with my IT dept to set up my new server (the old one is off lease) just like the older one. It turns out it is non standard from company policy. The standard is 1 large drive partitioned into a C (15.6 GB) and D (801 GB). I have 3 databases, 1 is an OLTP system about 95 GB that is approx 70% writes and another is a reporting database about 35 GB and the last is where we archive our OLTP data about 60 GB. My IT departments explanation for wanting to doing something else is: "The server has a C: drive and a D: drive. Both drives are hosted by the same controller. The fact that the physical drives are 15K SAS rather than 10K SCSI will provide higher performance. The RAID used by the controller is not a driving factor. The customer is speaking from older technology rules, based on software RAID rather than hardware RAID. The RAID level is a design rather than a requirement; a requirement would be the Msec access times. RAID-5 is the standard for Server Build and Database teams. I see no need to introduce a special configurationâ€¦" Does this make sense or should I push for different drives?